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07-29-2017, 07:06 PM
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#1
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Senior Member
Join Date: May 2016
Location: Pacific NW
Posts: 601
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Natural Cooling via Floor Vents and Chimney Effect
I have long thought that if I had some air vents in the floor of the van, then, with the top up and poptop windows open, I could create a chimney effect, pulling in cool air from below the van and exhausting hot air through the poptop windows.
Of course, this would need to be done with screening at the vents, and some way to seal the vents during travel.
Has anyone tried anything like this?
__________________
OMG, the Silver Streak is Sold!
2006 SMB EB45ish.
5.4L, QuadVan 4x4
Ready to Rumble!
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07-29-2017, 07:16 PM
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#2
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Site Team
Join Date: May 2007
Location: Southern New Mexico
Posts: 10,179
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__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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07-29-2017, 07:19 PM
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#3
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Senior Member
Join Date: May 2016
Location: Pacific NW
Posts: 601
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Quote:
Originally Posted by BroncoHauler
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I use that approach currently, with windows open, but no screens--not a lot of bugs around here to worry about. But the air under the van is significantly cooler than air that comes in the windows--which is why I'm thinking about this.
__________________
OMG, the Silver Streak is Sold!
2006 SMB EB45ish.
5.4L, QuadVan 4x4
Ready to Rumble!
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07-29-2017, 10:05 PM
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#4
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Senior Member
Join Date: Jul 2011
Location: TN
Posts: 10,241
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It's gaining traction among the Transit home builders. A few of them are ventilating this way and also venting fridges through the floor. Ford Transit USA forum.
Sent from my iPhone using Tapatalk
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07-29-2017, 10:32 PM
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#5
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Senior Member
Join Date: May 2016
Location: Pacific NW
Posts: 601
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Quote:
Originally Posted by 86Scotty
It's gaining traction among the Transit home builders. A few of them are ventilating this way and also venting fridges through the floor. Ford Transit USA forum.
Sent from my iPhone using Tapatalk
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What are they using to close up the vent hole when under way? I was thinking of a marine screw-in deck plate.
__________________
OMG, the Silver Streak is Sold!
2006 SMB EB45ish.
5.4L, QuadVan 4x4
Ready to Rumble!
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07-30-2017, 04:56 AM
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#6
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Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 1,258
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I have the same ideas for my interior rebuild this fall...
I was thinking about 3 short pieces of 4in pvc pipe with some screens. But yet to really figure out the details...
__________________
Rob.
Current:
2001 E350 PSD w/ a bunch of stuff.
And had three other E350s...
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07-30-2017, 07:55 AM
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#7
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Senior Member
Join Date: Jul 2011
Location: TN
Posts: 10,241
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Quote:
Originally Posted by Glider
What are they using to close up the vent hole when under way? I was thinking of a marine screw-in deck plate.
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I don't know exactly. I've read, not seen. I have seen one where a guy fashioned a simple blade valve with a handle just under his fridge that he can push/pull to open the vent in the back for the fridge. It seems like there are lots of easy vent ideas that will work.
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07-30-2017, 09:14 AM
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#8
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Senior Member
Join Date: May 2007
Location: Beaverton, OR
Posts: 2,504
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Wow, this may date me, but I am sure I remember reading a how to on this topic in one of these magazines back in the 70's.
I do believe they used a marine screw deck plate.
-greg
__________________
-greg
__________________________________________________ ______________
"Goldilocks" 2020 Ford Transit High Roof Extended 3.5 EcoBoost AWD Homebuilt
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07-30-2017, 12:23 PM
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#9
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Senior Member
Join Date: Feb 2014
Location: Santa Maria, CA
Posts: 586
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I used an AC register meant for the ceiling of an RV, installed in the floor of my cargo trailer (though I haven't reinstalled it since replacing the floor.) It has a small knob that you twist to open and close a set of louvers. It was just something that I randomly noticed at a local RV supply place and thought "that might work!" Cost about $10 there.
Looks just like this: https://accessories.lazydays.com/dw-...MaAneKEALw_wcB
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07-30-2017, 02:31 PM
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#10
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Senior Member
Join Date: Apr 2012
Location: Philadelphia, PA
Posts: 4,208
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We'll, SMB just cuts big holes in the floor and sides and basically leaves them open, so what are you worried about? :-)
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