After a few years of homebrewing, it's about time that I made the leap to fermentation temperature control. Anytime you see a thread on a brewing forum that asks what the biggest improvement in a homebrew system is, the overwhelming response is usually temperature control.
While temperature control is important in both the mash and in fermentation, for mashing I'm still relying on an old school dial thermometer. Soon enough I'll order a thermopen to lock in my mash temperatures, but first I wanted to take care of the fermentations.
To start, I got a minifridge off of Kijiji, and took the door off. The fridge was too shallow to fit a carboy inside, so I decided to make a 6" wide wooden frame to extend the front of the fridge.