Playing around with temp control

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Rotatorsplint

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Im new to home brewing, so much so that I have my first ever still fermenting.

But I all ready know this is a hobby which is going to take off. Im buying a garden shed just for this new found hobby but my concerns are with me living in Scotland and having such lovely cold weather im going to have to get a good temp control system for when its too cold.

So I have been playing about in the back garden tonight with some heater cable and a temperature control.
Its very rough and ready but its an experiment.
IMG-20120409-00605.jpg

IMG-20120409-00606.jpg

It works on 2 probes, one near the top and one near the bottom, the reason for this is because the controller im going to use I can set up a 'control weight' between the 2 probes. Basically I have it set up so the temp display is half way between what both probes are reading and it works around that. It should give a more even reading.

I successfully heated a bucket of water at 10c at an ambient of 11c to 15c in an hour un insulated. But as it started raining I had to abandon. Im confident this setup should maintain a temperature with ease as the cable its self was at 25c when not touching the bucket.
 
get some insulation around it and it will be excellent, don't use foam roll mat it melts :whistle:

what wattage is your cable?
 
prolix said:
get some insulation around it and it will be excellent, don't use foam roll mat it melts :whistle:

what wattage is your cable?

My plan is to use Armaflex/lagging I can get sheet insulation which will be perfect for the job. The cable is 15w/m and will be using 3 meters per fv. The cable is 15w/m at 10c and the warmer the ambient temp the less the wattage so prob all in just over 35watts
 

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