Well went to rack my beer yesterday and found out my heating pad is no longer heating. I thought about just buying another or getting a brew belt, but after thinking about it I realized that they both could be a waste of money.
Right now I'm fermenting in a fridge with a 2 stage controller, but I'm going to expand to a fermentation cabinet (simmilar to http://www.wortomatic.com/articles/Knews-Hound-Builds-the-Beast
). So with that in mind what would be the best long term way to add heat?
One possible way is to put the fermenter into a tub of water, use an aquarium heater and a submersible aquarium pump to circulate the water to keep the temp consistent. Crank the thermostat all the way up (always on) on the heater and use your two-stage controller to run the heater. Leave the pump always on. You can get those pieces of equipment cheap on eBay.
My $0.02 -CH