Furnace/heater for enclosed trailer?

[Firecatab]

What are you guys using for plastic pipe? I would like to do the same with the white pipe rather than metal

 

[DUKHTR3]

I used 4" sewer pipe witch is thinner wall then schedule 40. I found it in white. U may have to shop around to find white most places sell green sewer pipe. I drilled 1" holes where I wanted to have air blow on clothes, and ran the end to the floor. It works great and looks a lot better with the white pipe.

 

[Firecatab]

ok I now have everything hooked up (furnace) including a couple of additional 12v lights and when I turn them on they take awhile to come on and then will get brighter once the switch is on for awhile. Didn't notice this when I had it hooked to the truck only when it is running off of the separate 12v battery in the trailer. How are you guys grounding the trailer so it will work unhooked from the truck?

Or at least I think it is a ground that is causing this because when I set it on the hitch everything works fine!!