Passive wine cellar
I'm trying to design a passive wine cellar in the basement of our new home (in Northern California, climate zone 8b in case that helps).
Ideally we would like to design it without the need for a cooling unit and we'd love advice from anyone who has accomplished that. We can also accept the temperature being above 55 F, maybe around 60F as a trade of.
Has anyone accomplished this? Any tips/advice? We are still in the planning stages so we can decide which side of the house to place the wine cellar, how to insulate it, and even give it as much as three outside walls.