I do not want to take over the other thread about preheating a camper so I thought that I would start this thread. I was wondering if anyone has ever done any tests to see how long the heat is mainta...
It sounds to me as if there is a hole of some kind.
My "hole" was the outdoor shower. Once I sealed it the heat loss was less than 50% of what it had been. The actual opening was perhaps 2 cm. It did have a tight fitting plastic cover plate on the outside.