I checked it again today after letting it sit on boards for the night and it looks like the temp difference from water at the bottom of the carboy to the top is only about 5 degrees now instead of close to 30.
I am also going to steal a fan from work, but my probes are currently completely...
I will probably try a fan if my little tweaks don't help.
Any thoughts on waterproof sensors directly in the beer? Other than careful sanitization of course.
Okay this is the first time I couldn't google a homebrewing question.
I got a chest freezer and a hot/cold power controller with a no-light heat lamp for heat and I'm trying to run some tests to see how it does keeping a fermenter full of liquid at 67 degrees. It seems to work pretty well...