Radiant Heated?

The list of standard equipment for the Seville says "Underbelly - fully enclosed, insulated w/ radiant heated tanks and gate valves". What does radiant heated mean exactly? Is this electrically powered? Can the holding tanks survive temps in the low 20's for 3-4 hours a night with just electrical power while parked in my yard?

Thanks Brad! Just the info I needed. Glad I didn't just assume it was electric (as I originally did) and end up with frozen plumbing.

Good to hear, Lenny. Did you set your thermostat down at night or when you were gone?

While the furnace ductwork is the primary source of heat for the belly, it isn't the only source. There may also be a direct vent into the basement. On my Cruiser there was a 1 inch hole in the bottom of the duct. Since I rarely use the furnace I sealed it off, besides it is just a waste of propane if outside temps are NOT below freezing. Anyway, I use two oil filled heaters rather than the furnace and even that heat radiates from the living area into the belly to a limited extent. When doing volunteer work, several times I have camped for days with outside temps below freezing and never had a problem with the tanks freezing. The most severe case was in Jan. with temps between 12 F and 20 F for two days. I don't think you will have a problem.