The Weil-McLain WTGO is an oil-fired cast iron boiler with an efficiency rating of 85-87% AFUE. Select models of the WTGO are Energy Star qualified. It is available fully assembled or as a knockdown unit for smaller installation areas, while flue outlets on both the rear and top of the unit provide venting flexibility. A factory-wired circulator, service switch, pressure / temperature gauge and 30 PSI relief valve are included with the boiler. A quick open top and swing-away burner door help provide easy serviceability, and an insulated steel jacket helps provide quiet operation and optimal efficiency.
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