Lennox Hearth Indoor Fireplace ULC S610 User Manual

INSTALLATION AND  
OPERATION INSTRUCTIONS  
MONTECITO™  
TM  
EPA Wood-Burning Fireplace  
P/N 850,037M REV. K 05/2010  
MODEL  
MONTE  
This installation manual will enable you to obtain a safe, efficient and  
dependable installation of your fireplace system. Please read and  
understand these instructions before beginning your installation.  
Donotalterormodifythereplaceoritscomponentsunderanycircum-  
stances. Anymodificationoralterationofthereplacesystem,including  
but not limited to the fireplace, chimney components and accessories,  
may void the warranty, listings and approvals of this system and could  
result in an unsafe and potentially dangerous installation.  
Lennox Hearth Products wood-burning fireplaces are designed for use  
as a supplemental heater. They are not intended for continuous use  
as a primary heat source.  
SAVE THESE INSTRUCTIONS  
FOR FUTURE REFERENCE  
Fireplace, also for use in mobile or  
manufactured homes with solid fuel only.  
WARNINGS  
WARNINGS  
Hot! Do not touch! The glass and  
surfaces of this appliance will be hot  
during operation and will retain heat  
for a while after shutting off the appli-  
ance. Severe burns may result.  
Carefully supervise children in the  
same room as appliance.  
The fireplace cannot be operated without a door  
or firescreen. Consult your dealer to select the  
correct replacement door or firescreen.  
Important! To assure proper alignment of glass  
doors: Install this fireplace in a square and  
plumb condition, using shims as necessary at  
sides and/or bottom.  
If small children are present in the home, it  
is recommended that this appliance be fitted  
with a firescreen kit. See Page 20 for ordering  
information.  
Install the fireplace only as described in these  
instructions.  
Listed to standards:  
ULC-S610 and UL-127  
Report No. 307-4084  
EPA Cert. No. 537  
PIMONTECITO REV. 6 MAY 2010  
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- AC Chimney Outside Air Kit  
- Gravity Venting System  
- Rigid Firescreen  
CONGRATULATIONS!  
When you purchased your new fireplace, you joined the ranks of thousands of individuals  
whose answer to their home heating needs reflects their concern for aesthetics, efficiency  
and our environment. We extend our continued support to help you achieve the maximum  
benefit and enjoyment available from your new fireplace.  
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Not tested under EPA certification. If in-  
stalled, this appliance no longer qualifies  
for EPA certification.  
OPERATING THE FIREPLACE  
Fuel  
Thank you for selecting a Lennox Hearth Products fireplace as the answer to your home  
supplemental heating needs.  
USE SOLID NATURAL WOOD FUEL ONLY. The  
Montecito fireplace is designed to work best  
when fueled with dry seasoned natural wood  
only. Hardwoods are preferred to softwoods  
since the energy content of wood is relative to  
its density. Hardwoods will result in a longer  
THE FIREPLACE  
INTRODUCTION  
TABLE OF CONTENTS  
Safety Rules and Specifications for  
The Montecito wood-burning fireplace is an  
energy efficient, heat circulating, closed com-  
bustion fireplace. You will receive a lifetime  
of comfort and enjoyment from your fireplace  
provided it is installed, maintained and oper-  
ated properly.  
Mobile or Manufactured  
Home Installation.........................Page  
Introduction ......................................Page  
Parts Required .................................Page  
Optional Equipment...........................Page  
Operating The Montecito Fireplace....Page  
Fuel...................................................Page  
Starting And Maintaining A Fire ........Page  
Combustion Control .........................Page  
Refueling For Best Performance .......Page  
Smoking – Causes And  
Troubleshooting..............................Page  
Important Cautions ...........................Page  
Maintaining Your Fireplace................Page  
Creosote............................................Page  
Chimney Maintenance.......................Page  
Dealing With A Chimney Fire.............Page  
Finish Door Casing Care....................Page  
Disposing of Ashes...........................Page  
Refractory Installation.......................Page  
Door Installation ...............................Page  
Door Adjustment...............................Page  
Facade Installation ............................Page  
Hearth Extension Requirements........Page  
Cold Climate Installations..................Page  
Framing Dimensions.........................Page  
Nailing Flanges..................................Page  
Facing And Mantel ............................Page  
Fireplace Blower................................Page 10  
Hot Air Ducting Installation ..............Page 10  
Gravity Kit .........................................Page 10  
Outside Air Kit ..................................Page 11  
Chimney System...............................Page 12  
Chimney Installation Notes ...............Page 12  
Chimney Installation Instructions......Page 13  
Offset Chimney Installation...............Page 14  
Angled Wall Radiation Shield ............Page 16  
Glass Care - Replacement.................Page 17  
Glass Care - Cleaning........................Page 17  
Gasket Replacement ........................Page 17  
Fireplace Installation ........................Page 17  
Chimney Support Installation............Page 18  
Chimney Chase And  
Multiple Terminations......................Page 18  
Masonry Application Instructions .....Page 19  
Installation Accessories ....................Page 20  
Chimney Components Lists ..............Page 21  
Replacement Parts............................Page 23  
Specifications....................................Page 23  
Product Reference Information.........Page 24  
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burning fire and less frequent refueling.  
A
moisture content of 15% to 20% (seasoned)  
is recommended. Wood that has been cut and  
split and let to dry under a cover for a period  
of one year will usually meet that criteria. The  
required drying time will vary depending on the  
climate. Wood that is packed tight together will  
take longer to dry. Seasoned wood is darker in  
colorthanwetwoodandwillhavevisiblecracks  
in the grain on the ends. Excessively wet wood  
will be difficult to burn and will result in lower  
efficiency,increasedcreosotinganddepositson  
the glass and in the chimney. Excessively dry  
wood will burn well but will also have higher  
emissions and shorter burning time.  
Please read these instructions and retain  
this manual for future reference.  
Before beginning the fireplace installation,  
consult the local authorities to obtain your  
buildingpermitandcheckyourlocalbuilding  
codes. Installthereplaceonlyasdescribed  
in these instructions and using only Lennox  
Hearth Products components.  
• This fireplace has been tested for CAN/ULC  
S610-M87 and ANSI/UL 127 under report  
number 307-4084. It has also been tested  
for EPA 40 C.F.R Part 60, section 60.532(b).  
Certificate number 537.  
The Montecito fireplace is NOT intended  
for use with a gas log set. Do not use a  
fireplace insert or any other product with  
thisreplaceunlessitisspecifiedbyLennox  
for use with this appliance. Failure to follow  
these instructions will void the certification  
and the warranty of the fireplace and may  
result in an unsafe installation.  
• These appliances are designed to provide  
supplemental heat to the immediate area  
only. Therefore, it is advisable to have an  
alternate heat source when installed in a  
dwelling.  
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Do not burn scrap or garbage, treated wood or  
wood such as driftwood from the ocean which  
has been exposed to salt or other chemicals.  
Salt or chemicals can corrode the firebox and  
chimney. Do not burn large amounts of paper,  
cardboard,Christmastreebranchesorbuilding  
constructionmaterials. Intenseringwiththese  
materials may overheat the fireplace, causing  
damage to the unit, a fire or even possibly ignit-  
ing a chimney fire if the chimney is creosoted.  
Burningunapprovedfuel,resultinginexcessive  
pollutantsbeingemitted,maybeprohibitedand  
subjecttoaneorotherpenaltybytheauthority  
having jurisdiction in your area.  
Processed firelogs can be used. Use only fire-  
logsthathavebeenevaluatedfortheapplication  
of fireplace and refer to firelog warnings and  
caution markings on packaging prior to use.  
PARTS REqUIRED  
Fireplace Model MONTE  
• 6” diameter chimney - Model ASHT+,  
S-2100+, HT6000+, HT6103+ or AC manu-  
facturedbySecurityChimneysInternational  
only, including:  
First Fires  
Beforeusingthereplacemakesuretoremove  
the plastic wrapping and EPA label on plated  
door. Remove any glue residue left by the  
label using mild soap.  
- Chimney lengths  
- Elbows (where necessary)  
- Associated components as per these  
installation instructions  
The first five or six fires should be small fires of  
short duration (about 30 to 60 minutes). This  
will help cure the refractory bricks. During the  
first few fires of this appliance there may be  
some odor and smoke due to the curing of the  
paint, dust accumulation and burning off of  
lubricants used in the manufacturing process.  
Itmaysetoffasmokealarmlocatedinthesame  
room. For this reason the room should be well  
ventilated for the first few fires.  
..Decorative Door - Required  
....(Order Separately - See Page 20)  
Front Facade kit - Required  
...(Order Separately - See Page 20)  
UZY5 blower (included in the fireplace).  
VRUW Blower Speed Control (included)  
Outside air kit (Included w/Fireplace)  
OPTIONAL EqUIPMENT  
• Additional Equipment (optional)  
- Forced Air Kit  
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- AC Chimney Adaptor  
(required if using AC Chimney)  
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the left side. The main source of air (primary  
air) entering the firebox can be diminished by  
moving the air combustion control from left  
to right. The primary air is fully opened when  
the air control is completely moved to the left.  
The air control device can also be used to add  
an extra boost of air especially during fire start  
up and reloading of the unit.  
For instance, a long chimney will necessitate  
closing the damper more. To obtain the proper  
combustion,closethedampercompletely,then  
open it about 1/4” to 1/2”. Three medium size  
pieces of wood should be burning on a bed of  
hotcoals.Theheatoutputwillbeapproximately  
30,000 BTU per hour and the loading time will  
be about every 3-4 hours. Softwoods may be  
burned using this method but the time will be  
substantially reduced.  
WARNING  
Becarefuladdingwoodfueltothe  
fireorhandlingreplacetoolssuch  
as shovels, tongs or pokers.  
WARNING  
Pullingtheaircombustioncontrolwillinducean  
airboostatthebaseofthereallowinganeasier  
fire start up. When the fire is well established,  
the control can be pushed in to shut down the  
air boost allowing for a longer burn time. The  
combustion air control should be in the closed  
position (primary air and air boost) when the  
fireplace is not in use. This will minimize air  
leakage up the chimney. The combustion air  
control should be opened before opening the  
door to minimize the possibility of back draft  
coming into the room.  
The bottom refractory can be  
crackedbyexcessiveabusesuch  
as tossing heavy logs onto the  
grate or gouging with fireplace  
tools. Exercise caution when  
adding wood to your fireplace.  
Slow Combustion  
When the air combustion control is completely  
closed,thereplaceisinaslowcombustionphase.  
If the hearth is hot enough, slow combustion will  
not extinguish the fire, but there will be a notice-  
able change in the flame pattern. The flames will  
be slow and may appear dirty if the wood is too  
wet (moisture content of 20% and more). Do not  
allow the wood to burn without flame, since this  
will produce excessive creosote in the unit.  
