Norcoscia, I can't help with your question, but did want to offer two things. I bought the same cooler with the same idea in mind. While the temp is very consistent, it does not use a compressor, so it is very quiet, but it does not have the power to drop the temp all that much, so in the summer if it is in the 80s or above in my garage, it won't get the temp into the high 50's or low 60's, IIRC it will move the temp about 15 degrees from ambient. If you use it in an air conditioned space that is not an issue. I also bought a small electric pad heater ( at a Walmart ) and a digital temperature control, and use it now as a proofer - it works great to start your sourdough from the kit you buy from sourdough.com, and it also is helpful for proofing bread.