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How to Properly Calibrate Your Thermostat


If your thermostat hasn’t been keeping your temperatures in your home at the proper degree, it could be a calibration issue. Whether you have a traditional or “smart” thermostat, you should give it a spot check from time to time.

Avoid costly energy bills and follow these tips on how to give your thermostat a proper calibration.  

Location, Location Location!

Whether you are “chilling out” or “turning up the heat,” the location of your thermostat is essential for correct calibration. Here are the two best rooms in which to place your thermostat:

  • Living room – Since the living room is one of the most used areas in a home, it makes for one of the best spaces for a thermostat.
  • Dining room – Dining rooms are often a great place for a thermostat as it’s usually located out of areas that are “hot spots” such as the kitchen or boiler room.

Even if you have your thermostat placed in the best location possible, ensure that it’s not covered by any obstacles such as bookshelves or entertainment centers. Check that it’s located on an interior wall and 5 feet from the floor. Thermostats should not be placed in drafty areas. For example, refrain from placing your thermostat near windows and doors. Do not put thermostats in direct sunlight as well.  Placing your thermostat in these areas can significantly throw off calibration and could cause you to incur higher energy bills.

Let’s Level With You

If you have an older model thermostat that uses a mercury-bulb, then the thermostat should be placed in a level position. An unlevel thermostat can cause the mercury bulb to lean into a tipped position. This can give an inaccurate reading which will not give off the proper heating or air conditioning needed to keep your home comfortable. If you have exhausted all possibilities in trouble shooting your thermostat for accurate calibration, then it may be time for an upgrade.

Keep it Clean!

If your thermostat is dirty or dusty, it could affect calibration. It’s best not to clean the thermostat yourself. Call a professional HVAC technician to help. Taking apart your thermostat device and using cleaners can harm the mechanics.

If your thermostat still isn’t working correctly after adequately setting calibration,  AAA Service can help! Call or schedule an appointment online for all of your HVAC needs!


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