Building a Fire  
(starting and maintaining a fire)  
Tostartare,placeseveralcrumpledupballsof  
newspaperintherebox. Placesmalldrypieces  
ofkindlingontopofthepaper,criss-crossingthe  
kindling so that there are air spaces in between.  
Keep the fuel far back enough so that air can  
get underneath. Open the air controls fully  
and light the newspaper. Once the newspaper  
and the kindling is well ignited, close the door.  
Once the kindling fire is well established, cord  
wood can be added (see Primary Air Combus-  
tion Control section for proper operation of the  
air controls).  
Accelerated Combustion  
Creosote may accumulate on the glass door.  
This method of burning should be used only  
after operating the Montecito fireplace with  
the air control opened to produce a hot fire for  
about an hour or at medium pace for at least  
three (3) hours. Slow combustion can be used  
at night in order to reduce the heat output and  
to prolong the burn. The loading time will be  
between 6-8 hours.  
The maximum heat output for the Montecito  
fireplace is achieved by burning with the door  
closed and the combustion air opened and  
pulled out. By this method, the Montecito  
fireplace can produce up to 55,000 BTU of  
heat per hour. However, it will be necessary  
to reload with wood every one or two hours.  
This is the least efficient method of burning the  
Montecito fireplace.  
REFUELING FOR BEST PERFORMANCE  
The Montecito fireplace will operate best if at-  
tention is given to operating the unit with the  
damper fully opened after refueling in order  
to bring the firebox and the chimney system  
up to their optimum operating temperature.  
Combustion efficiency is relative to firebox  
temperature. A temperature of 500º C (932º F)  
and up, with a visible flame, in the upper part  
of the firebox indicates a maximum efficiency.  
To obtain this temperature, the fireplace must  
be operated with the primary air and air boost  
controls fully opened during 10 to 20 minutes  
after reloading, depending on the heat and on  
the moisture content of the wood.  
The unit will burn best with 2-3 pieces of cord  
wood spaced 1 to 2 inches apart and allowing air  
to get under the fuel. Criss-crossing or arrang-  
ing the fuel so that air can get underneath, will  
help the fire to get started easily. The unit should  
be operated with the air control fully open long  
enough to get the cord wood well ignited.  
Use caution when firing with the combustion  
air control wide open. Only burn cord wood in  
this manner. Small dry pieces of softwood and  
constructionscrapswillburnveryintenselyus-  
ing this method and may damage the firebox.  
Medium Combustion  
COMBUSTION CONTROLS  
This is the recommended mode of operating  
the Montecito fireplace and should be the one  
normally used since it will deposit the least  
amount of creosote on the glass and in the  
chimney. The combustion air control must be  
3/4 closed and pushed in to close the air boost.  
The precise setting will depend on many fac-  
tors,includingchimneylengthandthemoisture  
content of the wood.  
Primary Air and Air Boost Controls  
ThereisnouedamperintheMontecitowood  
burning fireplace. As is common with air tight  
stoves, thecombustionaircontrolsetstheow  
of air entering the firebox. This allows for a  
more precise control of the fire. The combus-  
tion air control is located below the door on  
Onceyouhavereachedthedesiredtemperature,  
the air boost can be closed and the primary air  
set to a medium setting. You know you have  
reached the desired temperature when, closing  
the primary air control, you can see a flame  
at the top of the firebox. The benefit of this  
techniquewillbecleanerglass,lesscreosoting,  
greater efficiency and the most pleasing fire for  
your enjoyment.  
Push to Close  
Air Boost  
SMOKING –  
Pull to Open  
Air Boost  
CAUSES AND TROUBLESHOOTING  
Toreducethelikelihoodofsmokingwhenopen-  
ing the door, set the combustion air controls to  
the left before opening the door. Your fireplace  
hasbeendesignedandtestedtoprovidesmoke  
free operation. Occasionally, there may be a  
smallamountofsmokinguponlightingthere,  
until the chimney heats up but this should not  
continue. If the fireplace continues to smoke it  
is probably for one of the following reasons:  
Close  
Open  
Combustion Air Register  
Figure 1  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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A. Negativepressureinthehouse-Asthere  
burns, air goes up the chimney. This air  
must be replaced through leakage into the  
houseorthroughtheoutsideairduct. When  
operating the Montecito fireplace, open a  
nearbywindowtemporarilytocheckifthere  
is adequate replacement air supply.  
B. Fans operating (e.g.: range hood) - These  
fans draw air out of the house and may  
actually cause a negative pressure in the  
house. Turn off all fans and open a nearby  
window to determine if this is the cause of  
the problem.  
C. Wetwood-Wetortarredwoodwillsmoulder  
and smoke instead of burn properly. Your  
dealer can help you determine if you have  
properly seasoned wood for burning.  
D. Dirty or blocked chimney - Check to make  
sure the chimney is clear and clean. If dirty  
call a certified chimney sweep or use a  
properly sized chimney brush to clean.  
E. Chimney not long enough - The minimum  
chimney height is twelve (12) feet (3.7 m)  
not including the fireplace height. The  
chimney must extend at least three (3) feet  
(915 mm) above its point of contact with  
the roof and at least two (2) feet (610 mm)  
higher than any roof or wall within ten (10)  
feet(3m)ofit. Wheninstalledwithoffsets,  
theminimumchimneyheightisfteen(15)  
feet(4.6m). Additionalheightwillincrease  
draft and will decrease the tendency to  
smoke.  
F. Poor chimney draft - With no fire, there  
shouldbesufficientdrafttoexhaustcigarette  
smokeintroducedunderthebaffle. Chimneys  
installed against an outside wall without  
protectionmaygeneratebackdraftproblems  
which will cause start-up problems. To  
prevent this, open a nearby window, roll up  
a piece of paper and light it. Then, hold it in  
the upper part of the firebox to warm up the  
chimney. Wait until the draft is sufficient,  
then start the fire.  
G. Donotburndriftwoodwhichhasbeeninthe  
ocean or salt water. The salt will corrode  
the firebox and chimney.  
Dealing With a Chimney Fire  
Regular chimney maintenance and inspection  
canpreventchimneyres. Ifyouhaveachimney  
fire, follow these steps:  
1. Closethereplacedoorandthecombustion  
air controls.  
2. Alert your family of the possible danger.  
3. If you require assistance, alert your fire  
department.  
4. If possible, use a dry chemical fire extin-  
guisher, baking soda or sand to control the  
fire. Do not use water as it may cause a  
dangerous steam explosion.  
5. Check outside to ensure that sparks and hot  
embers coming out of the chimney are not  
igniting the roof.  
6. Do not use the fireplace again until your  
chimney and fireplace have been inspected  
by a qualified chimney sweep or a Fire  
Department Inspector.  
H. Do not burn wood in the area in front of the  
grate.  
I. Do not allow the wood to smoulder or burn  
without flame, since this will produce  
excessive creosote in the unit as well as  
increased particulate emissions.  
J. Blower for forced air kit operating - Make  
surethattheblowerisattheoffpositionwhen  
you open the fireplace door for reloading.  
MAINTAINING YOUR FIREPLACE  
Creosote - Formation and Need for Removal  
When wood is burned slowly, it produces tar  
and other organic vapors, which combine  
with expelled moisture to form creosote. The  
creosote vapors condense in the relatively  
cool chimney flue of a slow-burning fire. As  
a result, creosote residue accumulates on the  
flue lining. When ignited this creosote makes  
an extremely hot fire.  
Top Baffle Removal Prior to Cleaning The  
Chimney  
The chimney shall be inspected at least twice  
a year during the heating season to determine  
when a creosote buildup has occurred.  
Before starting to clean your chimney, we  
recommend that you remove the top baffle to  
avoid creosote dust collection at the top of the  
baffle. Follow these steps to set the top baffle  
out of the way:  
When creosote has accumulated it shall be  
removed to reduce the risk of a chimney fire.  
1. Remove the side refractory holder. They are  
located at the top of the refractory.  
When the creosote accumulation is large, a  
creosote fire in the chimney can damage the  
chimney and overheat the surrounding wood  
framing. Creosote formation in a chimney can  
be minimized by making sure there is always  
visible flame burning, avoid smouldering fires  
and by proper refuelling techniques.  
2. Lift the front baffle.  
3. Slide the back baffle under the front baffle.  
You now have access to the chimney.  
Chimney Maintenance  
Regular chimney inspection and maintenance  
combined with proper operation will prevent  
chimneyres.Keepyourchimneyclean. Donot  
allow more than 1/16” (1.6 mm) creosote build  
upinyourchimney. Theamountofcreosotewill  
depend on variables such as frequency of use  
and type of fire. We recommend that you:  
A. Initially inspect the chimney system weekly.  
From this, you will learn how often it will be  
necessary to clean your chimney.  
B. Have your chimney cleaned by a qualified  
chimney sweep. If you wish to clean it  
yourself, werecommendusingastiffplastic  
or non-metallic brush. If a metal brush is  
used, its size should be slightly smaller than  
the flue to avoid damaging the chimney. Do  
notuseabrushthatwillscratchthestainless  
steel interior of the chimney.  
IMPORTANT CAUTIONS  
A. Do not block the hot air vents to the fire-  
place as this will cause the fireplace to  
overheat.  
B. Never use gasoline, gasoline-type lantern  
fuel, kerosene, charcoal lighter fluid, or  
similar liquids to start or ‘freshen up’ a fire  
inthisreplace. Keepallsuchliquidswell  
away from the fireplace while it is in use.  
C. Do not burn coal. The sulphur in coal will  
corrode the firebox and chimney.  
Figure 2A - Top Baffle Removal  
D. Keep combustible materials at least 48”  
(1.2m)awayfromthefrontofthereplace  
opening.  
E. Never leave children unattended when  
there is a fire burning in the fireplace.  
F. Do not use the fireplace as an incinerator  
to burn paper, cardboard or construction  
material such as pressed wood, plywood  
or lumber. Use only untreated wood.  
Wood protectors, metallic paper, coal,  
plastic, waste, beach wood, Christmas  
tree, sulphur and/or oil will damage the  
fireplace.  
C. Do not expect chemical cleaners to keep  
your chimney clean. The rain cap can be  
removed for inspection and/or cleaning of  
the chimney.  
Caution: It is necessary to remove the baffle  
from the top of the firebox before cleaning the  
chimney. See “Top Baffle Removal Prior To  
Chimney Sweep.”  
Figure 2B - Top Baffle Removal  
Finish Door Casing Care  
Use a glass cleaner and a soft cloth to polish  
the casing. Do not use abrasives such as steel  
wool, steel pads or an abrasive polish for they  
may scratch the casing’s finish.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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DISPOSING OF ASHES  
Note:Forbetterperformances,werecommend  
leaving 1/2 inch of ashes in the firebox.  
