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Old 01-24-2010, 06:31 AM
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For those of you that live where it snows - cold winters, do you cover you outside unit? If so, with what? And do you find that it causes the top of your unit to rust?
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Old 01-24-2010, 10:29 PM
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If your talking about central air units, must people do not cover them. I can't recall seeing 1 with a cover.

If you mean through the wall units then yes some get covered. I use an old bath towel and weather proof cover for insulation.
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Old 01-25-2010, 03:44 AM
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Its good to cover your "unit" when you are away from home....


Seriously if you do I would use a waterproof breathable thing like tyvek type material for the very reasons you suggest. I don't think most people cover them (central air) around here. I do cover my TTW units on the first floor with tarp and tape to reduce air infiltration - you could also buy one of those insulated covers (8 bucks at the hrdware store) or add insulation under the tarp.
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Old 01-25-2010, 05:04 AM
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I don't cover any of the condensing units and I also shut off the power to them at either the breaker or at the disconnect depending on their locations. There are heaters inside that don't need to be run all winter.
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Old 01-25-2010, 06:52 AM
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Originally Posted by 08087 View Post
If your talking about central air units, must people do not cover them. I can't recall seeing 1 with a cover.

If you mean through the wall units then yes some get covered. I use an old bath towel and weather proof cover for insulation.
Yes central air, not window units.
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Old 01-25-2010, 06:57 AM
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Originally Posted by Mist-Rest View Post
There are heaters inside that don't need to be run all winter.
> ......I'll have to remember that for next year.......I just finished installing a new furnance/ central air, so the air conditioners isn't charged yet...apparently they can only be charged in warmer weather.
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Old 01-25-2010, 06:58 AM
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I leave it uncovered. The A/C guy recommended that, but he did say if i wanted i could lay a piece of plywood over the top, but I don't do that either. I do get lots of leaves in it though.
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Old 01-26-2010, 09:50 AM
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Originally Posted by NJFISH View Post
I leave it uncovered. The A/C guy recommended that, but he did say if i wanted i could lay a piece of plywood over the top, but I don't do that either. I do get lots of leaves in it though.


For a time I worked for a guy that did all his own maintenance. He owned 4 fast food rest. And every year we'd head up on the roof and spray a special chemical on the veins to get rid of any build up, (dirt, leaves, etc.) his units were heat and AC combined so he had to leave them exposed (uncovered).

So I guess you should cover the top with at least a piece of wood to keep debris out.
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Old 01-26-2010, 10:47 AM
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I cover the top with a piece of plywood or just the top and a few inches on the side with a cover.. Keeps the leaves out and the rest can breath to dry up moisture
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