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I live in an apartment and have a central air system but my main bedroom always stays about 10-15 degrees hotter than the rest of the apartment. I reached out to my landlord about this problem and she just brushed me off, so I called out an AC company & they said that the duct work was too small for the bedroom (they can't do anything without landlord approval) so here I am looking for a window AC.

I have a pretty large & odd shaped vertical opening window measuring in at about 50" wide and 12 1/2" tall. I've searched high and low for a window AC unit to fit those measurements, but continue coming up short. Any ideas on how I could get a standard window unit to fit in & stay?

I should also mention that I obviously rent & the frame is metal, so I can't screw or nail anything in.

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Misty
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That is a really wide window.

At just 12 inches tall you won't be able to fit any sort of window unit. Even 6,000 btu models are usually 12.5 inches tall. If you can find a short enough model then great but then you'll have to contend with finding a wide enough accordion curtain or just fill the void with cardboard.

An alternative option is a portable A/C which sits on the floor and exhausts out the window using a vent tube.

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MonkeyZeus
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There are "saddle" or "over the sill" window units that might fit nicely in this window.

NOTE make sure the unit you buy will fit through the fully open window during installation. See if you can remove the lower sash or both of them to aid installation. Or if the window has top limiters (screws or blocks in the channels) that can be temporarily removed to open it further for installation (unlikely for a ground floor but have a look.)

These A/Cs are good for rentals as they don't require mounting brackets or screws. There will be a narrow gap on the sides of the unit that you'll have to fill. There are foam strip kits you can buy to do that, and/or use strips of wood or plastic. With these units it's easy to open the window when not in use and for that reason you should not fill the gaps by taping/gluing anything to the window. Make sure the wall is not thicker than the saddle width of the machine.

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jay613
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Picture below may help. Masking tape may help to keep the plywood in place, if it is your option. Also, you can use rigid foam (wrapped in plastic) at the bottom to level the window track.

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r13
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