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Remove ashes only when the fire is out and  
the ashes are cold (24 to 48 hours after the  
fire is out).  
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Do not leave the ashes in the house as they give  
off carbon monoxide and other toxic gases.  
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WARNING  
1. Front Refractories  
2. Bottom Refractory  
3. Left Side Refractory  
4. Right Side Refractory  
5. Back Refractory  
DisposalofAshes: Ashesshould  
be placed in a metal container  
withatightttinglid. Theclosed  
container of ashes should be  
placedonanon-combustibleoor  
or on the ground well away from  
allcombustiblematerials,pend-  
ing final disposal. If the ashes  
are disposed of by burial in soil  
or otherwise locally dispersed,  
they should be retained in the  
closedcontaineruntilallcinders  
have thoroughly cooled.  
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6. Front Ceramic Baffle  
7. Rear Ceramic Baffle  
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2
Figure 3  
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DOOR INSTALLATION  
The door must be installed only when the installation of the Montecito™ fireplace is completed.  
All you have to do is fit the male part of the hinge, already on the door, to the female part, which  
is on the fireplace. To remove the door, simply pull the door up from the hinges (see Figure 4).  
The door adjustment has been set at the factory. If the fit is still not perfect, you can adjust the  
door using the hinge screws.  
DOOR ADJUSTMENT  
The door may need to be adjusted to be completely airtight. The gaskets’ air-tightness can be  
adjusted using the adjustment screw located on the right side of the fireplace facade (An Allen key  
#1/8 – not supplied - will be necessary for this adjustment).  
REFRACTORY REPLACEMENT  
The intense heat of the fire will normally cause  
hairline cracks in the refractory. These cracks  
canbeminimizedbypropercuringasdescribed  
in “First Fires”. They will not normally dimin-  
ish the effectiveness of the refractory. If large  
cracks develop, then the refractory should be  
replaced. To replace the refractory bricks, fol-  
low these steps:  
Checking Door Seal  
A one-inch strip of paper may be used to perform a test of the integrity of the door seal. Close  
the door on the paper in at least eight points. It is normal to feel only a slight amount of friction.  
The door gasket does not need to be “tight” in all areas, since a small amount of leakage is not  
hazardous or detrimental to the performance of your fireplace.  
1. Remove the front refractories  
WARNINGS  
2. Remove the bottom refractory  
3. Remove the left side refractory  
Use only a Lennox Hearth Products glass doors, specifically designed  
4. Remove the right side refractory  
5. Remove the back refractory  
for the Montecito fireplace.  
6. Remove the front ceramic baffle  
7. Remove the rear ceramic baffle  
The fireplace cannot be operated without door or firescreen. Consult  
your dealer to select the correct replacement door or firescreen.  
Important! To assure proper alignment of glass doors: Install this  
fireplace in a square and plumb condition, using shims as necessary  
at sides and/or bottom.  
To install the new refractories, follow the above  
steps in reverse.  
Hinges Adjustment  
Gasket Adjustment Screw  
Figure 5  
Figure 4  
Door Installation  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Facade Installation  
WARNING: THE HEARTH EXTEN-  
SION IS TO BE INSTALLED ONLY  
AS ILLUSTRATED.  
Fireplace  
Install the Facade per instructions provided in  
Facade Kit (ordered separately - see Page 20).  
The crack between the fireplace  
and the hearth extension must be  
sealed with a non-combustible  
material such as sand-cement  
grout.  
Framing, Facing And Mantel  
Safety Metal Strip  
The construction of the framing, facing, and  
mantel must be in accordance with the stan-  
dards and the following illustrations (Figures  
10 and 11):  
Hearth Extension  
Non-Combustible  
Finish Material  
A. Frame the fireplace using 2” x 3” or heavier  
lumber.  
B. WARNING: Combustible materials can-  
not be used in the space directly above  
the fireplace, except for the studs above  
the facade that support the facing and  
mantel. This area must remain empty  
for a height of 6’8” (2,032 mm) mea-  
sured from the base of the appliance.  
C. Frame the fireplace with vertical studs at the  
sides of the fireplace running from floor to  
ceiling (see Figure 8). If combustible facing  
is to be used, position the studs back, from  
the front edge of the fireplace (a space that  
is the thickness of the facing material, so  
thatthefacingcan beinstalledushwiththe  
fireplace facing). Frame headers between  
the vertical studs only as follows:  
1/2”  
13mm  
Floor  
Fireplace  
Elevated Fireplaces  
uElevated fireplace installations  
require a special “Z” Metal  
Safety Strips (field provided),  
inplaceofthesafetymetalstrip  
shown above. The safety strip  
should extend the full width of  
the fireplace. When more than  
onesafetystripisusedtheymust  
overlap by a minimum of 1”.  
Platform  
• Place 2” x 3” or 2” x 4” headers,  
only along the upper part of the front,  
side and back faces (some codes  
may require a 2” x 6” on an outside  
bearing wall). Do not put wood or  
any combustible material within the  
area above the fireplace except on the  
front facing.  
2”  
Figure 7A - Hearth Extension Requirements  
u
• Place headers only as required to sup-  
port the facing and mantel.  
D. WARNING: The fireplace must not be in  
contact with any insulation or loose fill-  
ing material. Cover the insulation with  
drywall panels around the fireplace.  
12”  
MAX  
Hearth Extension Requirements  
Area where wood  
Mantel can be  
installed  
The Brentwood fireplace may be installed  
directly on a combustible floor. The supplied  
safety metal strip must be positioned as fol-  
lows: One half under the front of the fireplace  
and the other half must extend on the floor  
over which the hearth extension will be built  
(see Figure 7A).  
Mantel  
* The safety metal strip must cover the entire  
width of the fireplace.  
42”  
(1067mm)  
Min.  
The combustible floor in front of the fireplace  
mustbecoveredwithanon-combustiblemate-  
rial (tile, marble, stone, etc). See Figures 7B.  
45 Deg.  
4”  
(102mm)  
17” Min.  
(432mm)  
Hearth  
Extension  
COLD CLIMATE INSTALLATIONS  
36”  
Climates where temperatures will fall below  
32° F (0° C).  
18”  
(914mm)  
Non-Combustible Material  
(457mm)  
Figure 7B  
The heating performance of the appliance will  
vary depending upon the level of insulation,  
house design, how the appliance is operated,  
etc.  
Also, the outside air inlet duct should be wrapped with noncombustible insulation to minimize  
the formation of condensation. Do not place insulation materials directly against the chimney  
sections. We recommend that you use the insulated wall radiation shield since it will maintain the  
home’s thermal barrier. AC chimney is NOT recommended in very cold climates (in areas with  
temperatures below 0°F (-18°C).  
If this fireplace is being installed in a cold  
climate, it is especially important to seal all  
cracks around the fireplace and wherever cold  
air could enter the room with noncombustible  
material.  
NOTE: DIAGRAMS and ILLUSTRATIONS ARE NOT TO SCALE.  
7
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Back Wall of Chase/Enclosure  
Including Finising Materials if any  
OUTSIDE CHASE  
FRAMING DIMENSIONS  
Fireplace Opening Width  
Corner Installation  
C
19-19/32”  
D
A
B
C
D
E
F
G
J
36-1/4”  
42”  
921 mm  
J
1067 mm  
* Zero Clearance  
F
From Back  
G
30-1/16” 764 mm  
Spacer to Wall  
13-1/2”  
77”  
343 mm  
1956 mm  
953 mm  
A
37-1/2”  
20-1/2”  
Rough Framing Face (Unfinished Shown)  
*24-1/2” 603 mm  
53-3/4” 1365 mm  
E
CombustiblematerialscanNOT  
beusedinthespacedirectly  
abovethereplace. Donotll  
thespaceabovethereplace  
withanymaterial(Exceptthe  
woodframing)  
K
L
8”  
1”  
203 mm  
25 mm  
2” x 3”  
Min.  
*
Total depth is 25 inches (635mm) including the  
back spacer minus 1/2 inch (13mm) for drywall  
to be flush with the facing.  
Header  
Plywood 1/2”  
Combustion Air Kit  
G
B
A
7’  
Min.  
B
Rough Framing Face  
Facing  
K
(dimension includes finish  
material inside framing, if any)  
Notes  
IMPORTANT  
Diagrams, illustrations and photo-  
graphs are not to scale – consult  
installation instructions. Product  
designs, materials, dimensions,  
specifications, colors and prices are  
subject to change or discontinuance  
without notice.  
The facade must be removable  
once installed. The facade is  
designed to overlap any facing  
material installed on the front of  
the fireplace. If thicker material  
is installed, use the facade as a  
templateandmakesureitcanbe  
easily removed for servicing.  
28-1/32”  
9-3/4”  
Allframingdimensionscalculatedfor  
1/2" dry wall at the fireplace face. If  
sheathing the chase or finishing with  
other thickness materials, calcula-  
tions will need to be made.  
1”  
10-3/8”  
13-15/16”  
24”  
*
The fireplace must not be in  
contact with any insulation or loose  
filling material. Cover the insulation  
with Drywall panels around the  
fireplace.  
22-19/32”  
1. Combustible material must be  
installed flush with the fireplace. It  
may not project in front of and on  
the fireplace (i.e. the steel facade of  
the fireplace) (Figure 12).  
2. Non-combustible materials such as  
brick,stoneorceramictilemayproj-  
ect in front of and onto the fireplace  
facing (Figure 13).  
42”  
36-1/16”  
12-1/4”  
17-3/4”  
3-3/4  
17-3/4”  
3-1/4”  
12-3/4  
15-1/2”  
6-3/4  
8-1/4”  
22-1/2”  
36”  
24”  
Figure 8 - Framing Dimensions  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
8
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Insulated Chase Construction  
Storm Collar  
Flashing  
Roof Support  
Attic Radiation  
Shield  
Floor  
Ceiling  
Wall  
NOTE: It is recommended that the  
chase walls and floor be insulated  
in the same manner, using the  
same insulation, as the rest of the  
building, below the attic.  
• Must have the same firestopping  
resistance as adjacent wall.  
• Must have the same insulation as  
adjacent ceiling.  
• Follow local rules regarding framing  
construction.  
Firestop  
6’ 8”  
(2 m)  
Min.  
Optional  
7’  
(2.1 m)  
Min.  
