Air Conditioner Performance

Groover wrote:


Since your coach was made by the same company that made mine they may have similar ductwork. Mine has a duct on either side of the AC units about 10" wide and 3" high running the full length of the coach. The distribution from the factory was very poor since the vents were evenly spaced with total disregard for where the heat was generated so I bought 4 more vents and the correct size hole saw and put some more in where I thought that they were needed. Much better now.

As for the comment that you have to live with the noise I bought some covers for the return that really quieted them down. Everyone agrees that it was a huge improvement. We can actually have conversations at the kitchen table now. I have Dometic AC's but I think that they have versions for Coleman AC's as well.

Wacko AC silencer

My Dometics had a big discharge grill for "concentrated quick cooling" that I was afraid that I would miss. After adding vents straight out from where the cold air enters the ductwork I don't miss that at all and it is still quiet. I was also concerned that the flow would be reduced without that large noisy vent so I bought a vane type wind speed gauge and convinced myself that when I shut the noisy vent the air simply went somewhere else with very little loss so I haven't lost any significant capacity. Shutting off air vents in the over-cooled bedroom also mostly just routs the air to the front areas. The Wacko's are a bit pricey but they are still chump change in the total cost of owning the RV and made the family much happier.

Good luck!