A Versatile Gas-Fired Steam Boiler For Your Unique Home. Air Dynamics Inc in San Angelo has an excellent gas-fired steam boiler to keep your home snug and comfortable year after year. The Lennox® GSB8-E delivers remarkable benefits. Our experts are happy to install yours, or help you maintain your current steam boiler. GSB8-E BoilerSetting it apart from other standard-efficiency boilers, this boiler earned an 82.7% AFUE* and features a cast-iron heat exchanger and titanium burners. The GSB8-E will supply your home with cozy, comfortable warmth for years to come. Electronic ignition oversees water temperature and lights the burner only when needed Vent damper increases efficiency by closing automatically when the boiler shuts off Thick fiberglass insulation minimizes 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 Big 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 Air Dynamics Inc at 325-655-2515 for all your boiler-related needs in the San Angelo area. Or, schedule 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.