I was curious how many of you have root cellars and what worked/didn't work for you when using or making them. I'm in the process of turning a large concrete room (including roof) under our porch into a root cellar. Currently it's just used for storage and I suspect that was the originally designed purpose for the room. Right now the main issue is not having vents. It's literally a concrete box with a single door into the basement and no other openings. The room manages to stay between 32-40 F with 50-60% humidity in the winter from the readings I have taken so far. Having put in a temperature/humidity sensor in the room has been invaluable for that; best $30 I have spent in a while. Getting data passively about the highs and lows and some information on how our weather might be impacting it is going to help a lot I think. I was hoping to find other nuggets like that to help with the planning/setup before we get too far into it. So, what have your experiences been?