Heating duct airflow improvement
My DW has asked if I can improve the airflow in the trailer now that things are starting to cool off here in Michigan and we're using the furnace. The heating unit blows air well in the trailer and k...
Forum Discussion
I would go all 4" if you can. I added two 4" ducts to mine due to poor airflow causing the furnace to cycle on the high limit switch. More airflow can only be better IMO.
