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 current steam boiler) in the San Angelo neighborhood, Air-Dynamics Inc is here for you. We offer the Lennox® GSB8-E, which comes with a long list of benefits. GSB8-E BoilerThis steam boiler is superior to its competition with an 82.7% AFUE rating* and noteworthy components like a cast-iron heat exchanger and titanium burners. For season after season of comfortable heat, consider the GSB8-E. Electronic ignition monitors water temperature and turns on the burner only when there is demand Vent damper bolsters efficiency by closing automatically when the boiler shuts off Thick fiberglass insulation helps minimize off-cycle heat and energy loss Burns natural gas or convertible to LP gas Will work 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 Air-Dynamics Inc in San Angelo is is here to help you with a new high efficiency boiler! Call us at 325-655-2515 or create 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.