Can you build a temp control on the cheap?
#1
Posted 19 February 2010 - 10:54 AM
#2
Posted 19 February 2010 - 10:59 AM
For what kind of application? A fermenting chamber or a fridge, etc? What did you have in mind?Seems like you could get an old (maybe free, or close to it) house thermostat, a relay, and a few other odds and ends and make it happen.Anyone ever tried?
#3
Posted 19 February 2010 - 11:11 AM
Reason I ask is I have house thermostats controlling the heating and cooling on my fermentation chambers, but I'd have to think about how to get it to run a fridge...For what kind of application? A fermenting chamber or a fridge, etc? What did you have in mind?
#4
Posted 19 February 2010 - 11:35 AM
Yeah, controlling a fridge. It seems that if you wired (with resistors, believe thermostats us 24V) the thermostat to a relay that would close the circuit instead of triggering your furnace, it would be fairly simple.For what kind of application? A fermenting chamber or a fridge, etc? What did you have in mind?
#5
Posted 19 February 2010 - 11:44 AM
#6
Posted 19 February 2010 - 11:53 AM
What'd you have in mind? A fridge used to cool the chamber or ice or what? I helped a good friend of mind build a large chamber with dual temperature zones using a mini fridge and some insulation and other odds and ends. my setup at home is much simpler and uses ice for cooling etc. Let me know and I'll try to either link or post some pics in another thread.Which makes me think... My buddy has a thermostat running his mini fridge. It's absolutely possible KSU. Let me see if I can find the link.ETA: link knewshound builds the beastI would be interested in seeing your setup for the fermentation chamber. This is my next project and I don't see why I should spend $60 for something to control a light bulb and a computer fan. Any info would be greatly appreciated.
Edited by chriscose, 19 February 2010 - 11:57 AM.
#7
Posted 19 February 2010 - 11:59 AM
I guess I was thinking it would either be a heating or cooling chamber. I'd have to think a little more about how to do both. Bottom line, it that you either plug the fridge or the light bulb/heating pad into the "circuit". When the the thermostat says it's too hot or cold it sends a signal to the relay, which then closes the circuit to allow the fridge or heating source to turn on.What'd you have in mind? A fridge used to cool the chamber or ice or what? I helped a good friend of mind build a large chamber with dual temperature zones using a mini fridge and some insulation and other odds and ends. my setup at home is much simpler and uses ice for cooling etc. Let me know and I'll try to either link or post some pics in another thread.Which makes me think... My buddy has a thermostat running his mini fridge. It's absolutely possible KSU. Let me see if I can find the link.ETA: link knewshound builds the beast
#8
Posted 19 February 2010 - 12:05 PM
Absolutely, it's easy to use a thermostat to control the signal to a light bulb or heating pad or whatever. I use a thermostat to control my chambers, but mine aren't hooked to a fridge. I thought that's what you were looking at which is why I linked that article.I guess I was thinking it would either be a heating or cooling chamber. I'd have to think a little more about how to do both. Bottom line, it that you either plug the fridge or the light bulb/heating pad into the "circuit". When the the thermostat says it's too hot or cold it sends a signal to the relay, which then closes the circuit to allow the fridge or heating source to turn on.
#9
Posted 19 February 2010 - 12:27 PM
#10
Posted 21 February 2010 - 07:08 PM
#11
Posted 22 February 2010 - 08:52 PM
#12
Posted 23 February 2010 - 06:19 AM
This is the link you are looking for: My linkI've built two, and they work just great. Cooling down to 35 deg.mikeSeems like you could get an old (maybe free, or close to it) house thermostat, a relay, and a few other odds and ends and make it happen.Anyone ever tried?
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