This is just a photo of our teardrop trailer's new vacuum pot hot water setup that I wrote about a few weeks ago. I had to mention it because it works so darn well! We fill up each of the containers with hot water in the morning and it stays hot for at least 9 to 12 hours. We use the hot water for washing dishes and for washing our hands after a long day on the trail. Each container can wash a load of dishes and then we fill it up again for the next morning.