It looks like my dogs prefer to live in plastic houses filled with straw. Not much difference between a plastic barrel, and a plastic dog house you pay twice as much for on Amazon.
I set up the dog houses today for winter, and guess what they moved in! New straw with no chain. They were free to pick anyplace on this one acre of fenced ground, and they chose the plastic house full of straw. You might want to learn about sled dogs before you spout off your total BS.