"The Elite® Series G51 gas furnace delivers efficient, quiet comfort."

Energy Efficiency
Up to 92.5% Heating Efficiency – High efficiency levels save you money versus standard efficiency furnaces.

Comfort Heating
The Lennox G51 gas furnace delivers outstanding comfort, year after year.

1. Secondary Heat Exchanger – Allows the furnace to reach high efficiency levels by capturing additional heat.

Quiet Operation
2. Insulated Blower Compartment – Reduces sound for quieter operation.

Reliable Performance
3. Duralok Plus® Heat Exchanger – Made of high-quality, patented ArmorTuf aluminized steel. Life-tested to 2-1/2 times agency requirements (ANSI Standard Z21.47) for long life and durability.

4. SureLight® Control Board – For reliable and efficient furnace operation.

SureLight Igniter – Made of silicon nitride, a rugged material that is much stronger than other hot-surface igniters.

5. Durable Steel Cabinet – Made to last, with an attractive, high-quality, textured paint finish.

We build to the highest standards.
We stand behind our warranties.
The G51 gas furnace is backed by a limited lifetime warranty on the heat
exchanger and a 5-year limited warranty on all remaining covered components.