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The following chart gives an overview of the main furnaces, and furnace types that LSM has available. Click on the underlined, blue text to get more information from the Lennox website. Use Lennox's Energy Calculator to calculate how much you can save with a high efficiency furnace. |
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TYPE OF FURNACE |
EFFICIENCY A.F.U.E. |
LOW SPEED CAPABILITY |
COMFORT STAGES/SPEEDS |
INSULATED BLOWER CABINET |
TYPE OF HEAT EXCHANGER |
HEAT EXCHANGER WARRANTY |
OTHER WARRANTY |
COMMENTS |
| Signature Collection G71PP Click here to see Special Price offer (combined with PureAir). |
95% ENERGY STAR® qualified |
Yes | Multi-stage, variable speed | Yes | Durolok plus, stainless steel secondary heat exchanger | Lifetime | 10-year limited parts | Best furnace with multi-stage heating (variable capacity gas valve - adjusts output in 1% increments), enclosed burner, and variable speed blower motor, (AC/DC) and variable speed, AC/DC combustion motor. Quietest, most efficient furnace with the highest comfort level. Uses less electricity. Better manufacturer's parts warranty. Can also be used with zone heating system. ENERGY STAR® qualified. |
| Elite Series G61MPV | 95% ENERGY STAR® qualified |
Yes | Two stage, variable speed | Yes | Durolok plus, stainless steel secondary heat exchanger | Lifetime | 5-year limited parts | Best furnace with two stage heating, enclosed burner, and variable speed blower motor (AC/DC). Uses less electricity. Quiet and efficient furnace with a high comfort level. Better manufacturer's parts warranty. Can also be used with zone heating system. ENERGY STAR® qualified. |
| Elite Series G61MP | 94.1% ENERGY STAR® qualified |
Yes | Two stage, two speeds | Yes | Durolok plus, stainless steel secondary heat exchanger | Lifetime | 5-year limited parts | Quieter than G51 with the two stage heating, an enclosed burner, and also has the highest comfort level. ENERGY STAR® qualified. |
| Elite Series G51MP | 92.1% ENERGY STAR® qualified |
Yes | Single stage, one speed | Yes | Durolok plus, stainless steel secondary heat exchanger | Lifetime | 5-year limited parts | Insulated blower cabinet for quieter operation, enclosed burner. ENERGY STAR® qualified. |
| Signature Collection G60UHV | 80% | Yes | Two stage, variable speed | Yes | Durolok | 20-year limited | 10-year limited parts | Quietest furnace on the market with two stage heating and variable speed motor control. Better manufacturer's parts warranty. |
| Elite Series G60UH | 80% | Yes | Two stage, two speeds | Yes | Durolok | 20-year limited | 5-year limited parts | Quieter than the G50 with two stage heating that improves comfort level. |
| Elite Series G50UH | 80% | Yes | Single stage, one speed | Yes | Durolok | 20-year limited | 5-year limited parts | Insulated blower cabinet for quieter operation, and choice of blower speeds. |
Accessories: Combine any of the above furnaces with a ComfortSense 7000 thermostat for whole house comfort (heating, cooling & humidity). If you have central air conditioning, it will automatically switch between heating and cooling as needed. It also reports on the outside temperature and will adjust your furnace-mounted humidifier on the colder days to prevent frosting and condensation on windows.