Cooling garage

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Old 03-10-19, 12:33 PM
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Cooling garage

My central heat unit is in my garage. In the summer.the blower and A coil sweat.Would it be best to install a window unit or add another duct from my plenum? If is the latter,would I need a return vent as well? It is a one car garage with a ten foot ceiling.Thanks for the help.
 
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Old 03-10-19, 01:23 PM
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Welcome to the forums.

If it's an active and used garage....... you cannot add any duct work from the air handler. That would be a possible CO issue. If you want to cool the garage..... you'll need to add a separate unit.
 
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Old 03-10-19, 02:27 PM
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Originally Posted by Elton Yancey
My central heat unit is in my garage. In the summer.the blower and A coil sweat....
Wait, is "A coil" supposed to be "AC coil"?

Why would the AC coil be in the garage?
Was it an open carport that was later enclosed?
 
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Old 03-10-19, 02:38 PM
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The A coil is the A coil that is in the air handler. The outside unit is the condenser.
 
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Old 03-10-19, 04:36 PM
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Originally Posted by PJmax

The A coil is the A coil that is in the air handler. The outside unit is the condenser.
Ahh, home evaporator coil, usually shaped like the letter "A".

Used to thinking about the flat evaporator coils in my office.
 
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Old 03-11-19, 06:19 AM
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Another option is a dehumidifier.
 
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Old 03-11-19, 05:26 PM
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It is common practice in commercial settings when an air handler and duct work and cold water lines as well are in a non-conditioned space that it is all insulated.
Foil faced fiberglass can be wrapped around all ducting and the air handler to eliminate your problem.
 
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Old 03-11-19, 05:49 PM
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I believe the sweating is a separate issue. I think he wants to cool the garage.
 
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Old 03-11-19, 05:53 PM
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Hmm....maybe.
I'm sure he will let us know.
 
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Old 03-12-19, 10:53 AM
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Thanks for the good info.So far,I have insulation on the A coil box and plenum and I will add it to the rest of the unit.Wouldn't a window unit do the as a dehumidifier? I have also thought about enclosing the whole thing with studs and sheetrock but don't know if that would solve the sweat problem.
 

Last edited by Elton Yancey; 03-12-19 at 10:58 AM. Reason: Added more info.
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Old 03-12-19, 11:04 AM
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Not used as garage.Tools ,storage and misc.
 
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Old 03-12-19, 11:30 AM
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The proper way would be to insulate anything that is not in the conditioned space and/or sweating.
Of course you could install an air conditioner or even try a dehumidifier but it seems ridiculous to turn an unconditioned space in to a conditioned space because of a sweating pipe or duct!


You just need to wrap your head around the idea because it is a commercial type solution for a residential problem
You just need to research foil faced fibreglass insulation then go do it.
 
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Old 03-12-19, 03:45 PM
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Just noticed you mentioned
thought about enclosing the whole thing with studs and sheetrock
This will make the problem worse because you will still get condensation only it will be hidden.
 
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Old 03-13-19, 05:27 PM
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Didn't think of that.Thanks
 
 

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