[rohrmann]

We have run in very cold temps that will freeze your plumbing and have used the heater while on the road with no issues. If you are traveling in very cold temps and are not winterized, you may want to consider using the heater to protect your rig. There are not that many places where we travel, with tunnels that require the propane systems to be turned off, to worry about, and we rarely fuel up with the trailer attached, so we may not be a good one to compare with.