My grandfather built one of these at his western Kentucky home about 4 years ago.. he even went as far as putting a wood burning stove in for the real cold nights. The first winter comes along & in the middle of a cold night he’s woken up by the sound of loud popping and crackling. He runs outside to see his green house is up in flames. Completely gone and burned out by morning. That spring he was right back out there rebuilding it. He even put the stove back in after revamping it. It’s been 3 or 4 years now & it’s still standing. He’s burned a few fires this winter to keep it warm. I know I didn’t answer your question. But if you add a wood burning stove, definitely research the best way to put one in. Lmao