Venting hot air from refer coils - Page 2 - Fiberglass RV


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Old 03-06-2015, 06:36 PM   #15
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Name: Albert
Trailer: Trillium (USA)
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I might go with one exterior up high. Looking at the second pic in Raz's last post, you can see that there is a double hull behind the stove/sink that goes up to the overhead cabinet. I think there is a couple of inches of empty space between that hull and the outer hull. I could cut a hole in the outer hull about 2 feet above the belly band. That would give a relatively tall air column for convection effect. Warm air in the space behind the fridge should rise up into that space and out the vent.
I would just need to make sure there is enough opening down low to suck in make-up air for what is venting out the top.
I also need to make sure the space behind the fridge actually communicates with the space above. Feeling around with my hand it seems like there is a horizontal fiberglass panel that separates the two. Maybe I could drill a bunch of holes in in.
I'm not worried about overheating the unit. I'm not planning to take it to Death Valley in the summer, or to Phoenix. I would just like to not run down my batteries so quickly.
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Old 03-06-2015, 07:42 PM   #16
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Name: Charlie Y
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Hot air tends to rise according to my Physics 101 class. I'd vent it outside the shell and provide an outside air inlet vent below the cooling fins, again outside the shell.
Any other method is less efficient as far as the thermodynamics of cooling.

Charlie Y
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