Recent content by DIY_Dutch

The only rooms without returns are the bathrooms. Bedrooms all have two return grills in a hi low configuration. No change to performance with doors open or closed. Batt type fiberglass, R30. On the list of things to address. It’s installed poorly and nothing is air sealed up there.

I’ll look into capping it. The only reason I don’t think it’s make up air for the fireplace is the matching duct on the opposite side that is connected to the cold air return on the furnace. That seems like a good way to introduce carbon monoxide into the house. Even during the cooling season...

There are two supply registers and two return grills in the finished area of the basement. I wasn’t sure about your question about the possibility of a tall loop in the chase so I shoved my phone up there on the end of a broom and took a picture. The duct is about 48” straight with a 90 degree...

Bought a 1979 build in the suburbs of Chicago this past year. Lots of new things for me to fix/figure out but this one has me confused. Furnace & AC are carrier units from 2016. Seem to function well with the typical low airflow to the second floor issues. In the basement the mechanicals are...