A Versatile Gas-Fired Steam Boiler For Your Unique Home. If you need a new gas-fired steam boiler (or for an expert to fix your existing steam boiler) in the Wharton community, Faust Air Conditioning and Heating is here for you. We sell the Lennox® GSB8-E, which features a diverse menu of benefits. GSB8-E BoilerThis steam boiler outshines its competition with an 82.7% AFUE rating* and notable components like a cast-iron heat exchanger and titanium burners. For many years of comfortable heat, consider the GSB8-E. Electronic ignition controls water temperature and lights the burner only when there is demand Vent damper boosts efficiency by closing automatically when the boiler turns off Thick fiberglass insulation helps minimize off-cycle heat and energy loss Burns natural gas or can be converted to LP gas Will work 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 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 Faust Air Conditioning and Heating in Wharton is is here to help you with a new high efficiency boiler! Call us at 979-532-2511 or set up an appointment online. *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.