GSB8-187E, 82% AFUE, Gas-Fired Steam Boiler, 187,000
GSB8-E Boiler. Standard-efficiency, gas-fired steam boiler. Built with high-quality materials, including titanium burners and a cast iron heat exchanger, the GSB8-187E boiler quietly and efficiently supplies the home with cozy, comfortable warmth. 187,000 (54.8) 175,000 (51.3) Natural/Propane Gas - Input MBH (KW) Energy Efficiency
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