Benefits of a Variable Speed Air Handler


Variable speed air handlers are not only quieter than conventional units, they are more efficient. Variable speed air handlers operate continuously at a wide range of speeds, whereas conventional single speed air handlers operate at only one speed and cycle on and off throughout the day. Variable speed air handlers provide more uniform heating and cooling because they constantly circulate the air in your home. This constant circulation also greatly reduces humidity levels during air conditioning season. Because the blower motor operates at lower speeds, it's quieter and consumes less energy.


  • Variable speed air handlers are more efficient. Since variable speed units typically operate at lower speeds than constant speed air handlers, they use less energy, and lower your heating and cooling bills. In fact, a typical variable speed unit uses 80 percent less electricity to run the fan than a similar constant speed blower.


  • Variable speed air handlers are quieter than constant speed units for two reasons: First, variable speed units don't cycle off and on continually, as with constant speed air handlers; this reducing both duct and fan noise. Second, the lower fan speeds of the variable speed units are inherently quieter than the higher speeds used in constant speed air handlers.

Uniform Temperatures

  • Variable speed air handlers provide more uniform heating and cooling. Variable speed units continually circulate the air in your home. This prevents uncomfortable hot spots and cold spots.

Remove Humidity

  • When used for air conditioning, variable speed air handlers are much more efficient at removing humidity from the air. This greatly increases comfort in summer months.

Cleaner Air

  • Variable speed systems can produce cleaner air. Because variable speed units constantly circulate and filter the air, the air in your home is cleaner.

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  • Photo Credit air conditioner, conditioning image by Greg Pickens from
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