I went to see some big sulcattas in SC today and they had the coolest enclosures and winter shelters. They got a 7'x7' rubbermaid shed with a sliding roof and built some doggie doors on the side. They then built a 4'x4' heated house inside the shed with carpet runners on the door. In the winter they can come out of the heated box and walk around the shed ( he just puts hay down ) or they can still venture outside throught the cut out doors. I like this idea because there is no worry about wind or rain on the heated box and it cost less and needs less insulation because it is a house within a house. It looks cool and I will get some pictures of it next time I go over. Just thought i would share. Jay