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Old 05-10-2019, 07:30 PM   #1
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California , MD
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Posts: 57
Does a 25RB Twin Need 2 ACs?


Looking to order a 25RB Twin and wondering is it needs 2 ACs?

Seems like it should do fine with one.

However, never having owned an Airstream, I wanted to ask.

Thanks in advance for your thoughts.


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Old 05-10-2019, 07:34 PM   #2
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Dadeville , Alabama
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Lots on the forum about this topic. I think it needs 2 without a doubt. If you travel south in the summer 2 is a must.

Dept of “OverKill”
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Old 05-10-2019, 07:38 PM   #3
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From our experience, it depends on where you camp. In full sun on a hot day, our 25' FC single AC unit can sometimes only cool the AS to about 10-12 degrees lower than the outside temperature. So if it's 95 degrees it might only cool it off to the low 80's.

So we try not to camp in those conditions. If you will be regularly camping in those conditions you should get two ACs.
"A good traveler has no fixed plans, and is not intent on arriving." - Lao Tzu
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Old 05-10-2019, 08:09 PM   #4
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With the lower reliability of the new air conditioners it would be nice to have a backup.
The higher your expectations the fewer your options.
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Old 05-10-2019, 09:10 PM   #5
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My experience was different, for a different generation of 25. We had a 2001 Safari 25 RB twin with only an 11,000 BTU AC. Sitting in the sun, in my driveway, with 95 degree temperatures it kept the trailer comfortable, but I don't remember the temperature. It wasn't cycling, if I remember correctly, but we were never uncomfortable. It had the mouse fur walls and vinyl ceiling overhead so no exposed aluminum.

Our 2002 Classic 30 is another story. I will probably end up putting a rear unit in it.


"You cannot reason someone out of a position they have not been reasoned into"

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2001 Safari 25 RB Twin (Gone, but not forgotten)
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Old 05-10-2019, 10:14 PM   #6
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2016 26' Flying Cloud
Southlake , Texas
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I would definitely recommend two. We have replaced both of our units TWICE! It would have been miserable without any a/c.

I hope we don't have any more failures!

2016 Flying Cloud 26u
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Old 05-10-2019, 11:45 PM   #7
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Two no doubt
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Old 05-11-2019, 01:38 AM   #8
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I always recommend two.

1. You have a backup
2. You can turn on the AC opposite to where you are in the trailer for less noise. Even with them being duct'd, still loud enough to be annoying (to me at least).
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Old 05-11-2019, 05:04 AM   #9
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2019 26' Flying Cloud
Morristown , Tennessee
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I'm in a 26 with two, and I like it because,
50 amp service. I can use 30. But if I have only 30, I cannot use 50.
Sometimes I want it quiet in the lounge area, so I run the AC unit on the opposite side.
Having a backup is awesome. Two is one, and one is none.
In 100+ degree days, I can run two and get in the mid-70's inside.
Two heat pumps for those cold days.
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Old 05-11-2019, 07:01 AM   #10
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Maybe it depends upon whether you view the trailer as a tent on wheels or a mobile luxury condo.
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Old 05-11-2019, 09:11 AM   #11
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2018 27' Globetrotter
Orlando , Florida
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2 Air Conditioners.. Yes!

We have 1 unit, Non-Ducted on our 25 Safari SE.
1. These things break. 2 is better than 1.
2. you can use them as needed.
3. Re-Sale. Nobody keeps these forever. Don't be cheap with Comfort issues.
4. Hot Weather. You'll be glad you did it!

Safe Travels!
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Old 05-11-2019, 09:25 AM   #12
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St Petersburg , Florida
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1 or 2 AC units?

Sleeping in the heat.....

During summertime in Maine and Nova Scotia, one is adequate.

During summertime in Arizona and Texas, two is almost mandatory.

From a re-sale perspective, having two is always better.

Be well and "sleep cool"

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Old 05-11-2019, 09:54 AM   #13
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Trenton , Georgia
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We've had our 2016 25RBTwin since May of that year. We avoid camping during the heat of the SE where we live in NE GA and travel out west in the mountains in late summer and fall. One has worked well for us. For those who camp in the hotter months wherever, two would be wise.
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Old 05-11-2019, 10:06 AM   #14
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We have owned 3 25' AS's; all had only one, 1500AC unit, so we did not experience the value of having 2 AC's. Even on our camp trips in Texas heat and California desert, it wasn't an issue...since we did not have 2 AC's. It took awhile in those hotter climates to get us comfortable, for sure, but that's all we had.

Fast forward- the dealership here in TX started ordering 25's with 2 units about 8 years ago, as I recall; now they order all 25' and larger AS's with 2 AC's, unless a customer requests a special order of one.

We have 2 in our 28', and I am glad. We mostly use the second unit to cool our AS faster when in hot climates, then we will select just one for maintaining the temperature we are comfortable with, especially true at night... If I were doing it again, I would get 2; better resale also.

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2017 28' Twin Flying Cloud
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