Nancy,
We had an igloo for our Springer. Although he never used it.....

........I can see it being pretty warm and holding up in the elements.
Actually, what happened with that igloo is kind of a sad story, but it made the dog next door, Dudley, a happy dog.
The neighbors had just had their first baby and the dad claims he became allergic to him.
SO, Walt made Dudley a little home in the garage of their home and used the igloo. He took care of Dudley until the day he had to be put down.
Dudley was safe and warm in the igloo.......Walt also set up an electric heater near it too...because the poor dog was OUT even in the coldest days of winter.