Insulation  
In Outside  
SEE NOTE  
Walls Of  
Chase  
8’  
(2.4 m)  
Level  
Solid  
Drywall or Any Rigid  
Material  
Continuous  
Surface  
Outside  
Base  
Insulation  
(Thermal Barrier)  
1/2” Plywood  
2” x 4”  
Figure 9  
Nailing Flanges  
Mantel and Facing  
(Side View)  
Fireplace Frame Section  
(Top View)  
Four nailing flanges are provided to secure the  
fireplace to the floor (see figure below). Bend  
the nailing flanges down so that each flange is  
flush with the floor, then using nails or screws,  
secure the fireplace to the floor (2 places each  
side). The heads of the screws or nails must  
be large enough to completely cover the holes  
in the nailing flanges.  
12”  
MAX  
Drywall  
2” X 3” Min.  
(51mm x 76mm)  
Mantel  
3
Spacer  
1
42” (1067mm)  
4
5
2
6
Rock Board  
or Other  
Fireplace Side  
Noncombustible  
Facing  
3
1
4
Unbend to floor  
and nail/screw  
Drywall  
7
2
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1. Fireplace  
Nailing Flange  
(2 places each side)  
2. Front of fireplace  
3. Wood frame (2” x 3” min)  
4. Drywall  
Rock Board  
or Other  
5. Tiles  
6. Rock board or other  
7. Brick  
Noncombustible  
Facing  
Mantel and Facing  
Figure 10  
The mantel must be installed at least 42”  
(1067 mm) above the base of the fireplace  
(Figure 11).  
Figure 11  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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HOT AIR DUCTING INSTALLATION  
Only non-combustible mate-  
rial should be superposed or  
projecting over the front of  
the fireplace.  
Frame  
The Montecito™ wood burning fireplace is  
approved for use with a Gravity kit (hot air  
ducting system).  
Grill  
Gravity Kit  
The gravity kit is designed for double hot air  
outlets and includes: (See Figure 14).  
- Two (2) telescopic lengths 8” I.D.  
- Two (2) 90º elbows 8” I.D.  
- Two (2) hot air outlet kits  
(grill and frames)  
WARNING: Both pipes of  
the double hot air outlet  
must be installed. Any oth-  
er installation may cause  
fire and void warranty.  
42”  
(1067mm)  
Min.  
- Two (2) adaptors  
See Gravity Kit Accessories Page 20.  
For safe installation, the gravity kit must meet  
the following requirements:  
Figure 12  
Minimum height* 68” (1,727 mm)  
Maximum length See Figure 14  
Figure 15  
Noncombustible Facing  
Drywall  
*
The height of the louver must be measured  
from the base of the Montecito fireplace to the  
middle point of the louver.  
When installing the double outlet system, the  
hotairoutletscanbeinstalledinthesameroom  
as the fireplace, or one or both of the outlets  
can be installed in adjacent or upper rooms.  
Installing the ducts at different elevations will  
tend to exhaust more heat out of the higher  
outlet (Figure 14).  
2” X 3” Min.  
Rock Board or Other  
Spacer  
Theonlyblowerthatcanbeusedwiththegravity  
kit is the one sold with the fireplace.  
To extend the double outlet system, it will be  
necessary to purchase two adjustable lengths  
(7B26ZL2A).  
WARNING: The outlet grills  
should not be installed fac-  
Outlet Grill  
ing upward through a floor.  
Danger of burns can result  
if grills in floor are stepped  
on.  
Figure 13  
10’  
(3.1m)  
Max.  
FIREPLACE BLOWER  
13” x 13”  
Outlet Grill  
The fireplace comes equipped with a heat acti-  
vated blower. It is located in the bottom of the  
fireplace, towards the back. It uses 120V and  
must be connected to the main electrical circuit  
byaqualifiedelectrician.Forconnection,usethe  
electrical box supplied with the unit located on  
the bottom right corner of the fireplace.  
(330mm x 330mm)  
10’ (3.1m)  
Max.  
If you wish to adjust the blower speed, the  
variable speed control (VRUW) provided must  
be installed in line with the wiring. Again, use  
a qualified electrician for installation.  
Maintain at least 6-1/2”  
(160mm)clearancefrom  
the outlet grill framing to  
a combustible ceiling,  
side wall or mantel.  
If the blower requires servicing,  
1- Remove the doors and decorative facade.  
2- Remove the screw located below the blower  
motor that holds it to the back of fireplace.  
3- Pull the blower out of the unit through the  
square hole located in the front bottom right  
corner.  
Figure 14  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
10  
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OUTSIDE AIR KIT  
It is mandatory to install an outside air connec-  
tion to the Montecito™ wood burning fireplace.  
Thefollowingcomponentsarerequiredandare  
included with the fireplace:  
Rain Cap  
Flashing Collar  
Flashing  
• Outside air kit (includes 40 inch flex that  
goes up to ten (10) feet long)  
• 4” Adaptor for fireplace connection  
Roof Support  
Attic Radiation Shield  
The outside air assembly must be installed ac-  
cording to the following requirements:  
6-1/2” Min.  
(165mm) to ceiling  
Outside Air Installation  
Firestop  
The outside air assembly may be installed ac-  
cording to the following requirements:  
A) Duct length should be kept to a minimum.  
Themaximumlengthofa4interiordiameter  
(100 mm) insulated flexible duct is twenty  
(20) feet (6.1 m). (See note below).  
B) The air intake register must not be installed  
more than ten (10) feet (3050 mm) above  
the base of the fireplace.  
68” Min.  
(1727mm)  
42” Min.  
(1067mm)  
Non-Combustible  
Facing  
C) The fresh air must come from outside the  
house. Theairintakemustnotdrawairfrom  
the attic, basement or garage.  
D) The air intake should be installed where  
it is not likely to be blocked by snow or  
exposed to extreme wind and away from  
automobile exhaust fumes, gas meters and  
other vents.  
E) Theductandregistermaybeinstalledabove  
or below floor level.  
Figure 17  
Make a 4-1/4” (110 mm) hole in the outside  
wall of the house at the chosen location. From  
outside,placetheoutsideairregisterinthehole  
(open side down) and fasten the register to the  
wall with screws as shown (see Figure 18).  
Slip the pipe into the insulated sleeve. Place  
the insulated pipe over the register tube and  
over the fireplace’s outside air connector (see  
Figure 19). At each end, carefully pull back the  
insulation and plastic cover exposing the flex-  
ible pipe. Using the aluminium tape provided,  
wrap the tape around the joint between the  
flexible pipe and the air inlets. Carefully push  
the insulation and plastic cover back over the  
pipe. Using aluminium tape, fasten the plastic  
cover in place.  
5. Whentraversingacombustiblewalloroor,  
a firestop must be installed at the wall or  
floor penetration. The hole size must be  
13” x 13” (330 mm x 330 mm)  
6. Do not connect the hot air ducts to a central  
heating system. Malfunction of the heating  
system’s blower will cause the fireplace to  
overheat. A furnace duct is only single wall  
and not double wall as is required for the  
Montecito fireplace hot air exhaust.  
7. Use only Lennox Hearth Products grills and  
components as described in this manual.  
Other grills or registers, for example, may  
be too restrictive and may overheat the  
fireplace or ceiling.  
8. Do not use insulated flexible ducts as they  
will overheat.  
9. Do not use tees or any other components  
than the ones specifically listed here.  
10.Never allow the ducting to pitch down as  
hot air will be trapped creating a fire hazard.  
Never route the ducting downwards.  
11.Thehotairoutletgrillsmustbeinstalledwith  
the louvers pointing downwards in order to  
prevent overheating adjacent ceilings.  
12.Always install the two outlet grills when  
using the double hot air outlet kit.  
The duct system must be installed respecting  
the following:  
1. Removetheplatesclosingupthe8dia.holes  
on top of the fireplace. Then, cut the insula-  
tion in order to obtain two 8” dia. openings.  
Fix the adaptors on the fireplace openings  
by turning clockwise (Figure 15).  
2. Maintain at least a 2” (50 mm) clearance  
between the ducts and any combustible  
material; the required hole size is 13” x 13”  
(330 mm x 330 mm).  
Exception #1: For the grills, the fram-  
ing can be 10-3/4” x 10-3/4” (275 mm  
x 275 mm) to provide the clearance as  
required by the integral spacers on the  
double outlet duct system.  
NOTE: We recommend not to exceed twenty  
(20) feet of 4” flexible pipe. If you require a  
longer length we recommend that you use a 5”  
diameter flexible pipe for the complete run up  
to thirty (30) feet and a 6” diameter pipe for a  
run of up to forty (40) feet.  
3. The maximum number of elbows in a run  
of duct is two.  
4. Maintainatleast6-1/2(160mm)clearance  
fromtheoutletgrillframingtoacombustible  
ceiling, side wall or mantel.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
11  
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5. All chimney installations must include at least one support. Re-  
ducing the amount of chimney weight on the fireplace will help avoid  
the noise created when the fireplace expands. This can be achieved  
by having the chimney supported by the supports. The maximum  
chimney length that can be supported by the fireplace is nine (9) feet  
(2.75 m) for S-2100+/HT6000+, twelve (12) feet (3.7 m) for ASHT+  
/ HT6103+ and 26 feet (8 m) for AC chimney.  
OUTSIDE CONNECTION  
Outside  
Intake  
Aluminum Tape  
Plastic Cover  
6. The chimney must extend at least three (3) feet (915 mm) above its point  
of contact with the roof and at least two (2) feet (610 mm) higher than  
any wall, roof or building within ten (10) feet (3m) of it (Figure 20).  
7. Ifthechimneyextendshigherthanve(5)feet(1,500mm)aboveitspoint  
of contact with the roof, it must be secured using a roof brace.  
8. A rain cap must be installed on top of the chimney. Failure to install  
a rain cap may cause corrosion problems.  
9. Cut and frame square holes in all floors, ceilings, and roof that the  
chimney will go through to provide a 2” (50 mm) clearance between  
the chimney and any combustible materials. Do not fill this 2” space  
with insulation or any other combustible material.  
Screw  
Insulation  
Flexible Pipe  
Opening  
Facing  
Down  
Aluminum Tape  
Wall  
10.Portions of the chimney which may extend through accessible spaces  
must be enclosed to avoid contact with combustible materials or  
damage to the chimney.  
Figure 18  
11.When offsets are used, the pipe may not penetrate a ceiling or floor  
unless it is running vertical (no 30° offsets).  
Fireplace  
Connection  
Aluminum Tape  
Fireplace  
Plastic  
Cover  
two (2) feet Min.  
three (3) feet Min.  
ten (10) feet  
Insulation  
Flexible Pipe  
Aluminum Tape  
Figure 19  
THE CHIMNEY SYSTEM  
Chimney Installation Notes  
1. If possible, install an interior chimney as it will provide better perfor-  
mance. In areas with continuous temperatures below -18° C (0° F),  
the use of an exterior chimney increases the likelihood of operating  
problems such as low draft, high rate of creosoting, and poor start-up  
characteristics. Exteriorchimneysarealsopronetodown-withdryand  
flow reversal. Installations, which are located on lower floors in the  
house, such as in a basement, in combination with outside chimney,  
are especially prone to flow reversal.  
