Reliable furnaces from Lennox provide long-lasting comfort and quiet operation. Choose a configuration to meet the needs of virtually any light commercial application.
| Model Description | Capacity Range (Btuh) |
Energy Efficiency AFUE |
LifeCycle Savings |
||
|---|---|---|---|---|---|
| G61MP 2 Stage | 44,000-132,000 | Up to 94.1% | $$$ | ||
| G60DF 2 Stage | 66,000-132,000 | Up to 80.0% | $$ | ||
| G60UH 2 Stage | 66,000-132,000 | Up to 80.0% | $$ | ||
| G51MP | 44,000-132,000 | Up to 92.5% | $$$ | ||
| G50UH | 44,000-154,000 | Up to 80.0% | $$ | ||
| G50DF | 44,000-54,000 | Up to 80.0% | $$ | ||
| G43UF | 44,000-132,000 | Up to 92.1% | $$$ | ||
| G40DF | 44,000-154,000 | Up to 80.0% | $$ | ||
| G40UH | 44,000-154,000 | Up to 80.0% | $$ | ||
indicates ENERGY STAR® qualified product
With Lennox unit heaters and duct furnaces, you’ll reduce installation time by eliminating roof penetrations and provide consistent comfort with steady heat. Choose from a range of capacities and energy-efficiency ratings.
| Model Description | Capacity Range (Btuh) |
Steady State Thermal Efficiency |
LifeCycle Savings |
||
|---|---|---|---|---|---|
| T-Class™ Separated Combustion Unit Heater | 45,000-300,000 | Up to 82.0% | $$ | ||
| LF24 Unit Heater | 30,000-400,000 | Up to 80.0% | $$ | ||
| LD24 Duct Furnace | 75,000-300,000 | Up to 80.0% | $$ | ||
indicates ENERGY STAR® qualified product
Due to Lennox' ongoing commitment to quality, all specifications, ratings, and dimensions are subject to change.