[rohrmann]

A couple years ago, we were in temps in the low teens over night, and at times barely 30 during the day, and at that time, we were using a 7 gallon tank of propane in two days. When it warmed up, use was much less. I would recommend using the rig's propane heater to help protect your plumbing system from freezing, as there are ducts into the belly area that helps prevent the lines and tanks from freeze damage.