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Old 09-29-2020, 10:35 PM   #1
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2021 Interstate 24GL
Los Angeles , California
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New Owner of 2021 Interstate 24GL

I started searching for the right coach a few months ago, after visiting multiple dealers and looked at different options, we decided on Class B. and Airstream was the ultimate choice.... so here we are

Placed the order 4 months ago, finally we got the call last Thursday from our local dealer the coach is ready (a month later than ETA)

2021 Interstate Lounge Ext, 4WD

a quick question for those who park their cars outside (i assume most do?), I'm in Socal and the interior temp can get up to 130F during the day in summer. do you leave the rooftop fan on auto and windows open?
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Old 09-30-2020, 04:51 AM   #2
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Quote:
Originally Posted by mike2016 View Post
...

a quick question for those who park their cars outside (i assume most do?), I'm in Socal and the interior temp can get up to 130F during the day in summer. do you leave the rooftop fan on auto and windows open?
Welcome to Air Forums.

Most may indeed park outside, but not all of us. My husband and I are in the greater Houston metro area and while we don't reach 130F, we live with a combination of heat, humidity, and high sun angles that wreaks havoc with ungaraged vehicles. I rent an off-site enclosed storage space and keep our Interstate there.

It's a personal preference, but we have owned ours for 6 years and given the level of upfitting investment that we have made, we hope to own it for another 10 years.

The ultimate preference for many of us would be to build private on-site garages that could accommodate our rigs. We created a dreamer-style thread here that might interest you.

Our storage unit below. I cringe when I contemplate six years of rent payments, but it is what it is. The cost of living in greater Houston is comparatively low, so I force myself to think of it as an extension of our mortgage.

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Old 09-30-2020, 06:13 AM   #3
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Orlando , Florida
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Congratulations!! And welcome to the forum!

Ours sleep outside... we turn off the red switch and let the sun keep the batteries fully charged. No issues so far.

Paint takes a beating in the Florida sun. Specially the trims pieces that are not factory Mercedes but installed afterwards by Airstream. Our is a 2018 that we ordered and took delivery on December 16, 2017

So, if you can, best to keep it outside the sun... but if you have to, then be sure to wash and wax often to keep the paint protected.

I got a cover for the fan that allows me to leave it open even when it rains. You might consider adding that.

We did 3M Crystalline automotive window film in all front windows and windshield. Heat reduction was impressive. Highly recommended.
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Old 09-30-2020, 12:26 PM   #4
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2015 Interstate Ext. Coach
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We probably have similar conditions in Ventura County and we leave the van outside with the vent open, the power off and the side windows open in the back. It's hot in there during the day but I haven't noticed any problems. The upper cabinets get particularly hot, there isn't much insulation between them and the exterior, so I'm careful about what I store up there while it's parked.
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Old 09-30-2020, 10:21 PM   #5
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2021 Interstate 24GL
Los Angeles , California
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Thanks guys for the input.

I left the power on, and set the fan on auto and the temp to 90F. this way it kicks in during the day. i also left a few windows open. the temp drop was significant.

as most of the things inside the van are household stuff, they are not really designed to withstand such high temp for long periods of time...
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Old 10-01-2020, 05:40 AM   #6
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Green Cove Springs , Florida
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You also have to think about the various adhesives used in the construction of the van. For example, For example, Velcro strips glued to the floor and other parts of the van will surrender to the heat relatively early. When you attempt to lift carpet in the back that's Velcroed to the floor, the whole thing will come loose instead, with the goopy, sticky strip of hook fabric still attached to the carpet instead of remaining where it was supposed to stay. This particular result is not a crisis, and it's relatively easy to remedy with a fresh strip of adhesive hook Velcro, but it's icky when you discover it.
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Old 10-01-2020, 06:38 AM   #7
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We use the microwave as a storage space for bread, bananas, potatoes and other things that can not stand the heat of the upper cabinets - just don't forget to remove them before using the microwave. Tried popping a bag of popcorn in the microwave without removing a potato. Couldn't figure out why it popped so poorly - 'til we later found the half-cooked potato.
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Old 10-01-2020, 10:51 PM   #8
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2021 Interstate 24GL
Los Angeles , California
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yea we don't store any food items in the van unless we are ready for a journey.

anyone has any idea if it's possible to add remote monitoring to the Czone panel? sort of like a smart home, so that i dont have to go inside the van to check batt voltage and stuff everyday

still learning about its wiring diagram...how things are connected.

also planning to add a small freezer, the stock fridge is just way too small lol
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Old 10-02-2020, 09:17 PM   #9
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2016 Interstate Lounge Ext
Pittsburgh , Pennsylvania
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My security system (compustar) will show the inside temp and battery voltage. I use an app on my phone they provide. So I can monitor anywhere.
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Old 10-02-2020, 09:27 PM   #10
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Beautiful unit, Mike!

I'm gonna go with sun exposure being worse than the heat on these rigs. I've got anecdotal evidence for this based on my experience. My rig has exterior paint and rubber degredation, but inside still looks new. And it has seen temps of 120 inside.
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Old 10-02-2020, 11:05 PM   #11
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2021 Interstate 24GL
Los Angeles , California
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Sun / UV exposure is definitely a concern, especially in Southern California.

i'm going to apply ceramic coating to the entire van, this will be a big job.... but makes washing the van a lot easier down the road. i still have some left over from my other cars, should be enough for at least the front and sides

the solution for interior temp reduction, is to simply leave the exhaust fan on AUTO, i set it to 90F. by 8pm the fan is stopped and closed.

I leave the red on/off battery button on all the time now, as the only power draw comes from the fridge and the Czone controls, which are minimal.... solar will charge the batteries full the next day.
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