My wife and I would like to get a dog for our family, specifically, a Labrador-type dog, but we don't want to leave it inside for extended periods. It's not as bad as us both being gone 8AM - 5PM each day, but there are times when it would be several hours.
Dogs, of course, are equipped with built-in fur coats. I wonder, if I built a very nice dog house that was dry, shaded, protected from wind and the elements (pretty much everything except for heated) and had plenty of fresh water, whether it would be comfortable in a wide range of temperatures.
Please cite a reference, actual real-life examples or experiences, or a comparison to similar dogs who live in the wild (versus saying "I think X degrees Celsius/Fahrenheit is too cold").