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1. | A O Smith Water Heater BT180 100 Manualillc @Jc ~[illDv~ APPROVALRATINGSAND CERTIFICATION All models comply with ANSI Z21.10.3 CGA4.3 All models comply with ASHRAE/IES90.1 b-1992. C.E.C.California Energy Commission INDUCED DRAFT COMMERCIAL GAS TANKTYPE WATER HEATERS BT180-100 FEATURES 80% thermal efficiency and standby energy losses approximately one half of comparable standard atmospheric models INDUCED DRAFT BUILT-IN BLOWER - Blower comes factory mounted and wired to the top cover with 6 foot power cord. Ideal for inst... Brands:A | User Manual | ENGLISH | [View] | ||||||||||