I didn't say this. Where are you quoting this from?You said this..."Our winters are long and cold with a lot of snow. I don't think an outdoor heated shed would work for our long snowy winters"
...This shed cost $2000 to redo for tortoises. The ambient temp inside stays at 85 degrees when it's frozen and snowy out, no matter how cold it is outside.
You don't want to build a shed like mine, so you make excuses.
But I can tell, because no animal has died yet
Also, tortoises need exercise to aid in digestion. I don't see that in a small night box.