2. The Lennox Hearth Products fireplace model MONTE may be installed  
only with Security Chimneys International 6” diameter chimney sys-  
tems.  
3. A chimney venting a fireplace shall not vent any other appliance.  
4. The minimum chimney height is twelve (12) feet (3.7 m). In altitude,  
add 18” (450 mm) to the chimney for every 2,000 feet (600 m) above  
sea level.  
Figure 20  
Note: 2" clearance to combustibles around chimney components re-  
quired.  
Note:Blownorlltypeinsulationmaterialsmustnotbeincontactwiththe  
fireplace or in the enclosure frame as described in ‘’Enclosure’’ section.  
Note: Local codes may not require firestopping at the ceiling levels for  
outside chase installations. However, it is recommended for safety and  
the reduction of heat loss.  
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CHIMNEY INSTALLATION  
INSTRUCTIONS  
Attic Radiation Shield  
Attic Radiation  
Shield  
ASHT / S2100  
HT6103+ / HT6000+  
Solid Packed Pipe  
1. Cut and frame the holes in the ceiling, floor  
and roof where the chimney will pass (see  
Figure 21). Use a plumb-bob to line up the  
center of the holes. The sizes are indicated  
in Table 2 for the floor and ceiling holes  
and Table 3 (Page 15) for the roof holes.  
Flashing  
Roof  
CHIMNEY MODEL  
SqUARE HOLE  
SIZE OPENING  
Mobile / Manufactured HomewithFlatRoof  
ASHT/S2100  
ASHT+ / HT6103+  
S-2100+ / HT6000+  
AC  
12-3/8” (314 mm)  
14-1/8” (359 mm)  
15 in (380 mm)  
Firestop  
HT6103+/HT6000+  
Figure 22b  
Figure 22a  
Note: See Table 3 for Sloped Roof Framing  
AC  
Attic Radiation  
Shield  
Attic Radiation  
Shield  
Air Cooled Pipe  
Table 2 - Flat Roof Framing  
Flashing  
Radiation Shield  
Mobile / Manufactured HomewithFlatRoof  
ACChimney  
Figure 22c  
Figure 22d  
Figure 21 - Roof Framing  
Rain Cap  
AC CHIMNEY INSTALLATION  
(AIR COOLED GALVANIZED CHIMNEY)  
Collar  
2. Frombelow, installarestopineachceiling/  
floor separation through which the chimney  
will pass. At the attic level, install an attic  
radiation shield from above (Figures 22a  
and 22b).  
Flashing  
3. ForASHT+/HT6103+andS2100+/HT6000+  
chimneys place the first chimney length on  
the fireplace. To lock it in place, turn 1/4 of  
a turn clockwise. With the AC chimney, you  
must use a starter section before installing  
the first chimney length (Figure 23). Con-  
tinueinstallingchimneylengthsmakingsure  
to lock each length in place.  
Attic Radiation  
Shield  
4. Every time the chimney passes through  
a ceiling or a wall, install the appropriate  
firestop. Whenyoureachthedesiredheight,  
installtheroofsupport(Refertoinstructions  
included with the support).  
Firestop  
Universal Support  
5. Then, put the roof flashing in place and seal  
the joint between the roof and the flashing  
with roofing pitch (see Figures 24 and 25).  
For sloping roofs, place the flashing under  
the upper shingles and on top of the lower  
shingles. Nail the flashing to the roof, using  
roofing nails.  
6. Place the spacers and the storm collar over  
the flashing, and tighten it with the bolt  
supplied. Finally, seal the joint between the  
stormcollarandthechimney, usingsilicone  
caulking.  
Chimney Outside  
Air Intake  
(required when  
u
using AC chimney)  
AC Starter Section  
Outside Combustion  
Air Kit  
7. Install the chimney cap. Once the chimney  
cap is in place, the roof flashing can be  
washed with a solvent or vinegar and then  
painted with rust-proof paint.  
Combustiblesarenotallowedbelowtopspacers  
abovethereplace.Facinginfrontofreplacemust  
be non-combustible below this area.  
u
Figure 23  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
13  
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After reaching the location requiring the  
elbow, proceed as follows:  
AC  
AirCooledChimney  
Chimney  
ASHT+ / HT6103+ / S-2100+ / HT6000+  
Chimneys  
Collar  
Spacer(built  
into flashing)  
1. Install the first elbow; turn it in the required  
direction. Fasten it to the chimney with  
the three (3) 1/2” (12 mm) metal screws  
provided with the elbow.  
2. Install the necessary chimney lengths to  
achievetherequiredoffset. Lockthechimney  
lengths together: it is recommended to use  
three (3) 1/2” (12 mm) screws. If the offset  
lengthismadeoftwo(2)chimneylengthsor  
more, use an offset or roof support halfway  
up the offset. If penetrating a wall, install  
a wall radiation shield (see Figures 27 and  
29).  
Flashing  
Figure 24  
Figure 25  
3. Use another elbow to turn the chimney  
vertically. Secure the elbow, using three  
(3) 1/2” (12 mm) screws (provided with the  
elbow).  
4. Use a plumb-bob to line up the center of  
the hole. Cut a hole for the chimney in the  
ceiling/floor. Frame this hole as described  
previously (refer to section Chimney Instal-  
lation Instructions).  
5. From below, install a firestop (See Figure  
22a).  
6. A support (ST or SO) must be used on the  
first 15’ section (5 m).  
Roof Down Slope Hole Size  
SLOPE  
RoofPitch  
0*  
ASHT+ / HT6103+  
6”  
S-2100+ / HT6000+  
6”  
AC  
6”  
12-3/8” (314 mm)  
12-9/16” (319 mm)  
13” (330 mm)  
14-1/8” (359 mm)  
14-3/8” (365 mm)  
14-7/8” (378 mm)  
15-3/4” (400 mm)  
17” (432 mm)  
15” (380 mm)  
15 3/8” (390 mm)  
16 1/8” (410 mm)  
16 7/8” (430 mm)  
18 1/4” (465 mm)  
19 5/8” (500 mm)  
2/12  
4/12  
6/12  
13-7/8” (352 mm)  
14-7/8” (378 mm)  
16-1/8” (410 mm)  
8/12  
10/12  
18-3/8” (467 mm)  
7. Continue with the regular installation.  
12/12  
17-1/2” (445 mm)  
20” (508 mm)  
21 3/8” (545 mm)  
* CrossSlopeHoleSize  
AC Chimney  
Putthechimneycapinto place.  
Washtheroofashingwith a solvent or vinegar, then paint it with rust-proof paint.  
1. Install the first elbow. Turn it in the required  
direction. To lock it in place, turn 1/8 of a  
turn. Fastenthestrapsattachedtotheelbow  
to the surrounding frame, using nails or  
drywall screws (see Figure 27).  
2. Install the necessary chimney lengths to  
achievetherequiredoffset. Lockthechimney  
lengths together. If penetrating a wall, use  
a wall radiation shield.  
3. Use another elbow to turn the chimney  
vertically. Lock it to the chimney. Fasten  
the straps attached to the elbow to the  
surrounding framing using nails or drywall  
screws.  
Table 3  
OFFSET CHIMNEY INSTALLATION  
After reaching the location requiring the elbow, proceed as follows. The minimum chimney height  
when using elbows is:  
Minimum Chimney Height Using Elbows  
Fireplace Model  
Chimney Model  
MONTE  
ASHT+ / S2100+ / HT6103+ / HT6000+ / AC  
12 feet (3.66 m)  
Vertical installation  
4. Use a plumb-bob to line up the center of the  
hole. Cutaholeforthechimneyintheceiling.  
Frame this hole as described previously.  
5. From below, install a firestop (see Figure  
22c).  
Two (2) elbows  
Four (4) elbows  
Table 4  
15 feet (4.57 m)  
17 feet (5.18 m)  
6. Continue with the regular installation.  
Note: When using AC chimney, an AC6SB  
starter section must be used before install-  
ing an elbow. When an offset is needed  
immediately off the top of the fireplace, an  
elbow starter section, AC6SB30 (H3780), is  
available.  
Notes:  
Must return to vertical before penetrating ceiling or floor.  
