I was thinking a big vertical heat pipe that sticks out like a chimney would be great for this and keep inside+outside sealed. When it’s colder outside, liquid

I was thinking a big vertical heat pipe that sticks out like a chimney would be great for this and keep inside+outside sealed. When it’s colder outside, liquid will evaporate on the bottom and condense at the top through gravity. Once it’s warmer outside, the whole process just stops. No valves, no pumps, no analog or digital controls. Ok, maybe a fan. I actually want a fridge/freezer at the cabin that works like this in fall/winter/spring. I know it’s technically moving heat from inside to outside, but I’ve got more wood than electricity to work with.