We regularly get questions about filter replacement. Sometimes it is from a new homeowner who is unfamiliar with the heating and air system at their new home. Occasionally, we’ve run across those who weren’t even aware there was a filter or that it needed to be replaced ((no judgment!))
Since we are rolling into allergy season here in Sacramento, it seemed like a great time to take a look at where your filter might be located on a forced air system.
Where is my HVAC filter located?
The most common locations would be:
- In the ceiling or wall behind a large metal return air filter grille (if you look directly into the grate or grille and see nothing but sheetmetal and a round duct, chances are this is not where your filter is located)
- This style typically has a hinge on one side and two knobs on the other (if it just has screws but you see a filter here, it could be a hassle. Reach out to us – we may have an easier solution for you.)
- A little trick for the ceiling style: when you go to put the new filter in, it can be awkward trying to swing the grate back into place while holding the filter in its spot. If you turn the thermostat fan to “on” it will turn the blower on and suck the filter right into place!
- Wall mounted are also common, especially if the furnace is in a closet.
- Next to, on top of, or beside the furnace or air handler
- This is where an “ez filter box” or full on air cleaner cabinet would be located.
- The easy filter boxes are nice because they are independent of the furnace itself and provide a latch and door that swing open to easily slide a 1” or 2” filter right inside.
- An air cleaner or pleated media cabinet is even better. Usually less maintenance and better filtration of pollen and other irritating particles.
- The front door panel comes off and the washable or disposable media is slid out.
- This is where an “ez filter box” or full on air cleaner cabinet would be located.
- Inside the actual furnace or air handler
- There may be instances if you have a furnace or air handler in a closet or garage where it is easily accessible. But you do have to open the front panel (hopefully there are latches or knobs) and remove or swing down to then slide a filter into a small track at the bottom of the blower.
Filter size is so important! You do not want to have a filter that is even slightly over or undersized. Gaps and bends will cause air to zip right past the filter and into the system.
Later this month we’ll get into the good, better, and best filtration solutions.
Still stumped? Feel free to call us at 916-481-0658 or email us here and we can set up A/C maintenance!