This is perfect for storing some of my potted plants for the winter. Normally we put them in the garage. This year I wanted something so I can also have some of my starter plants growing,  don't want to bring them in the house. I purchased a Smart Thermo Hygrometer to get alerts when the temps drop below a certain temperature, and I have a heater in it that only kicks on when temps drop below 60 (heats to 60). Since it is a small space the heater does not turn on much at this point. Since I live in SC, I hope that it will not be to expensive to run. Time will tell, plus we have solar.