Portable 12k BTU Installed In Toy Hauler
I recently did the AC ducting Mod on my 13.5 Dometic AC. I posted earlier that I found that the ducts inside the AC compartment were barely open not allowing much cold air to travel though the duct s...
Forum Discussion
LouLawrence wrote:
Those A/C units produce a high volume of air that needs to exit that vent. You might want to check the amount of back pressure of the exhaust air as that exit vent has lots of holes but it has much more solid space. I had a similar setup for an Cruisair unit and it could only be made to work properly once the vent was opened up. Changed it out to an expanded metal grid and everything was great.
Thanks for the input. The surface area of the vent is far greater than the diameter of the vent tube 5 inches. The actual vent opening on the back of the AC is even smaller than the vent tube.
I don't feel any escaping air from the airbox as you mightrhink if air was being restricted.
Other than that I don't have any way to measure back pressure.
I would not modify the air vent on the side of the trailer as I want it to remain stock. should I take the AC out.
I am confident the exhaust air has ample area to exit.
