Hi Marc,
I solved that issue by adding fans that blow into the cold air return for the furnace. It provides enough air flow to prevent freeze up--and worked better than putting a 1500 watt heater under the cabinets.
marcsbigfoot20b27 wrote:
My 4 season TT has heater ducts that heat the tanks and under belly, so I don't think I could use just the heat strip alone in sub freezing weather. I wouldn't want the tanks to freeze. Maybe have the LP heater fan only on, to recirc the cabin air down under?
It would put more strain on the strip, but no freezing.