I've got 4 rooms that count as "cellars." They're not connected together, they're in three different locations in my large build. All of them are under 7x7x7 and all of them show up green. They are all on the same elevation in the same biome. They're not all being used as cellars, but I've been moving storage vessels around to see why my main cellar isn't working right.
Storage vessels in the largest one show as .21, two of them of wildly different sizes show as .23 and the one I WAS using as my main cellar is suddenly showing .34. I have no idea why. It's 7x7x3 tall. The floor, ceiling and walls are entirely stone blocks. I even added a fireclay door, when all the others have wooden doors and I STILL can't get it past .34
What's going on?
(BTW just a heads up, wallpaper makes your cellar less efficient. When I had wallpaper up it was .45!