A maximum of 2 offsets are allowed.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Offset Dimensions  
B
Total Height  
A
Horizontal Offset  
Chimney Elbow Offset &  
One Length Between Elbows  
Two Lengths Between Elbows  
8” & 48” 12” & 48” 18” & 48” 24” & 48” 36” & 48” 48” & 48”  
6”  
Height  
8”  
12”  
18”  
24”  
36”  
48”  
3-5/16”  
4-5/16”  
5-7/8”  
7-7/16”  
10-1/2”  
13-5/8”  
(346mm)  
15-3/8”  
(391mm)  
16-7/16”  
(418mm)  
18”  
(457mm)  
19-1/2”  
(495mm)  
22-5/8”  
(575mm)  
25-3/4”  
(654mm)  
15º  
30º  
45º  
A
(84mm) (110mm) (149mm) (189mm) (267mm)  
15-11/16” 19-9/16” 25-3/8” 31-3/16” 42-3/4”  
(398mm) (497mm) (645mm) (792mm) (1086mm) (1381mm) (1548mm) (1646mm) (1792mm) (1940mm) (2210mm) (2529mm)  
54-3/8”  
60-15/16” 64-13/16”  
70-9/16”  
76-3/8”  
87”  
99-9/16”  
B
A
Secure  
Temp  
ASHT  
7-7/16”  
9-7/16”  
12-7/16”  
15-7/16”  
21-7/16”  
27-7/16”  
(697mm)  
30-13/16” 32-13/16” 35-13/16” 38-13/16” 44-13/16”  
(783mm)  
50-13/16”  
(189mm) (240mm) (316mm) (392mm) (545mm)  
(833mm)  
(910mm)  
(986mm) (1138mm) (1291mm)  
Nova  
Temp  
HT6103+  
20” 23-1/2” 28-11/16” 33-7/8” 44-1/4”  
(508mm) (597mm) (729mm) (860mm) (1124mm) (1389mm) (1538mm) (1627mm) (1759mm) (1891mm) (2154mm) (2419mm)  
54-11/16”  
60-9/16”  
64“  
69-1/4”  
74-7/16” 84-13/16” 95-1/4”  
B
A
10-5/16” 13-3/16”  
(262mm) (335mm) (441mm) (549mm) (765mm)  
17-3/8”  
21-5/8”  
30-1/8”  
38-5/8”  
(981mm)  
43-7/16”  
46-1/4”  
50-1/2”  
54-3/4”  
63-1/4”  
71-11/16”  
(113mm) (1175mm) (1283mm) (1391mm) (1607mm) (1818mm)  
17-13/16” 20-5/8” 24-7/8” 29-1/8” 37-5/8”  
(452mm) (524mm) (632mm) (740mm) (956mm) (1172mm) (1294mm) (1365mm) (1473mm) (1581mm) (1797mm) (2011mm)  
46-1/8”  
50-15/16” 53-3/4” 58” 62-1/4” 70-3/4” 79-3/16”  
B
Offset &  
Height  
One Length Between Elbows  
Two Lengths Between Elbows  
Chimney Elbow  
6”  
8”  
12”  
18”  
24”  
36”  
48”  
8” & 48” 12” & 48” 18&48” 24&48” 36& 48” 48” & 48”  
3-5/16”  
4-5/16”  
5-7/8”  
7-7/16”  
10-1/2”  
13-5/8”  
(346mm)  
15-1/2”  
(394mm)  
16-1/2”  
(419mm)  
18-1/16”  
(459mm)  
19-5/8”  
(498mm)  
22-3/4”  
(578mm)  
25-13/16”  
(656mm)  
15º  
A
(84mm) (110mm) (149mm) (189mm) (267mm)  
Secure  
Temp  
S2100+  
16” 19-7/8” 25-11/16” 31-1/2” 43-1/16”  
(406mm) (505mm) (652mm) (800mm) (1094mm) (1387mm) (1561mm) (1657mm) (1805mm) (1953mm) (2248mm) (2542mm)  
54-5/8”  
61-7/16”  
65-1/4”  
71-1/16”  
76-7/8”  
88-1/2”  
100-1/16”  
B
A
7-3/8”  
9-3/8”  
12-3/8”  
15-3/8”  
21-3/8”  
27-3/8”  
(695mm)  
30-7/8”  
(784mm)  
32-7/8”  
(835mm)  
35-7/8”  
(911mm)  
38-7/8”  
44-7/8”  
50-7/8”  
Nova Temp  
HT6000  
30º  
(187mm) (238mm) (314mm) (391mm) (543mm)  
(987mm) (1140mm) (1292mm)  
20-11/16” 24-3/16” 29-3/8” 34-9/16” 44-15/16”  
(525mm) (614mm) (746mm) (878mm) (1141mm) (1405mm) (1559mm) (1648mm) (1780mm) (1911mm) (2175mm) (2438mm)  
55-5/16”  
61-3/8”  
64-7/8”  
70-1/16”  
75-1/4” 35-5/8” 96”  
B
Chimney Elbow  
6”  
Offset &  
Height  
One Length Between Elbows  
Two Lengths Between Elbows  
---  
12”  
18”  
---  
36”  
48”  
---  
12” & 48”  
18” & 48”  
---  
36” & 48”  
48” & 48”  
----  
----  
4-13/16”  
(122 mm)  
6-1/8”  
(156 mm)  
----  
----  
11”  
(280 mm)  
14-1/8”  
(359 mm)  
----  
----  
16-7/8”  
(429 mm)  
18-7/16  
(468 mm)  
----  
----  
23”  
(584 mm)  
26-3/16”  
(665 mm)  
A
15”  
----  
----  
27-11/16”  
(703 mm)  
33-1/2”  
(851 mm)  
----  
50-7/8”  
62-1/2”  
(1588 mm)  
----  
72-5/8”  
78-7/16”  
----  
95-3/4”  
107-3/8”  
B
A
AC  
6”  
---- (1292 mm)  
---- (1845 mm) (1992 mm) ---- (2432 mm) (2727 mm)  
----  
----  
9-3/8”  
(238 mm)  
12-3/8”  
(314 mm)  
----  
----  
21-3/8”  
(543)  
27-3/8”  
(695 mm)  
----  
----  
32-5/8”  
(829 mm)  
35-5/8”  
(905 mm)  
----  
44-5/8”  
50-5/8”  
---- (1134 mm) (1286 mm)  
30”  
----  
----  
25-3/4”  
(654 mm)  
31”  
(787 mm)  
----  
46-1/2”  
57”  
(1448 mm)  
----  
66”  
71-1/4”  
---- 86-7/8” 97-1/4”  
B
---- (1181 mm)  
---- (1676 mm) (1810 mm) ---- (2207 mm) (2740 mm)  
NOTE: With the AC chimney, a starting length of 6” high must be used on top of the fireplace before installing an elbow.  
Figure 26  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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ANGLED WALL RADIATION SHIELD  
(RSM+ and RSMI30)  
OFFSET CHIMNEY INSTALLATION  
Chimney AC  
When traversing a combustible wall with the chimney at a 30º or 45º  
angle, an angled firestop or wall radiation shield must be installed. Only  
one is required.  
Note: 45º angle for Canada only (RSMI45)  
Support  
ACRS  
In cold climate locations (climates where temperatures will fall below 32°  
F / 0° C), we recommend that you use the insulated wall radiation shield  
since it will maintain the home’s thermal barrier.  
Starter Section  
Straps  
RSM+ and RSMI30  
(RSMI45 - Canada Only)  
Chimney Model  
Angle  
30º  
Hole Size  
Straps  
ASHT+ / HT6103+  
(6” dia). Canada only  
283 mm x 781 mm (11-1/8” x 30-3/4”)  
283 mm x 518 mm (11-1/8” x 20-3/8”)  
45º  
Note:Thisillustrationisnotto  
scale. It represents how the  
chimney must be supported.  
A 30 degree offset only is  
allowed in the USA and a 45  
degree maximum offset is  
allowed in Canada.  
S-2100+ / HT6000+ /  
AC (6” dia).  
30º  
30º  
327 mm x 881 mm (12-7/8” x 34-11/16”)  
380 mm x 972 mm (15” x 38-1/4”)  
Table 5  
Figure 27  
Insulated Wall  
OFFSET CHIMNEY INSTALLATION WITH WALL PENETRATION  
Rain Cap  
Collar  
Drywall  
Roof Flashing  
Offset Support  
Insulated Wall  
Radiation Shield  
Figure 29  
Framing  
2” x 3”  
Insulated Wall  
Radiation Shield  
Note: In cold areas it is recom-  
mended to protect the chimney in  
a insulated chase.  
Figure 28  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Ifpossible, youshouldchoosealocationwhere  
thechimneywillpassthroughthehousewithout  
cutting floor or roof joists (see fireplace dimen-  
sions Page 9).  
Gasket Replacement  
GLASS CARE  
Remove the door from the unit (see Page 6)  
and lay it on a clean unabrasive surface. To  
replace the gasket, first remove all of the old  
gasket and gasket cement. Make sure that the  
surface is totally clean before applying new  
cement (a high temperature silicone caulking  
ratedat500°F[260°C],issuitable)oradhesion  
problems may result. Apply gasket cement to  
the gasket channel and install the new gasket.  
This replacement part is available from your  
Lennox Hearth Products dealer in the following  
dimensions:  
Glass Replacement  
The glass used for the Montecito™ fireplace is  
a high temperature ceramic glass (1,400° F /  
760°C). Iftheglassbreaks, itmustbereplaced  
with an identical ceramic glass. Tempered  
glass or ordinary glass will not withstand the  
high temperatures of the Montecito fireplace.  
Replacementglassshouldbepurchasedfroma  
Lennox Hearth Products dealer (see “Replace-  
ment Parts”, Page 23). DO NOT OPERATE THE  
UNIT WITH CRACKED OR BROKEN GLASS.  
Usually, no additional floor support is needed  
for the fireplace. The adequacy of the floor  
can be checked by first estimating the weight  
of the fireplace system. Weights are given  
on Page 23. Note the floor construction and  
consult your local building code to determine  
if additional support is needed.  
The Montecito fireplace may be installed  
directly on the floor or on a raised base (for  
proper guidelines, refer to “Hearth Extension  
Requirements”) and a minimum of 6’8” (2 m)  
measured from the base of the appliance to the  
ceiling is required.  
Glass Cleaning  
Gasket Length Dimensions  
Steel Door  
Part No.  
The Montecito fireplace is designed to keep  
the glass clean under normal operating condi-  
tions. If the Montecito fireplace is operated  
continuously with the combustion air controls  
closed, the glass will tend to get dirty unless  
the fuel, firebox and glass are maintained at  
hot temperatures (see “Refueling For Best  
Performance”). To clean the glass, there are a  
number of specially designed cleaners. Your  
authorized Lennox Hearth Products dealer can  
recommendasuitablecleanerwhichisavailable  
in your area. Regular household glass cleaners  
will not clean creosote. Do not use abrasives  
such as steel pads, steel wool or oven cleaner  
as they will scratch the glass.  
Around  
Glass  
69  
(1753)  
1 x 3/16  
(25 x 4.8)  
PR-SR1685D  
PR-SR1823G  
On Door  
Frame  
73  
(1854)  
5/8 dia.  
(15.9)  
Whenselectingthelocation, thechimneyoutlet  
positionandthedirectionofthewindareimpor-  
tant factor affecting the chimney performance.  
To allow a maximum draft and to reduce wind  
turbulence, the chimney must:  
• Penetrate the highest part of the roof.  
• Beinstalledasfaraspossibleofroofoffsets,  
trees or any other obstructions that may  
cause wind turbulence and back drafts in  
the chimney.  
• The least amount of offsets (elbows) pos-  
sible.  
Cast Door  
Around  
Glass  
69  
(1753)  
1 x 5/16  
(25 x 4.8)  
PR-SR1823H  
PR-SR1823G  
On Door  
Frame  
73  
(1854)  
5/8 dia.  
(15.9)  
Table 1  
Inches (millimeters)  
DO NOT USE CHEMICAL GLASS CLEANERS  
ON PAINTED SURFACES AS IT MAY CAUSE  
THE PAINT TO PEEL.  
FIREPLACE INSTALLATION  
Locating The Montecito Fireplace  
The best location to install your fireplace is  
determined by considering the location of  
windows,doors,andthetrafficowintheroom  
where the fireplace is located, allowing space  
in front of the unit for the hearth extension and  
the mantel, and taking into consideration the  
location of the hot air ducts (optional), outside  
air kit and chimney.  
CAUTION:DONOTALLOWWINDOWCLEANER  
TO GET IN CONTACT WITH DOOR GASKET OR  
PAINT ON FACADE OR DOOR. ONCE CLOSED,  
CONTACT OF GLASS CLEANER WITH THE  
FIREPLACE FACADE CAN PROVOKE PAINT  
PEELING OFF.  
Location Recommended  
Marginal Location  
Wind Direction  
Location  
Not  
Recommended  
Location  
Not  
Recommended  
Outside Air Intake  
Facing the Wind  
Figure 6  
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CHIMNEY SUPPORT INSTALLATION  
Universal Roof Support  
18” (460 mm)  
16” (410 mm)  
18” (460 mm)  
16” (410 mm)  
This support has three possible uses:  
1. For ASHT+ / HT6103+ and S-2100+ / HT6000+, it must be used on a  
roof to support the chimney.  
