I have a CBR and live in Northern Iowa. I did search previous to posting this question. For an insulated dog house in an outside kennel what are your suggestions. I have used straw for the last couple of years. I used wood mulch one year until I read that the mulch may effect the dogs nose. The CBR will not leave any pad in the house. By the time the dog gets the pad out of the partitioned dog house it is torn up. Straw seams to be getting harder to find in my area and looking for other options. Thanks in advance.