My old trailer (which I built myself) has a 1 1/2" pink foam insulation from Home Depot on all walls and 2" white Styrofoam insulation on the floor. It has an ATWOOD 26,000 BTU
furnace, which is an overkill for it being just a bit larger than the 16'
Scamp. This
furnace can make it hot inside in any weather, even the coldest Canadian winter. It can make it steaming hot at -15C (5F). The problem is it wastes a lot of
propane and
battery power. In spite of having so much insulation, that trailer looses heat fast, because of too many gaps between the foam pieces and a door that does not seal well. Still it is better insulated than a new "standard" non
fiberglass trailer - I know this because we camp together with friends who have such trailers.
Now I am planning to install that same
furnace on the
Scamp. I have no doubt that it can make the Scamp steaming hot as well. My big question mark is - is it going to hold heat better or worse compared to my old trailer. I need to make it efficient for a number of reasons, one of them being comfort. If the trailer looses heat fast, there is too much temperature fluctuation, which feels unpleasant.
So I need a reference point comparing a Scamp to a standard non
fiberglass trailer. If the Scamp is not as efficient as other trailers, I need to fix this now. This is what I am thinking based on your comments. The Scamp's insulation is only 1/8" thick Ensolite, but it has the advantage that it has no gaps. The whole shell is like one piece and is insulated everywhere (except floor and windows). It cannot be much worse compared to my old trailer, but it cannot be better I imagine.
But if I put Reflectix on top of the Ensolite and then headliner on top of the Reflectix, it will probably get better than my old trailer, which is the goal.
Based on your experiences does that sound correct?