Originally Posted by
Prashun Patel
Bill, I did, but they maintain that it's right. They contend that because it's in the return path, it does not require to be sealed; all it means is that some return air may come in from the furnace room. The argument seemed logical.
They were not, by the way, the cheapest option out there. I've used them for other work and they have been professional.
It seems logical, but-- . The dirty unfiltered air from your furnace room is drawn in on the sides and bottom thus unfiltered. I'd want it sealed. I'm not an hvac expert, but I'm not selling anything either.
I have to unscrew a cover that has a rubber gasket on mine. It's a hassle but it's airtight. I like that because my furnace room is my shop!
Furnace filter info gets so complicated. From thick filters that must slow down air flow (just like a dirty thin filter). That's hard on the system, but picks up more dust. For me a thin cheap filter changed or vacuumed every month or two works well.
Last edited by Andrew Joiner; 02-16-2018 at 3:03 PM.
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