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Old 07-26-2019, 01:42 PM   #1
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2003 31' Classic
Sioux City , Iowa
Join Date: Jun 2019
Posts: 1
Adding Second Air Conditioner

We would like to replace the Fantastic Fan in our Classic with an air conditioner. In reading about this project, we are learning about a condensation tube that runs through the walls so that the condensation does not drip off the exterior of trailer. Is this correct? If so, is there an alternative to the condensation tube through the walls? Thanks in advance for any help.

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Old 07-26-2019, 02:49 PM   #2
Half a Rivet Short
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 7,885

You will have to take the trailer up to 50A electrical for two A/C's. Doing that wiring involves a lot more this and that than running the drain tube does.

The alternative is to just let condensation run down the outside of the trailer. It looks ugly, but it works.


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Old 07-26-2019, 03:45 PM   #3
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2019 27' Globetrotter
Missouri Valley , Iowa
Join Date: Sep 2008
Posts: 421
The draining condensate running down the side of your unit WILL look ugly. As I understand - it will eventually etch the clearcoat on your trailer.

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Old 07-26-2019, 04:40 PM   #4
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1991 34' Excella
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1961 26' Overlander
Central , Mississippi
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I added a second AC to our 34 (why did they ever make a 34 trailer with one AC???). I was able to route the drain forward to the bathroom, down the vent cover, over and down thru the sink cabinet and out the wheel well. I added a second breaker panel in the street side floor cabinet with a second inlet at the rear corner. Regularly run it on a 20 amp outlet. I also decided on a 11k btu unit to minimize cycling. I think my 34 thread is where the photos are.
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and a 26' '63 Overlander, Dolly
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