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1. | A O Smith Boiler DBDW 720 1810 ManualBuilt tough with maximum efficiency TM MODELS DB/DW-720-1810 NATURAL GAS-FIRED COMMERCIAL CROSS FLOW COPPER BOILERS FOR HYDRONIC HEATING AND HOT WATER SUPPLY WITH ELECTRONIC INTERMITTENT PILOT IGNITION AND INSTALLATIONS INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTY WA... Brands:A | User Manual | ENGLISH | [View] | ||||||||||
2. | A O Smith Boiler DW 1810 ManualCommercial Gas Boilers MODELS DW-720 UP TO 82% EFFICIENT HOT WATER SUPPLY BOILERS The Dura-Max series offers excellent performance and low-profile design flexibility for both new construction and retrofit applications. A double-row, integral-finned copper tube heat exchanger provides exceptional heat transfer efficiency. Each unit features a small footprint with a built-in draft diverter for extra clearance to simplify installation. Reliable, quiet, drawermounted stainless steel burners re... Brands:A | User Manual | ENGLISH | [View] | ||||||||||