My coach (SOB) has actual ducts and still can’t keep up on 95+ degree days. I have been using a portable AC powered through the 20A outlet on the pedestal and that worked fine. Like the coach enough that I finally decided to cut a 14 inch hole in the ceiling and roof to hard wire a second, unducted, rooftop unit just for the bedroom. Blocking off the original ducts to the back half of the unit forces more air out the front. Not finished yet but expecting a good outcome. I look to be into it for about $700 for a permanent solution to an ongoing concern.
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