The Bubble dome’s frame is stable between temperatures ranging from -4°F to +140°F and withstands exposure to sunlight of up to UV index 7. In the winter, in northern climates, the dome will heat up by several degrees when the windows and door are closed, especially when it is very cold but the sun is out. If you’re out on a lake ice fishing, it will completely cut out the wind chill factor. It will require roughly 40% less heating in winter than a standard greenhouse due to the geodesic shape.