A Versatile Gas-Fired Steam Boiler For Your Unique Home. If you’re looking for a new gas-fired steam boiler (or for the right company to fix your current steam boiler) in the Northwest Tennessee area, McFadden Heating & Cooling is here to help. We offer the Lennox® GSB8-E, which comes with a vast array of benefits. GSB8-E BoilerThis steam boiler is superior to its competition with an 82.7% AFUE rating* and exceptional components like a cast-iron heat exchanger and titanium burners. For season after season of comfortable heat, look to the GSB8-E. Electronic ignition oversees water temperature and ignites the burner only when it needs to Vent damper boosts efficiency by closing automatically when the boiler shuts 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 Big steam chest and multiple supply connections reduce 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 McFadden Heating & Cooling in Dresden is always ready to help you with a new high efficiency boiler! Call us at 1-866-781-0111 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.