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 > Another condensation ?

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Grit dog

Black Diamond, WA

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Posted: 12/16/17 12:08pm Link  |  Quote  |  Print  |  Notify Moderator

Common issue with TCs in general.
One thing that helps is change your sleeping orientation to feet forward. Your feet don't produce near the condensation as your mouth while sleeping.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

rutzbeck

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Posted: 12/16/17 04:11pm Link  |  Quote  |  Print  |  Notify Moderator

I had the same problem in my Bigfoot when I sealed the vents. It kept in the warm air but also the moisture. I now almost always have the vents open at least 1 inch. After my shower in the morning I run the exhaust fan for at least 30 with the heater on with the vents opened even more. Hot air seems to carry out more of the moisture. A fan up at the head of the bed helps a lot also.

RickW

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Posted: 12/16/17 05:59pm Link  |  Quote  |  Print  |  Notify Moderator

As others have noted, moisture from respiration (or cooking and propane appliances) plus cold surfaces with lack of circulation equals condensation.

I built a small air to air heat exchanger (described somewhere in the archives here) to remove moist air and bring in drier air. Basically it has 2 small 12 volt fans, one to bring air in and one to exhaust air out. I have had very little condensation and no condensation problems when using it.

More importantly here, I use a 1-1/4 inch plastic bilge hose to direct the fresh air where I want it. I found I want it near the head of the bed. We are talking about a very small flow rate, maybe 1-5 CFM, that makes all the difference. The hose is easily run alomg the edge of the mattress.

In my opinion, a small forced ventilation system directed to the nose area will improve your situation.


Rick
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coolmom42

Middle Tennessee

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Posted: 12/16/17 06:55pm Link  |  Quote  |  Print  |  Notify Moderator

The material that goes under the mattress is called HyVent. It is a firm material that resembles many layers of nylon mesh. Highly recommended for use on any platform bed in a poorly insulated area. Otherwise, moisture from your bodies and breathing will penetrate the mattress and condense under it, resulting in mold growth.


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free radical

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Posted: 12/16/17 08:27pm Link  |  Quote  |  Print  |  Notify Moderator

coolmom42 wrote:

The material that goes under the mattress is called HyVent. It is a firm material that resembles many layers of nylon mesh. Highly recommended for use on any platform bed in a poorly insulated area. Otherwise, moisture from your bodies and breathing will penetrate the mattress and condense under it, resulting in mold growth.


Something like this?

https://www.defender.com/product.jsp?path=-1%257C2276179%257C2276186&id=1818021

billyray50

North Dallas

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Posted: 12/17/17 06:50am Link  |  Quote  |  Print  |  Notify Moderator

coolmom42 wrote:

The material that goes under the mattress is called HyVent. It is a firm material that resembles many layers of nylon mesh. Highly recommended for use on any platform bed in a poorly insulated area. Otherwise, moisture from your bodies and breathing will penetrate the mattress and condense under it, resulting in mold growth.



It is called Hypervent and it is pricy. I purchased a product few years back for a previous TC called Dry mesh that worked good but forgot to remove it when TC was sold. It was much cheaper than Hypervent. Cannot find a U.S. distributor now. I use blue or pink foam board that's works good too for around 10.00 bucks at Lowes.

SideHillSoup

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Posted: 12/17/17 08:20am Link  |  Quote  |  Print  |  Notify Moderator

free radical wrote:

coolmom42 wrote:

The material that goes under the mattress is called HyVent. It is a firm material that resembles many layers of nylon mesh. Highly recommended for use on any platform bed in a poorly insulated area. Otherwise, moisture from your bodies and breathing will penetrate the mattress and condense under it, resulting in mold growth.


Something like this?

https://www.defender.com/product.jsp?path=-1%257C2276179%257C2276186&id=1818021


That is the stuff we have under our mattress and that Northern Lite now puts under the mattress in their new rigs.
Soup.


2018 Northern Lite 8-11 EX Dry Bath
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RamblinAnne

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Posted: 12/17/17 12:42pm Link  |  Quote  |  Print  |  Notify Moderator

SideHillSoup wrote:

free radical wrote:

coolmom42 wrote:

The material that goes under the mattress is called HyVent. It is a firm material that resembles many layers of nylon mesh. Highly recommended for use on any platform bed in a poorly insulated area. Otherwise, moisture from your bodies and breathing will penetrate the mattress and condense under it, resulting in mold growth.


Something like this?

https://www.defender.com/product.jsp?path=-1%257C2276179%257C2276186&id=1818021


That is the stuff we have under our mattress and that Northern Lite now puts under the mattress in their new rigs.
Soup.


x2 - I have had this hypervent under my mattress since day 1 and never had any issues with condensation. (I full time and cook often).


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markchengr

Seattle

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Posted: 12/18/17 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

We have a 2008 Northern Lite. Initially we had the condensation problem under the mattress in cold weather. Bought some Hypervent online, laid it under the bed so that a bit of it curled up vertically along the head end and no more problem. It was pricey but in my opinion it was money well spent. -Mark.

Wardster

Kingston, Ohio

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Posted: 12/19/17 05:27am Link  |  Quote  |  Print  |  Notify Moderator

Install Hypervent under your mattress to resolve the issue


2016 Northern Lite 8'11" Q Classic Special Edition
2003 GMC 2500HD Crew Cab 4x4 - Duramax/Allison


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