Well the idea worked on the bench when we cobbled it together a few weeks ago with a home made burner and some scraps. Today I got a real burner and a pump in the system and tried it out in the trailer.
WORKS GREAT!!!
I need some bigger fans as the inlet and outlet temperatures before and after the radiator aren't drastically different and I think I could pull more heat from the system, but I was getting 110º air at steady state and it was enough volume to warm things up. I'm going to add some ducting so that it's re-circulating the air though the trailer rather than drawing in fresh air which will help as well. I'm very pleased. Just need to get it all permanently in place and plumbed.
