What is the "return air"?
I was told by USSC after they reviewed pictures of my installation I need a "back draft damper" (which they have the picture showing is installed) and "return air"
What needs to be done to have "return air" and what does it do?
Manual says outside air is not required but "return air make-up IS required." Is that where the filter goes?
I thought I saw someone had made an enclosure on the filter box. Was that on this forum? If so can someone please direct me to it?
I was told by USSC after they reviewed pictures of my installation I need a "back draft damper" (which they have the picture showing is installed) and "return air"
What needs to be done to have "return air" and what does it do?
Manual says outside air is not required but "return air make-up IS required." Is that where the filter goes?
I thought I saw someone had made an enclosure on the filter box. Was that on this forum? If so can someone please direct me to it?