small lennox logo

Lennox GWM-IE Water Boiler

Designed to maximize fuel savings, the GWM-IE boiler delivers up to 40% greater efficiency than conventional boilers.

  • Efficiency rating of up to 95% AFUE
  • Energy Star Qualified
  • Modulating capability allows burner to fire at a rate as low as 20% of its full capacity to perfectly match comfort needs
  • Electronic ignition control burns fuel only when necessary, reducing energy costs

Warranty: 15-year limited warranty on heat exchanger.
10-year limited warranty on remaining covered components

spacer
spacer
bottom-spacer

Lennox GWB9-IH Water Boiler

The Lennox GWB9-IH is a High-efficiency, gas-fired water boiler. It offers an AFUE rating of 90%, which means it converts a full 90% of your fuel into usable heat.

  • Efficiency rating of 90% AFUE
  • Energy Star Qualified
  • Cast-aluminum heat exchanger transfers heat up to three times faster than traditional cast-iron exchangers

Warranty: 15-year limited warranty on heat exchanger
10-year limited warranty on remaining covered components

spacer
spacer
bottom-spacer

Lennox GWB8-IE Water Boiler

The Lennox GWB8-IE water boiler is full of features that provide years of heating benefits, including a cast-iron heat exchanger and titanium burners.

  • Efficiency rating of 84.4% AFUE
  • Electronic ignition control burns fuel only as necessary, reducing energy costs
  • Cast iron heat exchanger designed for long-lasting durability
  • Sealed-combustion design—provides quiet, healthy and draft-free heating

Warranty: 20-year limited warranty on heat exchanger
1-year limited warranty on remaining covered parts

spacer
spacer
bottom-spacer