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Jerry9n's avatar
Jerry9n
Explorer
Sep 24, 2014

Installing Window AC in Older Trailer

I have a 1965 Holmescraft 18' trailer I am pretty much rebuilding from the ground up. I want to put in AC and have toyed with a window unit instead of a roof, both for looks and cost. I know window units have side vents and was wondering how the new small trailers deal with that. Since the original propane refrig is gone and we will be using the trailer for short weekend trips, I am going to put in a larger "dorm" refrigerator where the old propane was. There are plenty of wall grilles for the old setup and could maybe utilize one of them. Would appreciate any ideas. Also if you have one of the new lightweights with a window unit would be curious how they deal with the issue of side vents on the AC.

A portable unit would be the last resort, but takes up space and the layout isn't real conducive to one of these.
  • jfkmk's avatar
    jfkmk
    Explorer
    Sep 24, 2014
    Some of the smaller trailers, mine included, come with wall mounted ac units. They're mounted so they're flush with the outside wall of the trailer.
  • old_guy's avatar
    old_guy
    Explorer
    Sep 24, 2014
    years ago when I worked for Sears I sold many small AC units just for that reason. one guy even put it under his bed. I wondered about odors on that one.
  • oldmattb's avatar
    oldmattb
    Explorer
    Sep 24, 2014
    We had a 60s trailer with a window unit. It was mounted on the back wall and centered, so it did not look at all out of place, and created no width issue. It was a 6K btu, which cooled the trailer well. Even had a remote control.

    With a roof unit, you will need to cut a big hole and maybe reinforce the roof. You also need to get the power to it.

    Best of all, if the window unit dies, you go to Lowes, buy a new one for $100, and install it in fifteen minutes in the parking lot.

    You got my vote, amigo!

    Matt B

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