Can you use multiple air filters?
Can You Stack Air Filters? Do not stack multiple smaller air filters on top of one another to fit them into a larger air handler. Installing multiple 1” air filters in a 2” slot, for example, can cause costly damage to your AC unit, as residential furnaces are not equipped to handle this level of airflow restriction.
Does my HVAC system have multiple filters?
Yes, your central air conditioner has a filter. In fact, most central AC units have two or more filters. These filters clean the air and ensure good air quality as your unit circulates between inside and outside air.
Are 4 in air filters better?
The 4-inch thick air filter has a definite advantage over the 1” filter in terms of longevity, airflow and maximum filtering potential. Thus, if it fits your furnace, then a 4-inch air filter is better than a 1-inch air filter in regards to improving air quality.
Can I put two air filters in house?
Bottom Line: Putting two air filters on a central air system will only have the net effect of producing a higher utility bill and reducing the lifespan of your central air unit. In short, the use of two air filters is just a BAD idea!
Do some furnaces have 2 filters?
Down Flow Furnace
Most furnaces will have a V shape filter system; the system will take 2 filters. The filters go up into the plenum in a V shape. Make sure that when you re-install the top door, it goes over the furnace frame so it engages the safety switch.
Why does my house have 2 air filters?
Not to worry! Most central air heating and cooling systems have 2 intake vents that help circulate your home’s air and clean out any debris by running it through an air filter.
Why does my HVAC have two filters?
A lot of central air units have at least two filters, though you can find systems that have only one. The reason why there are a couple of filters is because not only the air that is traveling into the air handler needs to be filtered, but also the air passing through the return vents.
