Thor Forums

[Lusitan]

Originally Posted by Hooligan2

On the Siesta Sprinter, I added 2 new vents to the AC ducts in the cabin, just aft of the skylight. Good increase in cooling there.
The AC at that seam transitions from the roof ducts to ineffective small round tubing to get to the vents over the bunk.

Based on Hooligan2's information, yesterday I completely blocked the airflow to the vents over the bunk since I only use that space to store all kinds of stuff. There is now big difference in cold airflow coming out of the ducts over the main cabin area.

This modification together with a cab separator curtain my wife and made, makes a huge difference cooling down the coach. The curtain has a dual purpose; when on the road, it retains the cold air from the chassis AC in the cab area. When parked, it keeps the cold air from the coach's AC from moving forward to the hot cab area. We used material from a set of Blackout Energy-Efficient thermal back curtains from Walmart to make the separator. Used snap fasteners to attach it to the top and sides, a large zipper in the center to allow passage, and some fishing sinker lead weight to keep the curtain taut. The idea came from an article I found in another forum a while back. Used the attached photo as a visual guide.