Propane Furnance While Traveling

[rclark]

Seems like a stupid question, but can you run your propane furnace while towing down the road. Never traveled in a cold area when I wanted to keep the interior of the 5th wheel from being freezing cold. We are taking a few plants and other items while we tow south for winter. Our cold (28-34 degrees) area will actually only be a few hundred (350) miles. Seems like vents might be covered up by slides?? Your opinions would be valued. Thanks