ericmark
Regular.
I have thought about the cool box, to swap from cooling to heating you change polarity. The STC-1000 only has single pole relays, could use external relays, but not sure heating from above will work that well anyway. I would love to see it work, sooner or latter my fridge/freezer will fail and using a Peltier solid state unit seems a great way. Just �ã10.19 for one of these
but the base unit
is flat and most fermentors are round. The idea is really something worth thinking about. But is the plastic of a fermentor a good enough conductor? Would you need to used a metal fermentor? At ã3.95 for a 60W unit they are cheap enough, but it is the how would you use the unit.