Amazon.com: HydroTherm 85,000 BTU Natural Gas Residential ...
85,000 BTU Natural Gas Residential Boiler AFUE rating - 81.6%. Brushed Stainless Steel Thermally Insulated Jacket. Cast Iron Section that provides maximum heat transfer. Heavy duty, nickel-plated thermocouple; stainless steel damper; and stainless burner tubes. Electrical terminal strips are …
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