Forum Discussion
DeadeyeLefty
Jun 02, 2012Explorer
The idea for pulling air from under the trailer came as a result of seeing where the dog likes to hang out when we're in camp & it's away from any smoke, exhaust, etc.
I've seen people box and duct window air conditioners so that they can have a supply and a return duct while keeping the box (and its noise) outside the trailer. With a bit of ingenuity, I'll bet one could duct or baffle the furnace to draw from wherever you wanted.
UP, that's quite a project you took on. I've got a similar 'donor' trailer rotting in a field, waiting until I have the truck to move it and the place to rebuild it:

The tin is good, the frame looks good, the appliances are all there and don't look damaged. Kids have partied in it so the interior's trashed and the windows are busted out. If the stars align and I take that on, I'll probably go with foam and glass again. I would probably go with Klegecell or Divinycell for the foam and a conventional (styrene based) composite layup and prefab a bunch of flat panels.
I've seen people box and duct window air conditioners so that they can have a supply and a return duct while keeping the box (and its noise) outside the trailer. With a bit of ingenuity, I'll bet one could duct or baffle the furnace to draw from wherever you wanted.
UP, that's quite a project you took on. I've got a similar 'donor' trailer rotting in a field, waiting until I have the truck to move it and the place to rebuild it:

The tin is good, the frame looks good, the appliances are all there and don't look damaged. Kids have partied in it so the interior's trashed and the windows are busted out. If the stars align and I take that on, I'll probably go with foam and glass again. I would probably go with Klegecell or Divinycell for the foam and a conventional (styrene based) composite layup and prefab a bunch of flat panels.
About DIY Maintenance
RV projects you can tackle on your own with a few friendly pointers.4,399 PostsLatest Activity: Jan 20, 2026