Enter your zip to
find local pros.

Lennox Air Conditioners

Compare the top HVAC brands below.
Where do you need the heating and cooling expert?
Please enter a valid zip code

Free quotes. No obligation.

Lennox HVAC Brand Review

Lennox HVAC systems

Lennox HVAC is a long-standing company opened in 1895 by Dave Lennox. Since then, it’s been in business offering central heating, ventilation, refrigeration and air conditioning to the world. The company specializes in highly efficient cooling and heating units, and makes some of the most efficient products sold today.

Lennox Air Conditioner Prices

Lennox central ac units are offered in the Merit, the Elite and the Dave Lennox Signature Collection series. They range from 14 SEER (Seasonal Energy Efficiency Ratio) down in the Merit series, to up to 26 SEER in the Signature collection.

The average cost to install a Lennox AC unit is between $2,500 to $4,200. Your total AC unit installations costs will largely depend on the size needed for your home. For a 1,600 square foot home you would most likely need a 2.5 ton air conditioner. That size unit would be able to efficiently cool and heat your home. See below for a list of other HVAC brand prices. Talk to a local contractor today to get exact prices for your new AC unit installation.

Air Conditioner Brands:Average Unit Cost:SEER Rating:
American Standard$3,65616.8

Lennox AC Unit Installers Near You 

Find trusted Lennox heating and cooling contractors in your area. Use the zip box below to find AC replacement and repair contractors installing the top HVAC brands such as Lennox in your neighborhood. Review contractor’s profiles, reviews and ratings, and find the most reliable local air conditioning installers.

Our contractors serve multiple cities and states and may have a listed physical address in their profile different from your current location. No worries, we will always connect you with pros serving your exact location.

What Size Lennox AC Unit Do I Need? 

When calculating what size Lennox air conditioner you will need installed. You’ll want to consider your home’s square footage and what kind of cooling capacity you’ll want. An air conditioner  can cool up to 400 square feet per 1 ton of air conditioning capacity. See the chart below for average costs of HVAC units by TONS

Central Air Conditioner SizeAC Unit BTUAC Unit Only 
1.5 Tons18,000 BTU$2,000
2 Tons24,000 BTU$2,620
2.5 Tons30000 BTU$2,895
3 Tons36000 BTU$2,920
3.5 Tons42000 BTU$3,550
4 Tons48000 BTU$3,650
5 Tons60000 BTU$3,690
Ready to start
your project?

hvac unit size cost

Lennox Furnaces

Lennox furnaces are split into three different levels. There is the Merit, the Elite and the Dave Lennox Signature Collection. Each is highly efficient, but the Dave Lennox Signature offers a 98.7 percent efficiency with its highest model.

The most common option for a furnace replacement is a natural gas furnace. The cost of a standard efficiency natural gas furnace ranges from $2,325 to $3,900. Depending on the brand and energy efficiency level of your new gas furnace, your total installation cost may vary. See our list below of average furnace installation costs by brands:

Best Gas Furnace BrandsAverage Furnace CostAverage Total Installation Cost
Average Gas Furnace Prices:$1,226 $3,115
American Standard$1,250$3,820

Lennox Heat Pumps

As with the other products, the Lennox heat pumps are available in three series, the Merit the Elite and the David Lennox Signature. The Merit series is the loudest and reaches an HSPF (Heating Seasonal Performance Factor) of 7.7. The Elite offers an HSPF of 10 and the Signature goes up to 10.2 while being quieter than either of the other two series models.

The average heat pump installation can cost between $1,425 to $4,400 depending on the unit’s SEER rating. A single zone heat pump could cost as little as $550. See a full list of heat pump brands below with associated heat pump unit costs.

Heat Pump BrandsSEER RatingUnit Price
Aire-Flo14$950 to $1,500
Airtemp16$1,000 to $1,675
Amana15 - 18$1,250 to $3,200
American Standard14$1,285 to $3,995
Ameristar14$1,055 to $1,450
Armstrong Air14 - 20$1,165 to $3,700
Armstrong and Ducane15 - 20$1,100 to $3,175
Bryant14 - 20$1,255 to $4,275
Carrier14 - 20$1,350 to $4,265
Coleman13 - 20$1,100 to $3,675
Daikin HVAC15 - 18$1,150 to $3,150
Day & Night14 - 19$1,135 to $3,925
DiamondAir14 - 15$900 to $1,760
Ducane14 - 20$1,150 to $3,150
Goodman15 - 18$1,150 to $3,500
Heil14 - 19$1,135 to $3,925
Lennox16 - 23$1,425 to $4,400
Luxaire13 - 20$1,200 to $3,675
Maytag15 - 19$1,245 to $3,720
Payne14 - 17$1,075 to $3,050
Rheem14$1,200 to $3,750
Ruud14$1,200 to $3,750
Tempstar14 - 19$1,135 to $3,925
Trane14$1,285 to $3,995
York13 - 20$1,250 to $3,675

Lennox Packaged HVAC Units

Packaged units are a Lennox HVAC product that puts all the main cooling components into one compact package. These AC units are small and allow you to effectively cool your home without taking up much space to do it.

Lennox Warranty Info

Lennox offers a highly comprehensive warranty on any of the top-end Dave Lennox Signature Collection products. Those products get component and compressor coverage for 10 years and heat exchanger coverage for 20 years. When using the Elite series coverage drops to 5 years for components, 10 years for the compressor and remains at 20 years for a heat exchanger. Finally, the Merit series products get 5 years of coverage for both components and compressors and 20 years is provided for the heat exchanger.

Variable Heating and Cooling

There aren’t many cooling and heating technologies that can both cool and heat a space at the same time. While that normally isn’t something a business or a homeowner would want to do, in a very large space there are times when it would be beneficial to be able to cool some rooms while heating the rest.

Advanced Lennox systems come with variable speed blowers and adjustable burner controls to provide different levels of heating and cooling as needed. This lets residential equipment from Lennox operate in very strict heat ranges. While equipment from other companies might vary by as much as 3 degrees above or below the thermostat setting, Lennox equipment generally stays within a single degree of the set temperature thanks to the highly flexible technology.

It’s always smart to get price quotes from at least four pre screened and licensed HVAC contractors before starting your project in order to get the best price.

Let Modernize help you do that in a few easy steps:

5 different types of lennox hvac systems.


Lennox VRF Technology

Lennox is one of the few manufacturers that offers Variable Refrigerant Flow (VRF) Technology. This is a new way to heat large spaces that should be very appealing to business owners with big buildings to take heat. The system pipes heat through refrigerant around the office from one central unit. The refrigerant travels through narrow pipes that take up much less space than traditional ductwork does.

Energy Efficient Units

VRF makes it possible to heat some areas of the building more than others so smaller rooms can receive less heat than the larger ones and sections of the building that aren’t occupied can be kept at a lower temperature and save the business money. It’s simple to keep expenses down when using this technology because only the desired level of heat is delivered to each section of a building.

Lennox Night Mode

Many of Lennox’s heating and cooling units for commercial use, come with an Energy-Smart Night Mode. The units will reduce their speeds at night to boost efficiency levels and save the company money over time. This is an excellent option for companies that don’t have workers there at night.

We’ve also compiled a list of the other best central AC Brands & Units here:

Ready to get free quotes from local contractors?