I'm wanting to build a box, insulate it and wire in a light bulb attached to a thermostat to keep it at a certain temperature (around 20c), this will be used to store my homebrew barrel and ensure the best possible brew.
The only thing I'm a bit unsure on is the thermostat and light stuff, I found this, which is pretty much exactly what I want.....
Anyone know where I can get an appropriate thermostat from (ideally cheap if not free), can I pull apart an old heater???
Any risks?? I assume having a light bulb turning on and off for a week inside a contained wooden box or so isn't too much of a fire risk??