Puppys if not born outside in the winter, they sould either have a heat lamp or some sort of heater or they should be put out in the summer so they have time to acclimatise but they must have some warm bedding straw, paper or I have found barley straw to be the best.
He is not outside yet but tomorrow im am going to start feeding him in the kennel and carry this on every day then start leaving him in there for a few hours a day to see what he is like in there.
I am going to put a lot of warm bedding in his bed for him.