2. It may be used on a floor, ceiling or roof above an offset to support  
the chimney above the offset.  
3. It may be used on a floor, ceiling or roof as a supplementary sup-  
port.  
18” (460 mm)  
Table 6 gives maximum height of supported chimney.  
NOTE: For the AC chimney, a support section must be used every forty  
(40) feet (12 m) instead of the universal roof support (ST).  
For roof support installation, refer to the instructions provided with the  
support.  
Figure 30  
UNIVERSAL OFFSET SUPPORT INSTALLATION  
CHIMNEY ADAPTOR (S-2100+ / HT6000+) CANADA ONLY  
This support is used to support the chimney above an offset. When  
the chimney offset is used to traverse a wall this support may be used  
on the wall to support the chimney. The maximum heights are given in  
Table 6. For offset support installation, refer to the instructions provided  
with the support.  
The fireplace is normally supplied with a chimney adaptor suitable for the  
ASHT+ / HT6103+ chimney. If you want to install a S-2100+ / HT6000+  
chimney, an adaptor is available (6UCA) (Figure 31). A separate starter  
section will also be required if AC chimney is installed.  
CHIMNEY MODEL  
MAXIMUM HEIGHT OF  
SUPPORTED CHIMNEY  
Chimney Adaptor -  
Canada only  
Offset Support  
Roof Support  
29 feet (8.84 m)  
20 feet (6.1 m)  
50 feet (15.20 m)  
ASHT+/HT6103+ (6dia).  
S-2100+/HT6000+ (6dia).  
AC (6dia).  
28 feet (8.54 m)  
18 feet (5.49 m)  
40 feet (12.19 m)  
Table 6  
CHIMNEY CHASE AND MULTIPLE TERMINATIONS  
For the purpose of this manual, a chimney chase is considered a part of  
the chimney system rather than part of a building. The termination must  
be placed a minimum of 18” (460 mm) above the chase.  
For installations where more than one chimney is located in the same  
chase or within the same area, we suggest that their terminations be  
separated by at least 16” (410 mm) horizontally, and 18” (460 mm) verti-  
cally. This separation is to prevent smoke migrating from one chimney  
to another (see Figure 30).  
Figure 31  
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Follow these steps:  
INSTALLATION INSTRUCTIONS FOR MASONRY APPLICATION  
1- Position the fireplace in its location. Temporarily install the ASHT+  
elbow on the top of the fireplace and, using a level, mark with an oval  
the location where the flue liner will enter the masonry chimney.  
2- In the middle of the oval, drill a hole in the masonry chimney at 30º.  
3- Increase the size of the hole until a 30º TUBINOX liner elbow can be  
easily slipped through.  
WARNING: Before starting the installation, the masonry chimney  
must be inspected by a qualified chimney sweep.  
The following requirements must be respected:  
1. The chimney must be absolutely clear of any soot residue or creosote.  
Check for cracks, loose or missing bricks that could inhibit correct  
installation of the liner.  
4- Slide the liner down from the top of the masonry chimney until you  
reach the hole level.  
2. The clearance to combustible must be a minimum of 1” between the  
outside of the masonry and any wood framing or loose insulation.  
3. The chimney must be built in accordance with the current building  
code.  
4. No other appliance can be connected to the same chimney.  
5. The clearances to combustible for these fireplace connectors are 2”  
on the side and bottom and 16” at the top.  
5- Slip through the hole a 30º liner elbow and connect it to the liner.  
6- Add a small liner section to the liner elbow which will allow the liner to  
extend at least 12” (measured at the top of the liner) from the masonry  
chimney.  
7- Seal the opening around the liner with high temperature refractory  
cement.  
8- The next steps must be done in the following order:  
6. The connector parts are not necessary if the connection between the  
insulatedlengthandthestainlesssteellinerisdonewithinthemasonry  
chimney.  
See typical installation illustrated below.  
A. Select the ASHT+ length that will fit between the elbow and the liner  
so that it will slide at least 2” over the liner section (You may need to  
cut the liner for a better fit).  
B. Take that section and the BISUMA30 cover and slide it over the liner.  
Make sure you have enough opening to be able to install the ASHT+  
elbow without difficulty.  
C. Install the 30º elbow on the fireplace.  
D. Slide the length section back down on the elbow and twist lock the  
two together.  
E. Pull the cover down over the length and install the insulation pad over  
the liner; be careful to cover the liner completely.  
F. Slide back the cover over the insulation and fix it in place using the 3  
metal screws supplied.  
Installation:  
The chimney must be relined with a stainless steel liner model TUBINOX  
or Projet SS of the same diameter as the outlet of the fireplace.  
For connection at a 30º angle, a special connector (BISUMA30) must be  
used to connect the liner to the insulated chimney.  
* IMPORTANT NOTE - The use of a 45º connector (BISUMA) is ap-  
proved for use in Canada ONLY. Installations in the USA must use the  
30º connector (BISUMA30).  
1” Clearance  
Firestop  
High-Temp.  
Cement  
Insulation Pad  
and Cover  
TUBINOX or Projet SS  
Stainless Steel Liner  
3 Screws  
TUBINOX or Projet SS  
Liner Must Slide at  
Least 2” Inside Length  
* Insulated  
30 Deg. Elbow  
ASHT+ or HT6103+  
Insulated  
Length  
6’ 8”  
Masonry Chimney,  
New or Existing  
Fireplace  
Figure 32  
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OPTIONAL INSTALLATION ACCESSORIES  
Installation Accessories  
Description  
Fireplace Kits  
Description  
Cat./ Part No.  
BUCEBWZN  
BISUMA30  
Cat./ Part No.  
Rigid firescreen  
Facades (Required - Order Separately)  
Masonry Chimney Adaptor, 30º, BISUMA30  
Montecito™ Facade Black, MFBK  
H4843  
H4844  
H4845  
(for use with TUBINOX liner)  
Montecito Facade Brushed Nickel, MFBN  
Montecito Facade Hammered Steel, MFMC  
Doors (Required - Order Separately)  
Montecito Door, Black, MCBK  
Central Forced Air Kit Accessories u  
Central Forced Air Kit, Central forced air kit including: blower  
(BISZY), flex adaptor (BISAF), 2 clamps, variable speed  
control (VRUW), thermo-disk (VTU), fan to flexible pipe  
adapter (BISAVF), back draft damper (BISBD), aluminium  
tape, BISFWK-1  
BISFWK-1  
H4846  
H4847  
H4848  
H0516  
H4849  
Montecito Door, Brushed Nickel, MCBN  
Montecito Door, Hammered Steel, MCMC  
EPA Wood, Cast Door, Black, BWBK  
Fireplace to Flex adaptor and 2 clamps, BISAF  
Flexible pipe 5” I.D. x 15 ft. Long, 5FLEX15  
Flexible pipe 5” I.D. x 30 ft. Long, 5FLEX25  
Blower 250 CFM for central forced air kit, BISZY  
BISAF  
5FLEX15  
5FLEX25  
BISZY  
EPA Wood, Cast Door, Brushed Nickel, BWBN  
Outside Air Kit (included with fireplace)  
Blower variable speed control with decorative wall plate for  
(BISZY), VRUW  
VRUW  
Outside Air Coupler To Connect Outside Air (UZI) To Fire-  
place, UZIAD  
UZIAD  
UZI  
Thermo-disk, on/off blower control (for BISZY), VTU  
Blower to flexible pipe adaptor, BISAVF  
Heating and cooling thermostat, 24V, HCTW  
Backdraft damper, BISBD  
VTU  
Outside Air Ducting - includes 4” insulated flex x 10’ long, UZI  
BISAVF  
HCTW  
BISBD  
Gravity Kit  
Complete double ducting system including: 2 elbows 90º, 2  
telescopic lengths, 2 grill supports and 2 black grills  
7B30ZK-1  
Gravity Kit Accessories  
Black grill with support, Part# 7B30ZO  
Brass grill (for 7B30ZK), 7B30ZGB  
Elbow 90º, 8” dia., 7B26ZE90  
Elbow 45º, 8” dia., 7B26ZE45  
Telescopic length, 8” dia., 7B26ZLA  
Adjustable length 8” dia (2” - 5”), 7B26ZL2A  
Wall Radiation shield, 7B26ZR  
Length five (5) feet, 8KL5  
7B30ZO  
7B30ZGB  
7B26ZE90  
7B26ZE45  
7B26ZLA  
7B26ZL2A  
7B26ZR  
8KL5  
uNot tested under EPA certification. If installed, this appliance no  
longer qualifies for EPA certification.  
* For installation, follow the instructions included with the Central  
Forced Air Kit.  
Length four (4) feet, 8KL4  
8KL4  
Length three (3) feet, 8KL3  
8KL3  
Length two (2) feet, 8KL2  
8KL2  
Length one (1) feet, 8KL1  
8KL1  
20  
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FireplaceModel MONTE-ApprovedVentingComponentsmanufactured  
by Security Chimneys International only.  
CHIMNEY - PARTS AND COMPONENTS LISTS  
Secure Temp ASHT 1” High Temp. Insulated Stainless Steel Chimney  
6” I.D. and 8” O.D., Double-Wall Stainl. Steel, Listed to CAN/UCL-S604 and UL-103HT  
6” diameter chimney - AC (air cooled), Secure Temp™ ASHT+ (or Nova  
Temp™ HT6103+) and Secure Temp S-2100+ (or Nova Temp HT6000+).  
6” diameter chimney for relining masonry chimneys - TUBINOX chimney (or  
PROJET SS), 6” diameter with adaptor for installation in a masonry chimney.  
Description  
Part/Cat. No.  
Lengths and Misc. Chimney Components  
8” length, 6” Dia., 6L8  
6L8  
6L12  
6L18  
6L24  
6L36  
6L48  
6LA  
12” length, 6” Dia., 6L12  
18” length, 6” Dia., 6L18  
24” length, 6” Dia., 6L24  
36” length, 6” Dia., 6L36  
48” length, 6” Dia., 6L48  
Adjustable Length 12”, 6” Dia., 6LA  
15º elbow, 6” Dia., 6E15  
30º elbow, 6” Dia., 6E30  
Rain Termination Cap, 6” Dia., 6CC  
Spark Arrester Screen (universal spark arrester band), PE  
Wall Band, BM  
Notes:  
jNova Temp HT6000+ is equivalent to Secure Temp S-2100+  
kNova Temp HT6103+ is equivalent to Secure Temp ASHT+  
lThis appliance is equipped with the ASHT Chimney Adaptor. When other  
chimney is used, a chimney adaptor for that chimney will be required.  
