A Versatile Gas-Fired Steam Boiler For Your Unique Home. Freed Heating & Air Conditioning in Moline has an excellent gas-fired steam boiler to keep your home snug and comfortable year after year. The Lennox® GSB8-E comes with remarkable benefits. Our team is happy to install yours, or help you maintain your existing steam boiler. GSB8-E BoilerA cast-iron heat exchanger, titanium burners, and an 82.7% AFUE* rating set this steam boiler apart from other standard-efficiency gas-fired steam boilers. The GSB8-E will supply your home with cozy, comfortable warmth for years to come. Electronic ignition oversees water temperature and turns on the burner only when needed Vent damper boosts efficiency by closing automatically when the boiler is off Thick fiberglass insulation helps minimize off-cycle heat and energy loss Burns natural gas or can be converted to LP gas Compatible with traditional radiator and underfloor heating systems Electronic low water cut-off Hefty steam chest and multiple supply connections work to eliminate noise Available in seven different sizes to fit your home’s particular needs 12-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts Efficiency Rating (AFUE): up to 82.7 Product Brochure Contact Us to Learn More Contact Freed Heating & Air Conditioning at 309-323-9584 for all your boiler-related needs in the Rock Island County area. Or, create an appointment with our online scheduler. We look forward to serving you! *Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.