Everyone’s Home is Unique and Thornberry Bros Inc Has the Versatile Gas-Fired Steam Boiler For You. If you need a new gas-fired steam boiler (or for someone to repair your home’s steam boiler) in the Winchester neighborhood, Thornberry Bros Inc is here for you. We offer the Lennox® GSB8-E, which boasts a long list of benefits. GSB8-E BoilerThis steam boiler rises above its competition with an 82.7% AFUE rating* and noteworthy components like a cast-iron heat exchanger and titanium burners. For season after season of comfortable heat, look to the GSB8-E. Electronic ignition monitors water temperature and turns on the burner only when needed Vent damper bolsters efficiency by closing automatically when the boiler shuts 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 Big steam chest and multiple supply connections reduce 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 Thornberry Bros Inc in Winchester is ready to serve you with a new high efficiency boiler! Call us at 859-745-1564 or schedule 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.