Instructables

Installing A/C unit inside of a horizontally sliding window.

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Most inexpensive A/C units are designed for vertical sliding windows, which creates a problem if you have horizontal sliding windows. Installing an A/C unit inside of a horizontally sliding window does not have to look bad, and it does not require any special brace.

I can't take responsibility for your installation, theft, break ins, and your A/C falling out of your window.
 
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Step 1: Materials required:

The unit I am working with is a Haier 8000 BTU from Walmart. http://www.walmart.com/catalog/product.do?product_id=5402964. Yours might be different but the idea is the same.


1/4" Rubber Foam Weatherstrip
Window screen frame
Plexiglass - Home Depot
Screws, self drilling, 1/4"
C-channel Aluminum pieces 3/8' and 1/2' sold in 8' length
Silicone - Home Depot
Nut Rod Coupling  and a screw that fits.
jcharles1116 days ago
Thank you so much for this! You are a life saver!!

Any suggestions for a removable caulk?
THANK YOU FOR THIS INFO. I HOPE I CAN MAKE MINE LOOK THIS GOOD
ikssk (author)  cinderellato2 years ago
Good luck
ikahoshi3 years ago
Thank you for posting this. I think this might be just the thing for my situation.
sierrabravo4 years ago
i have seen a few units like this before.  if you are worried about theft or break-ins, I would suggest putting one or a few pre-cut pieces of wood or metal on between the moving window and the left frame to secure that sliding window in the position it's in so it cannot move left or right.
ikssk (author)  sierrabravo4 years ago
That is a good idea, I did not have to worry about that since the window is on the second story.
rjlewis745 years ago
Great instructable. I have been looking to put something like this together for sometime. Thanks
ikssk (author)  rjlewis745 years ago
Thank you