I'm mulling over installing one of those on my central HVAC system in the attic. (gotta go measure to see if there's enough room to stick this next to the furnace, but between the duct plenums.
It's a 4 ton system, and currently has (3) 14"x30" return grates, each with a 1" 3M filter on it.
My understanding is that 4" deep plated filters have less pressure drop, MORE surface area, and would require replacement only once a year.
I guess the only concern I have is filter availability, as 4" deep plated are not common to find in home stores, and I could end up with a proprietary size that can only be bought from a company like AprilAire.
Any experiences?
It's a 4 ton system, and currently has (3) 14"x30" return grates, each with a 1" 3M filter on it.
My understanding is that 4" deep plated filters have less pressure drop, MORE surface area, and would require replacement only once a year.
I guess the only concern I have is filter availability, as 4" deep plated are not common to find in home stores, and I could end up with a proprietary size that can only be bought from a company like AprilAire.
Any experiences?