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

If you’re looking for a new gas-fired steam boiler (or for an expert to maintain your existing steam boiler) in the Morton Grove neighborhood, iTemp Heating and Air Conditioning is here for you. We offer the Lennox® GSB8-E, which boasts a diverse menu of benefits.

GSB8-E Boiler

This steam boiler rises above its competition with an 82.7% AFUE rating* and notable components like a cast-iron heat exchanger and titanium burners. For years of comfortable heat, look to the GSB8-E.

  • Electronic ignition monitors water temperature and ignites the burner only when there is demand
  • 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 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 reduce noise
  • Available in seven different sizes to fit your home’s unique 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

iTemp Heating and Air Conditioning in Morton Grove is ready to serve you with a new high efficiency boiler! Call us at 773-704-0640 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.