Winterizing window air conditioners

Old 08-23-19, 03:13 PM
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Winterizing window air conditioners

Can you winterize or should they be taken out?
Old 08-23-19, 03:21 PM
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A closed window is tighter than a window air conditioner.
Old 08-23-19, 06:01 PM
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I leave mine in place due to the difficulty of removal (getting older). I use a clear shower liner cut to fit the window and tape it with blue painters tape that removes easily in the spring. Then I close the blind over the shower liner and wait for spring.
Old 08-24-19, 08:10 AM
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You can winterize a window a/c but the decision to do so depends on how it is installed.
If it is actually in a window they often do not seal that well with a unit installed and let in a lot of cold air.

You can seal it up as suggested but one thing you need to pay attention to is if you completely cover, insulate and/or seal the outside you could get a fairly heavy frost build up inside the unit in freezing weather.
Many folks use removeable tape and plastic to seal the inside surface and then put a cover on the outside unit.

Common practice is to remove any unit in a window and winterize units mounted in a wall.

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