A Versatile Gas-Fired Steam Boiler For Your Unique Home. Strine's Heating & A/C Inc in South Central PA has the perfect gas-fired steam boiler to keep your home cozy and comfortable for years to come. The Lennox® GSB8-E delivers exceptional benefits. Our friendly staff is here to install yours, or help you maintain your current steam boiler. GSB8-E Boiler This boiler is superior to other standard-efficiency boilers with it’s 82.7% AFUE* rating, cast-iron heat exchanger and titanium burners. The GSB8-E will deliver cozy, comfortable warmth for many, many years. Electronic ignition monitors water temperature and ignites the burner only when needed Vent damper increases 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 Large 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 Strine's Heating & A/C Inc at 717-755-4127 for all your boiler-related needs in the South Central PA 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.