Hi everyone I have a sulcata tortoise and I live in Tucson so quite warm here. He is about 4 years old and I’m trying to figure out his living situation outside for the winter. He’s got his own area in the yard. We put in a borrow about 4 ft in the ground for him with blankets when he wants to chill out. We have no plug ins in that area and I’m trying to see if we can figure out how to keep him outside in the winter safely. Is there any way we can keep him outside with no heating lamps? Please help!