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

Falls Mechanical Services LLC in Great Falls has the ideal gas-fired steam boiler to keep your home warm and comfortable year after year. The Lennox® GSB8-E provides remarkable benefits. Our friendly staff is ready to install yours, or help you fix your current steam boiler.

GSB8-E Boiler

Setting 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 controls water temperature and lights the burner only when needed
  • Vent damper bolsters efficiency by closing automatically when the boiler shuts off
  • Thick fiberglass insulation reduces off-cycle heat and energy loss
  • Burns natural gas or can convert to LP gas
  • Works with traditional radiator and underfloor heating systems
  • Electronic low water cut-off
  • Hefty steam chest and multiple supply connections help eliminate 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
GSB8-E Boiler
Efficiency Rating (AFUE): up to 82.7

Reach out to Falls Mechanical Services LLC at 406-761-SAVE for all your boiler-related needs in the Great Falls 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.