There lies my situation, I do not run my furnace for heat. We use a pellet stove and knock on wood I have not had a freeze problem that was not self inflected. I did have a freeze problem with the Kitchen last year and found that like Ponch the line ended up next to the belly material with no insulation between the two. I can run the furnace when it is well below zero, but so far I have not had to. I truly believe that skirting that is 100% intact with no holes is the key.ponch37300 wrote:
Another thing to remember is how the MH is designed to keep the pipes warm. They run the main lines next to the heat duct the length of the trailer. MH heat ducts aren't sealed the greatest. So heat escapes and you are actually heating the underbelly area. There is a "pocket" in the underbelly where it hangs down a bit. This pocket is designed to stay warm enough from the heat that escapes the ducts to keep the plumbing from freezing, as long as everything is intact. Like the insulation and belly material that make up the bottom of this pocket. So even if your crawl space is 0 degrees your supply line has heat tape and the pipes in the belly should stay above freezing. So when it gets really cold I might turn my heater up a few extra degrees just to make sure to keep that pocket down there warm .