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Old 06-30-2013, 01:21 PM   #71
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I like the idea of having 2 AC units. We've camped in some HOT weather and our single unit was working hard and long hours to keep things livable. Some campgrounds are not caught up yet and only offer a 30a service. If that happens to be the case would it be OK to use one AC unit ?????
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Old 06-30-2013, 01:29 PM   #72
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With 30 amp you can run only one at a time but you can choose which one as I understand things.
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Old 06-30-2013, 01:30 PM   #73
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Originally Posted by polarlyse View Post
... Some campgrounds are not caught up yet and only offer a 30a service. If that happens to be the case would it be OK to use one AC unit ?????
If you encounter a site that has 30A only, you will need a 30A to 50A adapter "dogbone". This will allow you to use your existing 50 shore power cord, but it will provide 30A service only to your trailer/motorhome. If wired correctly, you will have power only to the primary A/C unit and the other essentials: Converter, fridge, some wall outlets, etc. There may be a transfer switch which will allow you to select which A/C gets the juice.
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Old 06-30-2013, 07:34 PM   #74
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Originally Posted by Silver Goose View Post

If you encounter a site that has 30A only, you will need a 30A to 50A adapter "dogbone". This will allow you to use your existing 50 shore power cord, but it will provide 30A service only to your trailer/motorhome. If wired correctly, you will have power only to the primary A/C unit and the other essentials: Converter, fridge, some wall outlets, etc. There may be a transfer switch which will allow you to select which A/C gets the juice.
I thought the dog none adapter splits the 30 amps across both hot wires on the 50 amp plug?
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Old 06-30-2013, 08:24 PM   #75
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Just got back from Ft. Richardson SP in Jacksboro TX. Thurs and Fri were to the extreme, 108-110. Found the shadiest site and with the blackout curtain lining my wife sewed onto the curtains she made, as well as having the vents blocked, it never got over 82 inside. She came up with a very unique idea on how to fit the curtains to the curvature. Yes it was damn hot outside but comfy inside. Texas summers, its an easy weight loss program...
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Old 06-30-2013, 10:22 PM   #76
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Up near Dallas this weekend we hit 102outside and 78 inside with all awnings deployed. We were NOT inside during the day and when we returned at 8pm temp was 78 and dropping through the nite.

We had ZERO other shade at the RV park.

15,000 BTU heat pump from 1999.

We are installing second 13k AC in bedroom in a few days. Will convert to 50 amp this week and distribute electrical loads to help things work properly.
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Old 07-01-2013, 06:17 AM   #77
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As a science teacher I should understand the principles involved here.

Now as to the my original question. It seems that the airstream is perhaps less than ideal for camping in very hot climates. Although no one in this thread seems to have done any kind of direct comparison between an airstream and SOB camper with equivalent air conditioners and interior square footage.
1. Painting the roof white is a good idea
2. Awnings are good because they shade the side of the camper from direct sunlight and if one has a choice in positioning i would think that parking with the awning side facing south would be best if one doesn't have two awnings.
3. You mostly have to beat the heat through brute force by installing the biggest air conditioning units available and perhaps adding a second one.
Science Teacher, you've got it. As far as a comparison, our Airstream (2011 FC23FB - white roof) is harder to cool than our previous molded fiberglass 17' Casita, after taking into account the difference in shell area and interior volume. The difference is due to the color and thermal conductivity of aluminum. In the construction of the Airstream, there is a direct thermal connection between outer and inner skin via the aluminum framing, so the inner skin gets hot despite the insulation between skins. The white fiberglass shell of the Casita, despite being a single layer, was lined with foam backed carpet on the inside and simply did not transfer as much heat (or cold).

We are currently towing from CO to WA and have had days of 106 in UT and 102 in ID. We tow with the roof vents open and plug in the A/C as soon as we hit the campground. We drive later than normal, closer to sunset, and forgo boondocking in this heat - even though we have a Yamaha 2400iS that will run the 13.5k A/C. It takes about an hour to cool the interior air from 100 down to 85, and the inner skin will still be quite warm.

A second rooftop A/C in a unit this size would not be tolerable to me, the rooftop A/C is very loud.

I wish that I could safely arrange the generator so as to be able to run the A/C for the last hour of towing, as we do with the furnace in cold weather.

Yes, the Airstream is less than ideal for very hot or very cold climates, although we use and enjoy ours in both. Had Casita or Oliver built a 24 ft model, I'd definitely be towing fiberglass.
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Old 07-02-2013, 04:03 AM   #78
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Our previous sob trailer was really drafty. It was more noticeable in cold weather. ThemAirstream is more comfortable in cold weather than the sob was. I can't tell any difference in cooling, but the previous trailer had one a/c and this trailer has 2. They are loud, and we seldom run both at the same time. If we are in the front, we run the back a/c and vice versa. The bedroom cools much easier. I assume it is because the are is smaller and has less windows. I will be purchasing some type of insulating material for all windows and skylights.
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Old 07-04-2013, 08:38 PM   #79
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Dark fabric will trap the heat not reflect it. The foil would be a better choice...or at least a light color fabric.
"Technically", yes.

There was a trade-off, for me, in the appearance of the TT. With smoked windows the light charcoal fabric did fine, and the interior side was covered with a fabric that complemented the interior. And, as the installation was of the press-fit variety where the fabric sealed the edges of the REFLECTIX all around the window frame potentially I had better performance with this approach, not just a more pleasing appearance inside and out. Note where I live and that the TT was in use 24/7 through all of 2012.
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