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Old 07-12-2020, 04:23 PM   #1
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27' Globetrotter 2nd AC Question

I am looking at buying a new 27 Globetrotter and see that one of the options is a 50 amp setup with a second AC. My question is do i need the second AC? We live in the south but do not camp much during the summer for obvious reasons. Thanks for your comments!
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Old 07-12-2020, 04:39 PM   #2
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On a 27’, with ducted... yes you want and need a second AC. I don’t know what airstream even make this an option. You want this, and 50A service is a big plus.
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Old 07-12-2020, 04:40 PM   #3
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Resale value is maybe the best reason. If you can afford it get the 2nd AC and 50 amp service. With the ducted AC the two units work brilliantly.

Hard to add after the fact and you can always use 30amp and only one of the ACs.

At home we leave the AS plugged into a 30amp and at campgrounds if we can get it we do 50amp but can also do 30amp and only use one of the AC units.

Plus both units on the GT operate as heat pumps as well so it will extend the camping season wherever you are. The rear unit will even select gas or HP depending on the temp outside.
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Old 07-12-2020, 04:49 PM   #4
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Originally Posted by ibordelon View Post
I am looking at buying a new 27 Globetrotter and see that one of the options is a 50 amp setup with a second AC. My question is do i need the second AC? We live in the south but do not camp much during the summer for obvious reasons. Thanks for your comments!
We live in the metro Phoenix area and have two a/c's - one alone will not do it. Also, in addition to choice and resale, retrofitting a second a/c with associated electrical upgrade is usually not an option.
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Old 07-12-2020, 04:53 PM   #5
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Old 07-13-2020, 12:49 PM   #6
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Not to mention, if one quits you can still use the other one.
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Old 07-13-2020, 12:53 PM   #7
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Yes
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Old 07-13-2020, 01:22 PM   #8
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We live in North Georgia and plan to purchase an AS with two (2). I've read a lot of threads concerning this topic and there are guys who justify their use of a single. The ones that convince me are the ones who either have a 25' or less and/or live north of the Mason-Dixon line.
I recently priced a new 27' FC and found the extra cost as being very reasonable. And since you live in the South and most likely will eventually sell in same, the additional unit will help the resale.
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Old 07-13-2020, 01:52 PM   #9
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Ok, I'll take the other side of this debate. I live in Tampa, FL and I'm on my second Airstream with a single A/C. My first a 25' with ducted air and my second a 27' Globetrotter with ducted air. I would recommend the three awning option and a roof full of solar panels to block the sun. I have no problem cooling my 27' Airstream in the Florida heat and humidity. Right now the temperature is 94 with a heat index of about 110 degrees. It was the same temperature this past weekend while I was camping with the grandkids in Tampa. There were five of us sleeping in the Airstream and we did not have any problems with the single A/C. I also prefer single A/C and two fantastic fans because I primarily boondock and power my Airstream with solar.

I'm aware that I'm in the minority on this one, but I have to balance the debate a little bit. I travel all over the country each summer, nearly 400 nights and 52,000 miles so far, and never had a problem with the single A/C keeping up in Arizona, Texas, Colorado, California, Georgia . . . Obviously if I had a problem with the single A/C, I wouldn't have bought a second Airstream with a single A/C.
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Old 07-13-2020, 02:33 PM   #10
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You definitely want two air conditioners. My FC 27FB came with one and I’ve regretted it every time we use the trailer (as we use it when we visit our children, two of which live in Texas).

Ultimately I hope to return to the Mother Ship to have a second a/c and 50 amp wiring installed but that’s quite a trip from the Pacific Northwest (and not cheap either).
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Old 07-13-2020, 03:45 PM   #11
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27' Globetrotter 2nd AC Question

While some are focused on cooling ability, ours is also on audible comfort while in each area of the trailer. It was 94* this weekend and the ability to have a nice peaceful dinner while the front/bedroom unit runs is fantastic. While cooking or sleeping, when we would like it a little cooler, let the rear 15k unit run and all is wonderful.
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Old 07-13-2020, 04:02 PM   #12
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Get the 2 A/C's. Our 2018 26-U only had one and it did not do well at all. It's not like we wanted to buy a 2019 FC just because of disposable income!

