Instead I have a little indoor project. I’m going to build a brewing thermostat controlled power supply… yup, I am. :0) It will basically be a thermostat which switches power on and off determined by temperature, if it’s too hot power goes to one plug switching on maybe a fridge, if it’s too cold power goes to the plug with the heater. Simple concept. I’ll use it to regulate the temperature my beer is fermenting/conditioning at.
You can buy these things for about £80 but I’m going to make one and save myself around £50.
Step one – all the bits I need:
- Casing to mount it all too – £13
- 3 core cable – £2
- Gromit to be neat – £1.50
- Wire connectors – £2.50
- Digital Thermostat – £17
I had made one error which I didn’t realise until today, I bought a double socket but I actually needed two separate sockets so that they could be wired separately, so a wee trip to B&Q later and I was all set. (another £2.49 spent)
First thing to do was drill and cut the wholes in the box to fit the wires, the thermostat and the sockets, that made quite a mess but wasn’t as difficult as I thought, although the finished product isn’t all perfectly neat and symmetrical… but I don’t care I made it and it works!!!!
One all drilled out, I fixed the sockets and thermostat into place and then wired all the different bits and pieces together using the cable connectors. I’ve been planning this project for a few weeks so had lots of time to research and get wiring diagrams from the web or help from the friendly people at various brew forums I use.
And once all wired, I switched on and hey presto… no bang!
I set it to switch heating on at 19 degrees and cold on at 23 degrees and then tested it with a glass of water and my now very warm hands (I got quite excited). It all works perfectly and am I feeling smug??