A Versatile Gas-Fired Steam Boiler For Your Unique Home. When you’re shopping for a new gas-fired steam boiler (or for an expert to maintain your home’s steam boiler) in the Manassas Park area, Woody's Sudden Service Inc is here for you. We sell 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 many years of comfortable heat, consider the GSB8-E. Electronic ignition controls water temperature and turns on the burner only when it needs to Vent damper boosts efficiency by closing automatically when the boiler is off Thick fiberglass insulation helps minimize off-cycle heat and energy loss Burns natural gas or can convert to LP gas Works with traditional radiator and underfloor heating systems Electronic low water cut-off Hefty steam chest and multiple supply connections work to 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 Woody's Sudden Service Inc in Manassas Park is ready to serve you with a new high efficiency boiler! Call us at 703-369-5528 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.