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Old 03-02-2009, 10:34 PM   #1
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Lightbulb Cool air ducted from below trailer

I'm sure there are at least few reasons why I can't find any information on ducting cool are air into the trailer from below but figured if I didn't ask I'd be wondering for a long time.

The redesign of my 26' trailer necessitates relocating 2 of the 3 roof vents and this got me thinking.... always dangerous...

Assuming I keep 1 or possibly 2 roof vents could I use them to exhaust hotter air and draw in cooler air from below the shiny silver trailer? I haven't thought it through entirely but something like a fantastic fan mounted at floor level. It would need a mesh grill to retard bugs and I would envisage it remaining in a closed position most of the time.

Maybe the cool air could be drawn in from under the front section of the trailer and exhausted at ceiling height at the rear?

I'm leaning towards replacing the roof section and it's a shell off rebuild so most anything seems possible. The question is would I roast to death or are there other considerations?
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Old 03-02-2009, 10:44 PM   #2
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Didn't the gold trailer have a floor vent?
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Old 03-02-2009, 10:57 PM   #3
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Wally Floor

I used the hole where the floor furnace in the 60 Caravel to make a "Wally floor". It works great. Draws the coolest air through the trailer.
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Old 03-02-2009, 11:17 PM   #4
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Well it seems I'm not a pioneer! Lee does your set up just have a fan pulling the hot air out or do you draw in the cool air too? Mark, do you have any links to the gold trailer that might mention how it was arranged?
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Old 03-03-2009, 01:23 AM   #5
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Our rear bath model has a screened 'vent' at floor level in the rear bulkhead...that opens into the rear compartment...we can crack the outer compartment door to get the air flow going through the trailer from rear to front, using the fwd overhead fan...

I replaced all three overhead vents with Fantastic Fans I got from Vintage Trailer, they have grey (faux alum) covers, and the curved inside trim to match the roof's curvature - great units! The rear unit has the thermostat, so I can set it to come on when we're gone if it gets to warm inside...or at night to cycle if needed.

I can open our fwd and rear side windows to their 1st notch, turn on the F/fans on the LOW setting and sit back and enjoy the breeze - crank up all three fans to HI, and you've close to the feeling inside of NASA's wind tunnel! Those suckers can really move the air when you give them a chance...

We normally only use one or two fans to get the air moving...
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Old 03-03-2009, 06:05 AM   #6
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There was a floor vent in our 63 Safari, I installed an aux fan to draw more cool thru the trailer on hot days.
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Old 03-04-2009, 01:33 PM   #7
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Quote:
Originally Posted by truckasaurus View Post
Well it seems I'm not a pioneer! Lee does your set up just have a fan pulling the hot air out or do you draw in the cool air too? Mark, do you have any links to the gold trailer that might mention how it was arranged?
I've installed a Fantastic fan in the ceiling and it works very well at moving air through the trailer push or pull. This year I will use a furnace filter in the floor to keep the dust out of the trailer.
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Old 03-04-2009, 03:37 PM   #8
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I'm sold, One fantastic fan and a floor vent with furnace filter is going in the plan. I'm just pulling all the interior panels and caps out today and knowing it'll be a lot smoother looking when I'm done is very motivational.
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Old 03-05-2009, 10:35 AM   #9
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Just seal them well from vermin....
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