A Versatile Gas-Fired Steam Boiler For Your Unique Home. Tri County Air Care LLC in Dallas has an excellent gas-fired steam boiler to keep your home cozy and comfortable for years to come. The Lennox® GSB8-E provides remarkable benefits. Our experts are here 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 supply your home with cozy, comfortable warmth heating season after heating season. Electronic ignition controls water temperature and ignites the burner only when needed Vent damper increases efficiency by closing automatically when the boiler turns off Thick fiberglass insulation minimizes off-cycle heat and energy loss Burns natural gas or can convert to LP gas Compatible with traditional radiator and underfloor heating systems Electronic low water cut-off Large steam chest and multiple supply connections help eliminate noise Available in seven different sizes to fit your home’s individual 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 Tri County Air Care LLC at 469-213-8367 for all your boiler-related needs in the Collin County area. Or, set up 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.