here are some pics of the rack system my husband built for me. I designed the shelves to hold different size rubbermaid containers! the heating element is what is used in the mountains and on the east coast to keep pipes from freezing in the winter. (we live in so. calif and had to buy it in big bear) anyway...if you break the thermostat and hook it up to a dimmer switch, you have an adjustable heat source. let me know if you need better pics or any other details and I'll try to take some. these pics are about a year old. we have also found that a few of our corns can escape from the rubbermaid containers. solution...binder clips from an office supply store! enjoy!!