Sometimes small fits. I’ll bet a hundred watt bulb or two could go a long way to heating enough at night to maybe even grow stuff in the winter too.
I’d probably put that door right up to the door to my house so I wouldn’t have to go out in the cold, and give it a go. LOL.
A HUNDRED WATT LIGHT BULB?!? Are you trying to kill us all?
Thank God we have several hundred good men and women in DC to save us from the likes of you.