6E15  
6E30  
6CC  
mChimney Adaptor (S-2100+ / HT6000+) for CANADA ONLY - If you want to  
install a S-2100+ / HT6000+ chimney, an adaptor is available (6UCA).  
nAC Chimney is NOT recommended at elevations above 4,000 feet or in cold  
climates (climates where temperatures will fall below 32° F / 0° C). When  
using AC chimney, an AC6SB starter section must be used before installing  
an elbow. When an offset is needed immediately off the top of the fireplace,  
an elbow starter section, AC6SB30 (H3780), is available.  
PE  
BM  
Supports  
Offset Support, SO  
SO  
ST  
Roof Support, ST  
Roof Brace, BS2  
BS2  
Firestops  
Firestop, 6BF  
6BF  
6RS  
Radiation Shield, 6RS  
Insulated Attic Radiation Shield, 6RSA  
Insulated Wall Radiation Shield, 6RSM  
Insulated Wall Radiation Shield, 30º, 6RSMI30  
Uninsulated Wall Radiation Shield, 30º, 6RSM30  
Attic Radiation Shield  
6RSA2  
6RSM  
6RSMI30  
6RSM30  
H0487  
Roof Flashings  
Flat Roof Flashing, 6FR  
6FR  
6FAR  
6FBR  
6FC  
1/12 - 7/12 (5º - 30º), 6FAR  
8/12 - 12/12 (30º - 45º), 6FBR  
Storm Collar, 6FC  
21  
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CHIMNEY - PARTS AND COMPONENTS LISTS  
TUBINOX LL Chimney Lining System  
(AC) Air-Cooled Chimney System*  
6” I.D. and 11” O.D. Air Cooled, Stainl. Steel inner and zinc coated steel exterior  
Rigid Stainless Steel Liner For Relining A Masonry Chimney, 6” Diameter  
Listed to ULC-S635M, UL-1777 and ULC-S640M at 2100º F  
* AC Chimney is NOT recommended at elevations above 4,000 feet or in cold climates  
(climates where temperatures will fall below 32° F / 0° C).  
Description  
Cat./Part No.  
6” Length, 6” Dia., 6LL6  
6LL6  
6LL12  
6LL24  
6LL36  
6LL48  
6L7A  
6LT  
Description  
Cat./Part No.  
12” Length, 6” Dia., 6LL12  
One of the following adaptors is required  
if installing an AC chimney system  
24” Length, 6” Dia., 6LL24  
Starter Section (adaptor), 6”, AC, AC6SB  
Starter 30º Elbow, 6” AC, AC6SB30  
H3779  
H3780  
36” Length, 6” Dia., 6LL36  
48” Length, 6” Dia., 6LL48  
The following outside air kit is required if installing an AC chimney system  
Adjustable Length (7” to 11”), 6” Dia., 6L7A  
Split Base Tee, 6” Dia., 6LT  
Chimney Outside Air Kit (flex, insulation, outside register  
and coupling), ACZI  
H1967  
Tee Cap, 6” Dia., 6TCS  
6TCS  
6LTC  
Lengths and Misc. Chimney Components  
12” Length, 6” Dia. x 12” Long, AC6L12  
18” Length, 6” Dia. x 12” Long, AC6L18  
36” Length, 6” Dia. x 36” Long, AC6L36  
48” Length, 6” Dia. x 48” Long, AC6L48  
15º Elbow, 6” Dia., AC6E15  
Twist Lock Tee Cap, 6” Dia., 6LTC  
Elbow 30º, 6” Dia., 6LE30  
H0472  
H0473  
H0474  
H0475  
H0476  
H0477  
H0478  
PE  
6LE30  
6LE45  
6LE90  
6LCS  
6LCC  
Elbow 45º, 6” Dia., 6LE45  
Elbow 90º, 6” Dia., 6LE90  
Rain Termination Cap (regular), 6” Dia., 6LCS  
Rain Termination Cap (deluxe), 6” Dia., 6LCC  
Supports  
30º Elbow, 6” Dia., AC6E30  
Rain Termination Cap, 6” Dia., AC6CPR  
Spark Arrester Screen (universal spark arrester band), PE  
Wall Band, XBM  
Top Support, 6LST  
6LST  
6LSA  
Support Assembly, 6LSA  
XBM  
Interior Support, 6LSB  
6LSB  
Supports  
Adaptor Flexible Pipe (male), 6LAAM  
Adaptor Flexible Pipe (female), 6LAAF  
Stainless Steel Flex - five (5) feet Long, 6LLFLEX  
Adjustable Insulated Wall Radiation Shield 6” - 12”, 6LRSMI  
Adaptors to Masonry Chimney  
6LAAM  
6LAAF  
6LLFLEX  
6LRSMI  
Offset Support, SO  
SO  
H0481  
ST  
Support Section, AC6SL  
Roof Support, ST  
Roof Brace, BS2  
BS2  
Roof Flashings  
Masonry Chimney Adaptor, 45º, BISUMA  
(for use with TUBINOX liner) CANADA ONLY  
BISUMA  
Flat Roof Flashing, ACF  
H0494  
H0495  
H0496  
H0500  
1/12 - 7/12 (5º - 30º), AC Adj. Roof Flashing, FA  
8/12 - 12/12 (30º - 45º), AC Adj. Roof Flashing, FB  
Storm collar, ACFC  
Masonry Chimney Adaptor, 30º, BISUMA30  
(for use with TUBINOX liner)  
BISUMA30  
Misc.  
Telescopic attic radiation shield, ACRST  
Firestop, ACBF  
H0498  
H0485  
H0486  
H0487  
H0489  
Radiation Shield, ACRS  
Attic Radiation Shield, ACRSA  
Insulated Wall Radiation Shield, 30º, ACRSMI30  
22  
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REPLACEMENT PARTS LIST  
SPECIFICATIONS  
Montecito™ Replacement Parts  
Cat. No.  
Model  
Description  
Blower (heat activated on/off pre-wired), UZY5  
Blower motor speed control (wall mount), VRUW  
Snap Disc, Blower  
Part/Cat. No.  
UZY5  
H4841  
Montecito  
VRUW  
Product Reference Information  
Weight  
Height  
300 lbs  
36”  
VTU  
Baffle refractory (2 pieces)  
PR-ISO2205  
PR-SR2618  
PR-SR2619D  
Width  
36”  
Back refractory  
Depth  
24-1/2”  
Right side refractory  
Firebox W x H x D - measured in front  
Chimney Weight ASHT (6” dia)  
Chimney Weight AC (6” dia.)  
Chimney weight S-2100+ (6” dia.)  
22” x 11-3/4” x 12”  
6.25 lb/ft.  
3.25 lb/ft.  
10.8 lb/ft.  
Left side refractory  
PR-SR2619G  
PR-SR2201  
Bottom refractory  
Front refractory, right side  
Front refractory, left side  
Door handle  
PR-SR2202D  
PR-SR2202G  
PR-SR1787  
CLEARANCE TO COMBUSTIBLES  
Hinge Assembly, Fireplace and Door  
Decorative Screw Caps, Black (2)  
Decorative Screw Caps, Brushed Nickel (2)  
Ceramic glass panel  
PR-SR2395TCE  
PR-SACMEFBK  
PR-SACMEFBN  
PR-SR2222-1  
PR-SR2271  
The following clearances meet the minimum requirements for a safe  
installation;  
Side wall: 17” (324 mm) measured from the fireplace side  
Ceiling: 6’ 8” (2,032 mm) measured from the base of the fireplace  
Fireplace enclosure:  
Secondary air tube  
Cast-iron Log Retainer Supports - Grate (2)  
PR-SR2324  
PR-SR2323  
PR-SR1823H  
PR-SR1685D  
PR-SR1823G  
70K99  
Cast Iron Log Retainer Bar (w/Lennox Logo)  
Gasket Kit, Glass, 69” (1 x 5/16”) (steel and cast doors)  
Gasket Kit, Steel Door Frame, 73” (5/8” dia.)  
Gasket Kit, Cast Door Frame, 73” (5/8” dia.)  
Bottom: 0”  
Side: 0” to spacer  
Back: 0” to spacer  
Top: Do not fill the space above the fireplace with any material  
(Except the wood framing. See Page 9, Figure 8)  
Chimney: 2” (50 mm)  
Touch-up Paint, Aerosol, Black Metallic SBMB6309  
Touch-up Paint, Charcoal (for hammered steel facade)  
Coupler, Outside Air (connects UZI to fireplace)  
Coupler for AC Chimney (connects ACZI to fireplace)  
PR-P6201  
UZIAD  
Mantel: 42” (1067 mm) measured from the base of the fireplace.  
H3274  
Contact an Authorized Lennox Hearth Products dealer to obtain any of  
these parts. Never use substitute materials not approved by Lennox  
Hearth Products. Use of non-approved parts can result in poor perfor-  
mance and safety hazards.  
23  
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Normally, all parts should be ordered through your Lennox Hearth  
Products distributor or dealer. Parts will be shipped at prevailing prices  
at time of order.  
WARRANTY  
Your fireplace is covered by a limited warranty. Please read the warranty  
to be familiar with its coverage.  
When ordering repair parts, always give the following information:  
Retain this manual. File it with your other documents for future refer-  
ence.  
1. The model number of the appliance.  
2. The serial number of the appliance.  
3. The part number.  
4. The description of the part.  
5. The quantity required.  
PRODUCT REFERENCE INFORMATION  
We recommend that you record the following important information  
about your fireplace. Please contact your Lennox Hearth Products dealer  
for any questions or concerns. For the number of your nearest Lennox  
Hearth Products dealer, please call 1-800-9-LENNOX.  
6. The installation date of the appliance.  
If you encounter any problems or have any questions concerning the  
installation or application of this system, please contact your dealer.  
REPLACEMENT PARTS  
LENNOX HEARTH PRODUCTS  
1508 Elm Hill Pike, Suite 108  
Nashville, TN 37210  
See Page 23 for a complete replacement parts list. Use only parts sup-  
plied from the manufacturer.  
Your Fireplace's Model Number________________________________________  
Your Fireplace's Serial Number ________________________________________  
The Date On Which Your Fireplace Was Installed___________________________  
Your Dealer's Name _________________________________________________  
Your Dealer's Phone Number__________________________________________  
Lennox Hearth Products reserves the right to make changes at any time, without notice, in  
design, materials, specifications, prices and also to discontinue colors, styles and products.  
Consult your local distributor for fireplace code information.  
Printed in Canada © 2006 Lennox Hearth Products  
P/N 850,037M REV. K 05/2010  
24  
1508 Elm Hill Pike, suite 108 • Nashville, TN 37210  
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