A Versatile Gas-Fired Steam Boiler For Your Unique Home. Quality Refrigeration Services in Baltimore has an excellent 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 fix your existing steam boiler. GSB8-E BoilerA cast-iron heat exchanger, titanium burners, and an 82.7% AFUE* rating set this steam boiler apart from other standard-efficiency gas-fired steam boilers. The GSB8-E will supply your home with cozy, comfortable warmth for many, many years. Electronic ignition oversees water temperature and turns on the burner only when needed Vent damper increases efficiency by closing automatically when the boiler turns off Thick fiberglass insulation reduces off-cycle heat and energy loss Burns natural gas or convertible to LP gas Works with traditional radiator and underfloor heating systems Electronic low water cut-off Large steam chest and multiple supply connections reduce 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 Reach out to Quality Refrigeration Services at 410-690-4244 for all your boiler-related needs in the North-Central Maryland area. Or, set up 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.