What to Know about Your Air Filters and Thermostat


The air filter and thermostat are two major components responsible for helping your HVAC system run as efficiently as possible — they’re also two of the easiest things to maintain on your own. Here’s what you need to know:

Air Filter 101

Most manufacturers recommend replacing your filter every one to three months — and checking your air filters once each month is a good habit to develop. There are several factors that affect how quickly they can get dirty, so keeping an eye on them makes it easy to tell when it’s time for a change.

How to Change an Air Filter
  1. Check to see what size filter you will need
    Look in your owner’s manual or on the side of your existing air filter. Most replacement filters can be bought at your local hardware store or home improvement center.
  2. Turn off the unit

    For safety reasons, you want to make sure that you have turned your unit off before attempting to replace the filter. If you cannot figure out how to turn off the unit yourself, you should turn off the breaker.
  3. Remove the old filter
    Most air filters are located on the right side of the unit. The filter should easily pull out of its slot in the furnace. While uncommon, some filters are found in air vents in your home. If this is the case, you may want to contact one of our Customer Service Representative to schedule an appointment for us to come out and change it.
  4. Insert new filter

    Simply slide the new filter into place. There are arrows on the new filter to indicate which the correct direction it should be inserted.
How to Change Batteries in the Thermostat
  1. Remove the wall thermostat housing
    If the housing won’t easily pull off its wall mount plate, slide the housing up on the wall mount plate and then pull it off.
  2. Turn the wall thermostat housing over to find the battery removal slots

    Pry the old batteries out (you may need a small flat head screwdriver to get them out).
  3. Slide the new batteries into the battery slots
  4. Replace the thermostat
    Set the thermostat housing onto the back wall plate with the pins on the back aligned with the terminal screw block. Slide it down to snap it back into place.

Need more help with your air filter or thermostat? Give us a call at 770-813-1316 or contact us online.