A Versatile Gas-Fired Steam Boiler For Your Unique Home. Effective Service Group, LLC in East Hanover has the ideal gas-fired steam boiler to keep your home cozy and comfortable year after year. The Lennox® GSB8-E delivers remarkable benefits. Our team is here to install yours, or help you maintain your existing 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 provide cozy, comfortable warmth for years to come. Electronic ignition controls 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 convertible to LP gas Compatible with traditional radiator and underfloor heating systems Electronic low water cut-off Big steam chest and multiple supply connections help 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 Effective Service Group, LLC at 973-245-9707 for all your boiler-related needs in the New York City 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.