Being from the metro Phx area on farm land, we have 3 adult sulcatas outside. We have a heated LARGE house for them for the nights. We go out every evening, ensure they are all inside, shut the doors, and turn on the radiant heater. Keeps temps about 80-85 in there. I keep it on until outside temps hit at least 65 & sunny. Each morning I go out and open the doors so they have access if they want to go out. Our days typically get from the mid 60s to mid 70s all winter but the nights do get cold....into the 30s and 40s. We made the tortoise house big enough that if they are stuck "inside" for a couple days, they have room to stretch their legs. It's a "process" each morning and evening going out and opening/closing doors and such, but it's worth it for them. For our other, younger tortoises (galaps, stars) we put them outside in their pens when the sun is out and 'warm', but before sunset we bring them in. We have a large box for each species w/ lights, heat, substrate, and hide box. AZ climate is fortunate to be sunny and typically warm enough for a few hours each day to get outside. I feel bad for the colder states....I'm sure it's hard!
Well, that's how we do it in AZ...…....
Do you put the night box in your garage or an actual room in your house?It gets cold, below freezing, with plenty of snowstorms here in Maryland. Our Summer ends about 1 October and summertime warm temps start in early May. During these “frozen times” our Sully has his own heated indoor room, about 400 sq feet, with a heated night box kind of like Toms, but not double walled. Night box has a kane heat pad on the floor, RHP in the ceiling connected into a thermostat. Out in the larger enclosure I also have a space heater, misc lights. Grazing area, some slate pieces under a basking light. A few large terra cotta food dishes.
Here’s a quick pix of the night box before moved into “Sullys” room. Night box size 6x3x2 feet.
View attachment 283320
Hope that answers a few questions.
I think @vladimir up in Pennsylvania has a similar arrangement.