Asked on May 24, 2014
I want to put an air conditioner in my sliding window.
by Debi Cannon
+8
They are horizontal sliding window 20 " h and 16-34 w, need info whats the best way to put a 12000 btu in that window.
7 answers
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You will need to remove both sashes for that size unit. Most come in widths of around 18" which would be wider then just one half of that slider. The sashes come out simply by lifting them up and pulling them out. Once they are removed, you need to fit a wood board inside the track where the window slides and another on the wood frame so both are even in height. Once that is done your new AC unit can rest comfortably without damaging the window frame and sash. Measure the height of the sash to be sure the new unit will fit. Any space that needs to be filled in can be done using a plywood panel and the expanding wings that come with window AC units.
![Woodbridge Environmental Tiptophouse.com]()
Woodbridge Environmental Tiptophouse.com
on May 24, 2014
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Since we have retired and not in an air-conditioned office all day, our bodies have acclimated to warmer temperatures in the house. Our den where we spend most of our time is on the shady side of the house so we rarely use the A/C. But with a 2 story with bedrooms upstairs on the afternoon sunny side, we need more cooling. We took out the bottom sash, fitting some heavy Styrofoam over the guide to keep it from getting damaged (carve it to fit over the sides of the space where the sash was but allow it to be a little taller than the actual track); we then cut a piece of wood to fill in the open space and epoxied it in place. We then painted the wood. Our units have timers which are turned on about 30 minutes before bedtime and then set to run for about 1 hour until the day's heat is gone! We love them.
![Jeanette S]()
Jeanette S
on May 25, 2014
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If you haven't purchased the AC unit yet, look into a 'Mini-split" setup which won't block the window...you may need the window as an emergency exit..
![Pete Wells]()
Pete Wells
on May 25, 2014
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What is a mini split?
![Debi Cannon]()
Debi Cannon
on May 25, 2014
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Portable air conditioner would be my choice. I have two of them and they work great. They can go in a double hung window, or in a vertical. They come with a plastic piece that the exhaust hose fits into that can be installed horizontally or vertically. So easy, you don't have to make any changes to your window, you don't need anyone to help you do it, and at the end of the season removing it is simple and you can just roll the unit into a closet until you are ready to use it again.
![Virginia Philo]()
Virginia Philo
on May 25, 2014
- See 1 previous
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Have seen them for sale on qvc
![Funnygirl]()
Funnygirl
on May 26, 2014
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They now sell a unit that requires no ductwork and attaches directly to the wall leaving the window clear and I obstructed .I believe it is made by Mitsubishi .Have two off them in My sunporch, they work great and don't look bad.They also allow you to decide where you want it although the installer will encourage you to put it in a suitable location for the best results
![Funnygirl]()
Funnygirl
on May 26, 2014
Woodbridge Environmental Tiptophouse.com
on May 24, 2014
Jeanette S
on May 25, 2014
Pete Wells
on May 25, 2014
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