pnichols wrote:
JaxDad wrote:
Opening the rearmost roof vent completely and leaving the dash A/C on normal has been (informally) proven to be the most effective by far.
That introduces dust and dirt throughout the interior due to the constant flow of outside air from front to back within the RV.
We'd much rather keep everything closed up, use the cab A/C on recirculate to maximize use of the cab air conditioner's tremendous BTU capacity, and then move air around to the back of the coach area while traveling using one or two of these incredible 12 volt fans:
https://www.amazon.com/Fan-Tastic-Vent-01100WH-Endless-Breeze/dp/B0000AY2Z6/ref=lp_2591693011_1_1?srs=2591693011&ie=UTF8&qid=1531152531&sr=8-1
So you run your dash unit on recirculate all year-round, regardless of the temperature?