So I'm in the process of finding my first sulcata. I am already prepared for an indoor enclosure while he/she is smaller. However I live in TN and the weather is fine outside for a good portion of the year for my tort, but our winters can be pretty cold. I'm prepared to build or modify a shed but I'm wondering what all will be needed to keep my my tort warm and healthy during the cold season. I realize a heater of some sort but I'm just looking for ideas. Does anyone here keep sulcatas where it can get cold? How do you keep them warm and healthy in winter months? Thanks