However, the 26-U has more windows than almost any other floor plan.
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Old 07-13-2020, 08:13 PM   #13
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Originally Posted by AirMiles View Post
Ok, I'll take the other side of this debate. I live in Tampa, FL and I'm on my second Airstream with a single A/C. My first a 25' with ducted air and my second a 27' Globetrotter with ducted air. I would recommend the three awning option and a roof full of solar panels to block the sun. I have no problem cooling my 27' Airstream in the Florida heat and humidity. Right now the temperature is 94 with a heat index of about 110 degrees. It was the same temperature this past weekend while I was camping with the grandkids in Tampa. There were five of us sleeping in the Airstream and we did not have any problems with the single A/C. I also prefer single A/C and two fantastic fans because I primarily boondock and power my Airstream with solar.

I'm aware that I'm in the minority on this one, but I have to balance the debate a little bit. I travel all over the country each summer, nearly 400 nights and 52,000 miles so far, and never had a problem with the single A/C keeping up in Arizona, Texas, Colorado, California, Georgia . . . Obviously if I had a problem with the single A/C, I wouldn't have bought a second Airstream with a single A/C.


Do you have an issue with 30 amp blowing fuses when using multiple appliances? Would 50 amp be better to eliminate the overload just from a voltage issue over a/c?
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Old 07-13-2020, 09:35 PM   #14
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Get the 50 amp/dual AC. And the roadside awning. Lots of reasons. It is a cheap upgrade now, super expensive later. If you want to keep the temp below 80 F, you need two AC’s. If one fails, you have another. At night you can turn the living room AC on for quieter operation in the bedroom. And a 50 amp service provides extra electrical capacity - it’s actually two 50 amp breakers, for a total system capacity of 100 amps. Plenty of juice for 2 AC’s water heater, hair dryer, etc.
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Old 07-14-2020, 07:48 PM   #15
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Do you have an issue with 30 amp blowing fuses when using multiple appliances? Would 50 amp be better to eliminate the overload just from a voltage issue over a/c?
Yes, 30A is very close if you run the A/C and microwave together, and will sometimes blow the shore power 30A fuse possibly when the water heater or battery charger is also running. This may also result when the breaker at the campsite shore power is finicky. Campground power is notoriously finicky. This past weekend, I had to use the 50A breaker at the campsite because the 30A kept popping. I chalk that one up to a faulty 30A breaker at the shore power pole. I rarely (never?) pop the 30A breaker inside the Airstream and never have a problem while I'm running on my Champion DualFuel 3500W generator downgraded to 3150W due to propane use.

Another advantage to the 30A Airstream . . . it has a 30A plug at the front of the Airstream to use with the propane quick disconnect to run the propane generator. Again, for boondocking/dry-camping, nothing beats a 30A single A/C Airstream in my opinion. I rarely camp where there is a 50A shore power plug. I rarely camp where there is even a 30A shore power plug. So again, I find the dual Fantastic Fans and the front 30A shore power connection more useful than a second A/C. Also, I could see the need for two A/Cs for non-ducted Airstreams due to the noise factor - run the one farthest away from you. With my ducted Air Airstreams, I never found the A/C noise bothersome. With my Casita, I used to get noise deftness from the loud non-ducted A/C running over my head all night.

Again, I'm just sharing the advantages to a single A/C Airstream to balance the debate. I wouldn't want a dual A/C Airstream, but understand that many others would not want a single A/C Airstream. Have you ever noticed that almost all 5th wheel campers have a single A/C? How do they keep those monsters with multiple slides cool with a single A/C? I don't get why everyone is saying you can't keep our small- well-insulated Airstreams cool with a single A/C. I never have a problem keeping mine cool.

