Bigfoot and TripleE come to mind. Both made in Canada, but designed for cold climates. The Bigfoot has “enclosed”, heated, tanks and valves. If purchased with the optional “Winter Pkg.”, you get auxiliary rear heater, Motoraid water heater, solar reflective thermal pane windows. The previous owner of our unit ( cross country skiers) used it at a -17 F, with water in unit, with no freeze-ups. They “did” add quilted foil insulation in a few critical areas to aid in freeze protection. This is our first winter with this unit, and have only had it down to single digits, so far....with “no” freeze problems. We hope to try it out at below zero sometime in the near future!
Everything seems very quality, but... interior woodwork could be a little nicer. Has decorative wood grain plastic on some of the cabinetry. It appears to be quality, looks attractive, but... it’s not finished wood. I guess we’re spoiled by our 5th wheel!
