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Old 12-13-2007, 04:53 AM   #11
smizak
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Quote:
Originally Posted by kladue
Set the carboy in a water bath and use a couple aquarium heaters to keep water bath at desired temp, insulation around water bath will reduce wattage needed to hold temp.
I've considered the exact same solution. Great minds....

I really liked that idea because the temperature of the water would be exactly the same as the beer.

It was easier for me to use the garbage can, I didn't have anything that could support the volume of the water and beer and carboy at hand. I ducted taped the probe flat against the glass carboy. The duct tape has actually eradicated any erroneous readings from noise, it might be because of the silver color being conductive and shielding my probe.

My controller would work with any heating/cooling device that works with AC. I have access to some solenoid valves that would work for cooling in the summer when used with a water bath.
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Old 12-13-2007, 10:33 AM   #12
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Quote:
Originally Posted by kladue
Set the carboy in a water bath and use a couple aquarium heaters to keep water bath at desired temp, insulation around water bath will reduce wattage needed to hold temp.
http://brewing.lustreking.com/gear/fermwarmer.html
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Old 12-13-2007, 04:40 PM   #13
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Originally Posted by BuffaloSabresBrewer
Get a can of high temp spray paint and paint over the bulb. No more light to worry about.
This is a great idea. I've been casually searching for an electric heating pad for a few weeks now, but this is easier and cheaper (I've already for a light bulb socket)..

I just painted a bulb.. guess I'll see how well it works in a few hours.

I'm going to put mine in my fermentation fridge to keep a very tight swing. In the winter (now), it will be mostly heating, and summer mostly cooling. I don't want to mess with water (baths) and I've got a spare output (or 6) on my controller...

Thanks!

S
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Old 12-13-2007, 11:31 PM   #14
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I'm Socal as well. I have had good luck with a heating pad under the corner of the tub of water I put the carboy in. I slide more or less of the pad under the tub to adjust the temp. The tub of water really helps dampen out temperature fluctuation.

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Old 12-14-2007, 12:19 AM   #15
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Quote:
Originally Posted by smizak
I built a little heater that consists of a light bulb mounted in a coffee can with both ends cut out and a computer fan taped on one end.

I also built a temperature controller using a Atmel Microprocessor and an LM86 temperature control chip, which allows you to use a small transistor as a temperature probe. I put my carboy in a foam insulated plastic garbage can, tape the probe to the carboy and hang the lightbulbcoffeeheater thingy on the edge. Creative positioning of some black plastic contractor bag material shields the beer from the light bulb. Has worked well so far.
Is this for real?....?....?

I actually ripped the temp control off of my furnace, duct taped it to the side of the carboy, then grabbed my acetylene torch and pointed it at the carboy. The thermostat is hardwired to a squirrel's brain which is running on a miniature treadmill and is next to a box of strikeanywhere(TM) matches. When the temp of the wort drops below 60F, the squirrel is spurred into action by a low level electrical stimulus - at which point he strikes a match. This lights the torch which heats the wort. When it hits 70, the thermostat ceases shocking the squirrel, at which time he drops the match and the torch is extinguished.

Simple!
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Old 12-14-2007, 05:43 AM   #16
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Quote:
Originally Posted by blacklab
Is this for real?....?....?

I actually ripped the temp control off of my furnace, duct taped it to the side of the carboy, then grabbed my acetylene torch and pointed it at the carboy. The thermostat is hardwired to a squirrel's brain which is running on a miniature treadmill and is next to a box of strikeanywhere(TM) matches. When the temp of the wort drops below 60F, the squirrel is spurred into action by a low level electrical stimulus - at which point he strikes a match. This lights the torch which heats the wort. When it hits 70, the thermostat ceases shocking the squirrel, at which time he drops the match and the torch is extinguished.

Simple!
Ha!

I know, I know, it sounds complicated.

I work for an electronics research and development laboratory and I have access to a whole stockroom of parts. I actually built the whole controller and wrote the software in a couple hours. I hate spending money on stuff I can easily build; better, and customizable. I could have bought a heated carboy blanket thingy and temperature controller, but I had the lab and a coffee can, so f@#k it. More fun anyway.
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Old 12-15-2007, 04:34 PM   #17
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That is exactly what I was looking for...thanks!

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