A Versatile Gas-Fired Steam Boiler For Your Unique Home.

O'Brien Heating & Air Conditioning in the Main Line has an excellent gas-fired steam boiler to keep your home warm and comfortable for years to come. The Lennox® GSB8-E provides remarkable benefits. Our team is ready to install yours, or help you repair your existing 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 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 boosts efficiency by closing automatically when the boiler shuts off
  • Thick fiberglass insulation minimizes off-cycle heat and energy loss
  • Burns natural gas or can convert to LP gas
  • Will work with traditional radiator and underfloor heating systems
  • Electronic low water cut-off
  • Hefty 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
GSB8-E Boiler
Efficiency Rating (AFUE): up to 82.7

Contact O'Brien Heating & Air Conditioning at 610-626-2540 for all your boiler-related needs in the the Main Line 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.