Quote:
Originally Posted by jasin1
You could just cut a transfer grill in the wall or door
Not sure if you have the room but could also do something like this tjernlund transfer fan
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I believe that transfer fan is a 120 VAC (shore power) fan ??? OP is looking for options to warm the bathroom while "boondock camping" without shore power.
Although the concept may actually work. He could cut a "computer fan sized hole" from under the bunks (which have main cabin heat) and vent that heat into the bathroom using a 12 VDC computer fan. If it's switched, he could control how much battery power he uses or saves by deciding whether to heat the bathroom.
Conversely, another solution would be to pull the coroplast belly, connect a duct to the main floor duct system and hope there's enough air movement to push some of what's being "stolen from other vents" to heat the bathroom.....