Another example. We frequently stop at Cracker Barrel at dusk after a hot day of traveling to dry-camp in their parking lot overnight. We fire up the Champion 3400W DualFuel generator, turn on the A/C. Take the dog for a short walk around the parking lot to do his thing. Put the dog in the Airstream because its already cooled down enough for the dog. Go inside to eat dinner in the 100 degree Georgia heat. When we come back out to the Airstream in about one hour, the Airstream is completely comfortable. Most of the time, we turn the generator and A/C off and sleep comfortably all night. A couple of times (Shreveport, LA and Lake City, FL in mid-summer come to mind) we did leave the generator and A/C running until midnight before shutting it off for the night. Again, just sharing how we use our single A/C Airstream to balance the discussion, since I'm the only one commenting on the single A/C side. MooseTags from Florida usually chimes in too. He's on his third single A/C Airstream and has spent thousands of nights without an issue. I took his advice to buy a ducted single A/C Airstream with the three awning option and have never regretted following his recommendation.
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Old 07-14-2020, 08:11 PM   #16
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Had a 25' Flying Cloud with 1 AC. Traded it in for a 30' Classic with 2 AC units. Lesson learned. Never again and will always have two AC Units.

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Old 07-14-2020, 11:04 PM   #17
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Originally Posted by AirMiles View Post
Yes, 30A is very close if you run the A/C and microwave together, and will sometimes blow the shore power 30A fuse possibly when the water heater or battery charger is also running. This may also result when the breaker at the campsite shore power is finicky. Campground power is notoriously finicky. This past weekend, I had to use the 50A breaker at the campsite because the 30A kept popping. I chalk that one up to a faulty 30A breaker at the shore power pole. I rarely (never?) pop the 30A breaker inside the Airstream and never have a problem while I'm running on my Champion DualFuel 3500W generator downgraded to 3150W due to propane use.

Another advantage to the 30A Airstream . . . it has a 30A plug at the front of the Airstream to use with the propane quick disconnect to run the propane generator. Again, for boondocking/dry-camping, nothing beats a 30A single A/C Airstream in my opinion. I rarely camp where there is a 50A shore power plug. I rarely camp where there is even a 30A shore power plug. So again, I find the dual Fantastic Fans and the front 30A shore power connection more useful than a second A/C. Also, I could see the need for two A/Cs for non-ducted Airstreams due to the noise factor - run the one farthest away from you. With my ducted Air Airstreams, I never found the A/C noise bothersome. With my Casita, I used to get noise deftness from the loud non-ducted A/C running over my head all night.

Again, I'm just sharing the advantages to a single A/C Airstream to balance the debate. I wouldn't want a dual A/C Airstream, but understand that many others would not want a single A/C Airstream. Have you ever noticed that almost all 5th wheel campers have a single A/C? How do they keep those monsters with multiple slides cool with a single A/C? I don't get why everyone is saying you can't keep our small- well-insulated Airstreams cool with a single A/C. I never have a problem keeping mine cool.

Another example. We frequently stop at Cracker Barrel at dusk after a hot day of traveling to dry-camp in their parking lot overnight. We fire up the Champion 3400W DualFuel generator, turn on the A/C. Take the dog for a short walk around the parking lot to do his thing. Put the dog in the Airstream because its already cooled down enough for the dog. Go inside to eat dinner in the 100 degree Georgia heat. When we come back out to the Airstream in about one hour, the Airstream is completely comfortable. Most of the time, we turn the generator and A/C off and sleep comfortably all night. A couple of times (Shreveport, LA and Lake City, FL in mid-summer come to mind) we did leave the generator and A/C running until midnight before shutting it off for the night. Again, just sharing how we use our single A/C Airstream to balance the discussion, since I'm the only one commenting on the single A/C side. MooseTags from Florida usually chimes in too. He's on his third single A/C Airstream and has spent thousands of nights without an issue. I took his advice to buy a ducted single A/C Airstream with the three awning option and have never regretted following his recommendation.


Thank you.
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Old 07-15-2020, 03:36 AM   #18
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Why not have another tool in the tool bag, in case you need it at some point?



The extra cost is just good insurance for resale value.

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