I found it odd that a plastic bottle of water, placed on floor under the dinett seat storage area, was frozen.
The one placed on the kitchen counter, in the open, did not freeze.
I thought that the floor insulation was same thickness as the walls, about two inches.
Also there's only 2 to 4 degreee difference in temperature inside MH as compared to the outside temp. Wal-Mart thermometers don't seem to be as accurate
Don't know if a real high end MH would be better (Which I can't afford)
Thanks in advance