Air conditioner efficiency
I recently purchased a new travel trailer and deliberately went with a non-ducted AC this time. It is working great in 100+degree heat. My thinking was to avoid the long runs of ducts in the ceiling ...
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We have a 32 ft. 5th wheel with very high ceilings and camp when temps are as high as 115-118 degrees. We have a 13.5k a/c in the front, a 15k unit in the main living area. In ducted mode, no cooling problems with higher humidity and temps up to 90-95 degrees in the south/southeast. However, in the desert SW with temps around 115-118 degrees we were forced to "completely" bypass the ducting with the 15k unit. We blocked off the ducting ports, removed the sliding ceiling baffle, and allowed all the cold air to exit straight down---pretty significant increase in cooling . . . and, unfortunately, a bit noisier, too.
