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Old 12-29-2011, 11:09 PM   #15
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Hi, In all of our travels, we have had very little moisture develop in our trailer. Mostly, we just leave the round bathroom vent open.
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Old 12-30-2011, 12:22 AM   #16
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The human body expels a lot of water through respiration... There is a product called dri-z-air that is a powdered moisture absorber that comes in small packets... It's meant more for storage, but it would work for cold nights as well...
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Old 01-01-2012, 06:16 PM   #17
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Well, we are back now after a great trip down south. We had more condensation than I imagined we would have. We cook a lot, and I think that was adding to the condensation. We were not leaving any vents open at night. I think that's the big problem after reading the above posts. I will try all these venting tips before thinking of a dehumidifier. I'd rather not have another "box" to contend with. Thanks all!
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Old 01-01-2012, 10:35 PM   #18
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The aluminum interiors certainly show condensation. I'd rather see and deal with that than consider what is invisible with mouse fur interiors.

What will work in all but rainy humid conditions is to crack a Fantastic Fan open and open a window to rest on a turned up latch. Such circulation to the outside allows evening out of high interior humidity brought about by cooking -- and prevent that morning buildup of humidity from the unfortunate necessity of breathing overnight. Nothing will collect condensation like sealing it up tight and expecting your air handling system to remove humidity.

Yes, you probably don't need to vent so much if it's warm enough outside to air condition. But in cool conditions where the windows and interior skin drop below the dew point, definitely plan on keeping a window ajar. I crack open a window at the other end of the trailer from where we sleep, will gladly run the furnace on about 55-58° and wake up to relatively clear windows. The propane sacrifice is minimal and worth it in my opinion. Running the furnace motor is a different factor if boondocking. Bring plenty of effective bedding, dial down the thermostat and enjoy finding your own equilibrium.

Plenty of posts on this subject can be found if you search the forum on the single word, 'condensation.'
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Old 01-01-2012, 10:44 PM   #19
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The aluminum interiors certainly show condensation. I'd rather see and deal with that than consider what is invisible with mouse fur interiors.
Hi, other than the normal wetness in the shower stall, my Safari only has had some condensation in the roof vents and window glass. It's the bare glass and bare aluminum that attracts condensation.
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Old 01-01-2012, 10:57 PM   #20
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Hey Redwood guy- when I saw Redwoods and Condensation it made perfect sense. We live in the redwoods and winter condensation in the house and the trailer are problems. I get condensation from the trailer just sitting, its so damp here (3/4 mi from the ocean). We had the best luck with a dehumidifier. You might also try dehumidifying products in conjunction with small fans. If you're in a humid area, cracking the window won't do much- so what did you find worked?
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Old 01-02-2012, 09:08 AM   #21
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Hi, other than the normal wetness in the shower stall, my Safari only has had some condensation in the roof vents and window glass. It's the bare glass and bare aluminum that attracts condensation.
This is true. The mouse fur and padded ceiling is a thermal break. No condensation occurs on these surfaces. BUT, the windows, vents, storage compartments, etc are still a concern. Many hidden areas which we don't see are also susceptible, like battery boxes, under sink and behind counters.

I still like the dehumidifier route. So far, I am really pleased with this one. Small and quiet. It's still new, so time will tell, but it stores pretty easily at only < 6" deep.

NewAir AD-250 25 Pint Portable Room Dehumidifier With Automatic Shut-Off - FREE GROUND SHIPPING!
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Old 01-02-2012, 09:15 AM   #22
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Hey Redwood guy- when I saw Redwoods and Condensation it made perfect sense. We live in the redwoods and winter condensation in the house and the trailer are problems. I get condensation from the trailer just sitting, its so damp here (3/4 mi from the ocean). We had the best luck with a dehumidifier. You might also try dehumidifying products in conjunction with small fans. If you're in a humid area, cracking the window won't do much- so what did you find worked?
So far, I don't know. We've only had the trailer 3 weeks! Next outing we'll try the tips here mostly about leaving vents open a bit.

BTW, we owned property at SR for a couple years and wanted to build a house, but never could put all the right pieces together with jobs and things, so we sold the property. But it is one of my favorite places on earth. And if I recall, there is a LOT of moisture there.
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Old 01-02-2012, 11:30 AM   #23
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I'm pretty sure the solution is pretty geographically dependent. I know, here in the midwest, when you get those cold spring and fall nights with rain/sleet/snow, humidity is high and interior moisture is WAY more than the cool humid outside air will handle.

You'll just have to see what works for you. I anticipate my dehumidifier will come in and out of the AS, depending when and where I am going.
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Old 01-02-2012, 09:19 PM   #24
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Hey Redwoodguy, too bad the SR lot didn't work out- it's not easy to build with the seismic and septic regulations now. I'm an architect here so I know all too well the costs. I think it's absolutely true, the humidity cures are dependent on location and temperature. Good luck!
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Old 01-02-2012, 09:59 PM   #25
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Struggling with the PNW acronym???????? Please spell that one out for me. Passing interior air over a sealed hot gas fired furnace heat exchanger will not create humidity. "Wet" fuels get "wet" by the hydrocarbons in the exhaust combining with oxygen in the air and forming H2O. Gasoline, diesel, natural gas are all wet fuels. If it's happening inside...that's a problem.

If what you say is true, my gas fired furnace in my house would keep my inside air nice and moist and I wouldn't have to run a HUMIDIFIER in my home most of the winter.
The natural gas flame of a furnace in a house in also in a sealed heat exchanger, and will not add moisture to the inside of the house. It will in fact raise the dry-bulb temperature of the inside air. The result is dry wood, dry nose, etc.
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Old 01-02-2012, 10:08 PM   #26
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We are on our first trip in the new Flying Cloud. We are in Buellton, Ca. at the Flying Flags RV park. Beautiful weather and having a great trip so far. Well, except that the compressor for auto levelling my Suburban blew out and I have to have it replaced Friday at a local dealer.

But, I have a question about condensation. Night time temps are about 35F here. In the am we have quite a bit of condensation on the windows. Our dealer told us the heat pump was the best way to get rid of the condensation. So, I have been running the HP for about 2 hours in the am after we take showers and what not. What do others do?

I hope this picture posts.
The answer to most condensation problems in Airstreams is ventilate, ventilate, ventilate. Use exhaust fans with a window(s) cracked open to let in the dryer outside air. If the outside air is cold, which it most likely will be, use your furnace or an electric heater to raise the dry-bulb temperature of the inside air. Neither will add moisture to the inside air.

The fan of the furnace will keep the inside air moving giving it less contact time on cold surfaces like windows and therefor will reduce the opportunity for condensation.

Remember those tiny fans in our parent's automobile that blew air across the inside of the windscreen - they used the same principle to reduce condensation.
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Old 01-02-2012, 10:41 PM   #27
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I should have added to my reply to redwoodguy:

Using the furnace or an electric space heater to warm up the inside of the trailer will contribute to the possibility of condensation on cold surfaces like window glass. Considering the possibility of condensation; if its below 40F outside putting on a sweater is a better idea then using a heater (of any kind).
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Old 01-03-2012, 12:14 AM   #28
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SRW - - Wow - - if it's lower than 40F I am going to need more than a sweater! Thanks for those comments. I understood them and will revise our practices.

I assume though that using the propane cooktop DOES add moisture - correct?
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