- #1
haynewp
- 88
- 0
I have 2 places to put air filters on my home system. One is a 16x20x1 at the wall intake and the other is 4ft up the same duct at the unit (16x25x1). The filter in the wall is a pain in the ass to change in comparison to the one at the unit. But, they are both usually dirty at 3 months so I have continued to replace both.
The repair man that came out recently told me I only needed one filter, either the wall or at the unit. Is this correct? I am worried about the trash that has been collecting on the second filter up line from the first just going into the unit. Or, could 2 filters be placed against each other at the unit or would this be extra strain on the unit having them directly up against one another?
The repair man that came out recently told me I only needed one filter, either the wall or at the unit. Is this correct? I am worried about the trash that has been collecting on the second filter up line from the first just going into the unit. Or, could 2 filters be placed against each other at the unit or would this be extra strain on the unit having them directly up against one another?