Do all MHs with the hot water heat systems have heated floors, or is that just a unique feature on some brands? I've heard them talked about but don't see them advertised in the features very much.
We have the electric pads under our floors (4 zones). It's amazing how well they maintain temperature. They never feel hot to the touch, maybe just slightly warm but they sure help keep things toasty!
We have wood flooring and it works well. If it's an option, I would suggest it.