Storing vegetables for the winter

We've just bought a house, and included in this lovely, new home is an under-porch root cellar. I've always wanted one, and I even bought books to teach myself how to use one (when I didn't have one and there wasn't even one in my near future- yes, I'm a bit obsessed). They use no electricity, but they can require a bit of attention and maintenance. Most storage-worthy fruits and veggies will keep for 3-6 months tops, depending on the variety and conditions.

Some veggies need a moist environment, and others need a dry one, and some need cooler and others warmer. It can be difficult to provide all conditions in one room. However, the one most important thing that needs to be provided is ventilation. Without that it won't matter if you have everything else perfect.