A Versatile Gas-Fired Steam Boiler For Your Unique Home. Farnell Heating & Air Conditioning Inc in Mobile has an excellent gas-fired steam boiler to keep your home snug and comfortable for years to come. The Lennox® GSB8-E comes with exceptional benefits. Our team is ready to install yours, or help you maintain your existing steam boiler. GSB8-E BoilerThis boiler is superior to other standard-efficiency boilers with it’s 82.7% AFUE* rating, cast-iron heat exchanger and titanium burners. The GSB8-E will provide cozy, comfortable warmth heating season after heating season. Electronic ignition controls water temperature and ignites the burner only when needed Vent damper boosts efficiency by closing automatically when the boiler shuts off Thick fiberglass insulation minimizes off-cycle heat and energy loss Burns natural gas or can convert to LP gas Works with traditional radiator and underfloor heating systems Electronic low water cut-off Big steam chest and multiple supply connections reduce noise Available in seven different sizes to fit your home’s unique 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 Farnell Heating & Air Conditioning Inc at 251-471-2674 for all your boiler-related needs in the Mobile 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.