How to vent portable A/C unit?


Old 07-19-20, 02:50 PM
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Question Vent portable A/C unit to attic?

I want to put a portable A/C unit in the garage and vent it through the attic out to the soffit. How would I do this?

I tried to find some tutorials online but came up empty.

It is very humid here. I am in Houston. Humidity runs around 80% in the morning to 60% at night.

EDIT: looking at one hose units

Last edited by solto2; 07-19-20 at 05:44 PM.
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Old 07-19-20, 04:52 PM
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That is way too far away to vent any portable A/C.

If it's a single hose portable A/C....... sell it and get a two hose model.
The single hose units are completely ineffective and won't perform well in your garage.

You need a two hose unit that brings in fresh air to cool the compressor/condenser and then discharges the hot air outside. It's very important to keep the hoses as short as possible.
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Old 07-20-20, 07:02 AM
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First, you MUST have a two hose portable air conditioner. Do not even consider a single hose model. Single hose units suck in so much outside air through cracks around doors and windows that they have very little net cooling affect. A two hose unit will perform more like a traditional air conditioner and is MUCH more effective and efficient.

Portable air conditioners are not designed to have any resistance in the ducting. They are designed to sit right in front of a window so the hoses are short and mostly straight for minimal resistance. I would either vent through a window or through the wall.
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