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Old 04-10-2016, 09:30 AM   #29
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2012 30' Flying Cloud
San Antonio , Texas
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Originally Posted by Roadtech View Post
In the new Airstreams with ducted air, I assume both air conditioners share the same duct system. Therefore, unlike the non ducted system with one air conditioner, you get air distributed throughout the trailer. l wonder if most proponents of two air conditioners are experienced with the older non ducted systems and the real advantage then, was getting better air distribution by having air coming out of the two units in the front and rear of the trailer. Seems like with one 15,000 BTU unit blowing into a ducted system, distributing the air throughout the trailer, it would be adequate except in the most extreme conditions, which would be rare. Plus, with one unit, you get the advantage of less initial cost, lighter 30 amp cord, and the additional front 30 amp connector for a generator.
The ducted air in the double ceiling will lose some of its cool just getting into the trailer. Then the double top will provide better insulation also. So it might all be a wash. Fact remains that a 28 foot Airstream sitting in 100 degree sun needs two.

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Old 04-19-2016, 03:21 PM   #30
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2016 30' Flying Cloud
Tampa , Florida
Join Date: Jun 2015
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Just a data point for the OP.

We are in Mesa AZ. It is 88F at 2PM and sunny. We are in full sun, with all the awnings (rear, utility side, patio side) awnings fully deployed.

Our 27' FC FB has 50A service, however our second AC is not working (separate issue).

Our main AC is working continuously, and the temp in the coach is 79 in the back and 81 in the front.

2016 30' Flying Cloud / 2016 Ram 2500 Diesel 4x4

“Character is doing the right thing when nobody’s looking. There are too many people who think that the only thing that’s right is to get by, and the only thing that’s wrong is to get caught.” - J.C. Watts Jr.
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