Condensation
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Condensation
Just thought I'd share this. I added a USB powered fan to a "passive" moisture trap and ran a back to back test in my camper over the last 48 hours against a standard trap just to see if I was gaining anything. As you can see the powered trap removed 208cc of water while the ambient only removed 13cc. The fanned trap has now been running 24/7 for the last 3 months, running off the on board USB supply (the camper is plugged into the home mains supply). The fan came from Ebay, cost a less than £3 and was hot glued on. For my car I have a second trap running off a 10,000mAH power bank which will run for about 2 days and removes about the same amount of moisture, who'd have thought a Honda would leak that much!
![Image](https://lh3.googleusercontent.com/pw/ABLVV87CA26mMictsSYvjbJ2FF59ey_-R1AEpX9ByeUNKI_yUEVQXPQTSwETOXXalliT2EL283MKtf3-fRHFD1lMU45WBD1vDBf7lo7sB7nE_Ek9U3u2KGtmaN-OKWrnY_kArrUQ8SLq--OL_y3f_a_gl6ofGlRcBzRYRYhyH9n89D7Gw-ol9R7pqjQFpcx_psknjTnprRXTkhvOalaXEeyl_lqjIHd7xQptk2WMb0hhyCCS5yfGf_CJBzYzB-b47DAwR-SzFK9rQhny1JYiFglkKFidHZ8BeaqBp49uS77sFGyNvgCCGvqDwUVLhjLnYQ3KX__grqjIdqy-IGOQG4fJMDNP6dazyaBM1gHf1q8dRFK8x8MFhgkevlIqeyRLw3dUIJ8O-t3U1WBIY62o8q6Y4m7bQ77lj9k8SE2EFUthJXluuJwjabY2oPqxapQa53E8Yn2FwycYtq2skEqomB06EihgENWP-eiMkWOl42wv9pXCMSDXNw7SxAkzLihqC81eRvxTew6lXHF1VBPSi3oKLX06GqYJxSMN2g1B7drrTrkPXUEMVK6FnBHgGY58IFuT8qsgiUdDWM1ZQzezV7pqLYrk2yYGZZNW_4hWOws7RI1dpXUOaB5bF1Pdo4TA10YaFgBQX12phaLlkiA67W4KgsWjOzb9AmqmqpTLCTf91Dm6R19YsvR1NJ9SqoercXXoicdJUh9EDmdNXJwEIQzhT4rkn461zUFyG8y2B7W0nwoKMhHB6XilnpyRHtV_WJhv-jRi-bGEhQQ44ln_KeMtG2y-_YSed02p1cQyFfqVecd3kARqtn0yVZ6xFDfxnfBKre6cIdG5SZF4-gaAf161YpOOhdlNX6FCSVMJCrVUniXx9J16cVaZFmnbP4xTOVtQtQZDJwgJHkRlmOOmKu3NgX2pxKsG6UF_XWPx4H_GHWmcEvsOv-wkwlR5VS7yvQ=w1308-h654-s-no?authuser=1)
- Mocki
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Re: Condensation
![Image](https://i.imgur.com/vlnFPSR.jpg)
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Steve
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1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Caravelle TS TinTop Camper
- slowcoach
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Re: Condensation
That's awesome, I'm a little obsessed with relative humidity in the home too. I can't see your picture though- broken link?
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1984 TRAKKA Conversion Subaru EJ20 5 Speed
1984 TRAKKA Conversion Subaru EJ20 5 Speed
Re: Condensation
Ta dah. Pictures I hope. And it's quiet enough to let it run while sleeping in the camper. Fan is 50mmx50mm £3.98 from Ebay. Dehumidifier was under £6.00 and the cheapest refill absorbent granules £2.50 for 2kg from Homebargains.
![Image](https://i.imgur.com/2wo3wWI.jpg)
![Image](https://i.imgur.com/2wo3wWI.jpg)
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Re: Condensation
It's worth noting that damp air is lighter than dry. I used on of these, without a fan, on the floor of my camper and was very disappointed with the results. Had I put it high up the result may well have been better. The fan is clearly a great improvement.
1982 Holdsworth poptop. 2L CU Aircooled.
1982 Danbury tintop Caravelle. 2L CU Aircooled.
1982 Danbury tintop Caravelle. 2L CU Aircooled.
- bat
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Re: Condensation
Thanks, hadn’t thought about that (probably should have).
Normally just plonked the dehumidifier on the floor and left it running, I will remember in the future & put it as high as possible.
Regards Gary
Might even buy a second dehumidifier and run a comparison at different heights.
I will post the results here if I do.
Sheila's & Gary’s long-term project. A 1988 RHD diesel Syncro camper van.
1900 tdi ahu, on 235-70-R16 wheels & tires, & a few other mods
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1900 tdi ahu, on 235-70-R16 wheels & tires, & a few other mods
https://www.thebeast.blog
Re: Condensation
Dont get too obsessed with humidity in the home,70 % is fine, some people think it should be 50% but thats not natural and would need lots of heating and dehumidifying to keep it that low, parts of our house get damp in the winter so i put my Maeco DD8L dehumidifier on, its a desiccant dehumidifier so works well at low temperatures, i have a Faithfull humidity meter to check the levels ,only a fiver. For my wrapped up van i use large pieces of thin corrugated packing cardboard and on a sunny day take the cardboard out to dry then replace and cover the van up again.
1992 red lle 2.2 subaru 1990 rhd caravelle 2.2 subaru 1986 california import vanagon
- slowcoach
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Re: Condensation
Yes,I'm obsessed as in interested, not obsessed as in getting the lowest numbers. Relative humidity is, well relative... To the temperature. We have what's probably viewed as a cool house, so 70% is achievable and comfortable. If it were warmer in here, it'd be lower. It's made a huge difference to this house ![](https://emoji.tapatalk-cdn.com/emoji106.png)
![](https://emoji.tapatalk-cdn.com/emoji106.png)
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1984 TRAKKA Conversion Subaru EJ20 5 Speed
1984 TRAKKA Conversion Subaru EJ20 5 Speed
Re: Condensation
I started to focus on humidity about 10 years ago with our local newspaper giving results for the previous day then i clicked onto the BBC weather site and can now see todays and future days humidity predictions, the lowest i have seen in Jersey was 26% during a heatwave , at the moment its the opposite and very high peaking at 100% today, our house leaks air in so the house gets damp, having an airtight property would be easier for controlling humidity, higher outside temperatures can still have high humidity , its where the air is coming from for us.
1992 red lle 2.2 subaru 1990 rhd caravelle 2.2 subaru 1986 california import vanagon
- Chlorophil
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Re: Condensation
Interesting, this is my first winter with a T25 Westy, and I noticed a lot of humidity in the van over the winter. Between 0-4 degrees, I was looking at 88% plus relative humidity; my windows freeze up on the inside and outside
, and I noticed I have new black mold spots peppering the flocking of the pop top again after cleaning it all last summer. It makes me paranoid that it's leaking; it's definitely worse after the rain, but I can't find anything. I will try and replace the front door membranes when I can find some to see if that helps. It's interesting to see a modified humidity trap. I might try something like that.
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2.5 EJ251 Petrol 5 Speed
2.5 EJ251 Petrol 5 Speed
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Re: Condensation
A single adult human can exhale and sweat around half a litre of water in 8 hours overnight, it has to go somewhere!