2021 3540 GK-R Heat duct

[FreddieD]

Does anyone know that the 2" round duct supply's heat to? I am adding insulation to the basement and ran across this.. Lots of direct paths to the outside in the bottom of it.. Adding 2 filters to the heat return as well.

[Second Chance]

Could you post a photo? I'm not sure which duct you're talking about. There is a small duct going to the rear from the basement that terminates underneath the kitchen area to keep those water lines thawed.

Be very careful adding filters. These RV furnaces are not made to use them and they can restrict airflow.

Rob

[FreddieD]

Thanks, I plan on having a lot more filter spaces to try and keep the restriction down. The 2"Runs in the underbelly along with a 6" one as well, I assume that goes to the island.

[FreddieD]

I also noticed it "T"s and a 4 " goes up as well?