A Versatile Gas-Fired Steam Boiler For Your Unique Home. Pinnacle HVAC LLC in Homer Glen has an excellent gas-fired steam boiler to keep your home warm and comfortable for years to come. The Lennox® GSB8-E comes with remarkable benefits. Our friendly staff is happy to install yours, or help you repair your home’s steam boiler. GSB8-E BoilerSetting it apart from other standard-efficiency boilers, this boiler earned an 82.7% AFUE* and features a cast-iron heat exchanger and titanium burners. The GSB8-E will deliver cozy, comfortable warmth for years to come. Electronic ignition monitors water temperature and ignites the burner only when needed Vent damper boosts efficiency by closing automatically when the boiler turns off Thick fiberglass insulation minimizes 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 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 Call Pinnacle HVAC LLC at 708-301-0170 for all your boiler-related needs in the Homer Glen 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.