cold weather towing

[Gtrom48]

Does anyone travel with their furnace running?

[18CrewDually]

Not intentionally. We did it by accident in January heading north from Florida. By the time we hit NC temps were in the 20s or so. The furnace running did not help and the kitchen sink sprayer actually froze and cracked. The draft of towing at highway speeds, I believe, sucked the heat out faster than the furnace can keep up.

[5picker]

This has been discussed here several times before.
If I recall correctly the mix was about 35% do vs 65% don't.