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How Long Should My AC Unit Stay on During A Very Hot Day?
Wednesday, July 29, 2020
Tips to Avoid an HVAC Emergency This Summer

It’s summertime in the south, and it’s hot out. Thank goodness for air conditioning! But when it’s sweltering, should you worry that it runs too long? How long should your AC unit stay on during a very hot day? Ideally, your air conditioning unit should run approximately 15-20 minutes per cycle. This should be enough to cool your home without putting excess wear and tear on your HVAC equipment. Of course, that time depends on these factors:

  • The outside temperature during the day – as you can imagine, the hotter it is outside, the harder your AC has to work to get your house cool inside. That often means it has to run longer than usual.
  • The humidity – when the relative humidity in your home is where it should be – between 40 and 50% - your home will feel cooler. If your house is very humid, the AC will have to work harder and run longer.
  • Your thermostat setting – the colder you set your thermostat, the harder your air conditioner will work to get your house to the desired temperature. Raising the setting just a few degrees will help your system running less and more efficiently.
  • The condition of your HVAC system – if your system is well maintained, with regular annual service from a licensed HVAC technician, it will be more effective. Regular service will keep it running right, so it won’t have to run as long to keep your house cool.

Are you worried your air conditioner is running too long on hot days? The pros at G+S Heating Air Energy Services can help. Contact them today for a service call to make sure your system is working as it should.

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