Which Manufacturers make a true 4 season class A ?

Virtually all the manufacturers will have some top of the line models that meet your requirements. I have an American Coach...it meets them all. Add an Aqua Hot to the heated floors for serious winter RVing.

Foretravel will work in all seasons. I was out in 9 degrees this winter and we hold rallies in Brekenridge CO in the winter too. Heated tile floors and basement compartments. You haver aquahot and unlimited heat and hot water that runs on either diesel or electric or both.