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1. | A O Smith Water Heater ACGSS00305 ManualCommercial Gas Water Heaters LOW-NOx POWERED-BURNER MODELS Conservationist (BTP and BTPV) commercial water heaters offer precise powered-burner performance for medium-demand commercial applications, plus the flexibility of conventional atmospheric venting, sidewall venting or direct venting. To help ensure optimum performance, A. O. Smith offers professional start-up service on BTP and BTPV models. VENTING OPTIONS BTP models designed for conventional atmospheric vertical venting. Baro... Brands:A | User Manual | ENGLISH | [View] | ||||||||||