I have seen radiant heat done in a mobile unit without the concrete. strips of 5/8 plywood about 5" wide laid over the subfloor with gaps between them for 3/8" PEX tubing 6" on center. Then a hardwood floor can be laid directly over. 1/4" hardi board can be used for any tile areas with a flexible thin set. need a 3/8" plywood over if going to use sheet vinyl or carpet. Provided the under side of the floor is well insulated this will keep the unit warm on all but the coldest nights. when used in conjunction with some fan forced hydronic coils then it makes a four season rig. I for one like getting out of bed onto a warm floor, I find i can keep the overall temp of the interior a little lower because everything inside is warm. I plan on having hardwood floors with throw rugs in my next RV to make it easy to sweep out.
|