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Old 05-09-2011, 09:20 PM   #11
ere109
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Thanks for the other threads. I've been wondering if you couldn't just disconnect the thermal switch inside the fridge and wire that to the switch on the digital thermostat - then not have to screw around with additional wiring (not that I'm knocking the concept - love it - just thinking/wondering in other directions).

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Old 05-09-2011, 11:11 PM   #12
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There isn't any wiring inside the thing that i can see. Might be behind the thin wall i guess, but its just the metal cooling U inside and nothing else. I know it doesn't have any settings to it, so it must just have a set temp that tells the compressor to shut off.

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MAD Brewing - MAD Beer, Brewed Here!

Currently fermenting:
Ale Pail - Mohave Red
6gal carboy -
5gal carboy -
5gal bucket -
3gal carboy -
Bottled:
Rogue Dead Guy Ale | Apfelwein | Autumn Amber Ale

Kegged:
Hop Valley Alphadelic IPA

Next up: IPA of some sort
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Old 05-10-2011, 01:59 AM   #13
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Ok. I have a full-size fridge with a temp controller knob - no temp settings, just "cold" or "colder" and I wondered if I could just remove that and wire in the leads... I'll do some exploring in the future. In the meantime, still watching.

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Old 05-10-2011, 03:37 PM   #14
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I put one of my 6.5gal carboys in the chamber and filled it up with water. The plywood base does bend. 2 more casters fixed that problem. I left it running overnight with the carboy and a thermometer in the top of the carboy. Started out around 7:30pm at 55 degrees. This morning at 8am it was 50. I don't know that it will get much cooler. I'm going to check again when i get home from work today. I'll also wire up a small cpu fan to a spare cpu power supply or walwart wall adaptor tonight and add that to see what kind of help it gives. I might not have to use a temp controller at all, depending on what i'm fermenting.

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MAD Brewing - MAD Beer, Brewed Here!

Currently fermenting:
Ale Pail - Mohave Red
6gal carboy -
5gal carboy -
5gal bucket -
3gal carboy -
Bottled:
Rogue Dead Guy Ale | Apfelwein | Autumn Amber Ale

Kegged:
Hop Valley Alphadelic IPA

Next up: IPA of some sort
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Old 05-10-2011, 03:49 PM   #15
broadbill
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Quote:
Originally Posted by impur View Post
I put one of my 6.5gal carboys in the chamber and filled it up with water. The plywood base does bend. 2 more casters fixed that problem. I left it running overnight with the carboy and a thermometer in the top of the carboy. Started out around 7:30pm at 55 degrees. This morning at 8am it was 50. I don't know that it will get much cooler. I'm going to check again when i get home from work today. I'll also wire up a small cpu fan to a spare cpu power supply or walwart wall adaptor tonight and add that to see what kind of help it gives. I might not have to use a temp controller at all, depending on what i'm fermenting.
How colder do you need it? Also, are you measuring the temp of the air inside the chamber or the temp of the water in the fermenter?
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Old 05-10-2011, 07:52 PM   #16
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Well i'd like to be able to try lagers, so i'm going to need it to get down to at least 40 i think right?

I tested the air temp after 2 hrs sunday night and got 40 degrees, granted thats at the bottom of the enclosure furthest away from the cooling unit i could get.

Then i ran the carboy with water overnight and have the thermometer monitoring the water temp in the carboy. Thats where it went from 55 to 50 overnight.

At the very least now i can get consistant temps for my ales.

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MAD Brewing - MAD Beer, Brewed Here!

Currently fermenting:
Ale Pail - Mohave Red
6gal carboy -
5gal carboy -
5gal bucket -
3gal carboy -
Bottled:
Rogue Dead Guy Ale | Apfelwein | Autumn Amber Ale

Kegged:
Hop Valley Alphadelic IPA

Next up: IPA of some sort
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Old 05-10-2011, 08:45 PM   #17
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That looks a lot like one I built recently. Lots of duct tape in mine too

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Old 05-10-2011, 09:02 PM   #18
impur
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Gotta love duct tape!

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MAD Brewing - MAD Beer, Brewed Here!

Currently fermenting:
Ale Pail - Mohave Red
6gal carboy -
5gal carboy -
5gal bucket -
3gal carboy -
Bottled:
Rogue Dead Guy Ale | Apfelwein | Autumn Amber Ale

Kegged:
Hop Valley Alphadelic IPA

Next up: IPA of some sort
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Old 05-11-2011, 03:29 AM   #19
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I built mine exactly like that. But I ran into trouble with the duct tape holding together at the joints where it meets the fridge. I wound up building a frame out of 1X2s and tacking the foam to it. This was attached to the fridge opening with self tapping screws and a strip of insulating tape between the frame and the fridge. a fan was needed to get the temp to regulate.

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Old 05-11-2011, 03:41 PM   #20
impur
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I'll keep an eye on the duct tape joints then, thanks for the tip. They seem to be holding well so far, maybe the metal tape is helping.

Got home and the temp in the carboy was 48.

I wired up a small fan to a wall wart last night and let it run in there for an hour. That brought the temp in the carboy down to 46. I also found the controls for the the fridge temp, they are way in the back at the top left. I pointed the fan at the control so it wouldn't have any stagnant cold air around it causing it to turn off.

I was a little worried about running a 160mA fan with a 100mA wall wart so i didn't leave it running overnight. But this morning the temp in the carboy is 40. So 48 hours for the water in the carboy to go from 55 to 40. Keep in mind the fridge was not running prior to adding the carboy, so i think it works pretty well for what it is.

And hey, i may get to do a lager yet!!!

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MAD Brewing - MAD Beer, Brewed Here!

Currently fermenting:
Ale Pail - Mohave Red
6gal carboy -
5gal carboy -
5gal bucket -
3gal carboy -
Bottled:
Rogue Dead Guy Ale | Apfelwein | Autumn Amber Ale

Kegged:
Hop Valley Alphadelic IPA

Next up: IPA of some sort
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