National Homebrew Club Ireland

Brewing Discussions => Equipment & Chemicals => Topic started by: Greg2013 on January 04, 2013, 02:26:26 AM

Title: Fridge for brewing ?
Post by: Greg2013 on January 04, 2013, 02:26:26 AM
Apologies because i know these pics are gonna come out huge,will ahve to get tube to tell me how to resize them from my smartphone. Anyway i have this small fridge as you see and i was wondering what use is it for brewing type purposes? Its a good make and was in constant use up to six months ago but is still plugged in just in case. ;D
Title: Re: Fridge for brewing ?
Post by: LordEoin on January 04, 2013, 04:07:11 AM
bung an FV and a heat source into it and connect it all up with an STC1000.
sorted!
Title: Re: Fridge for brewing ?
Post by: Greg2013 on January 04, 2013, 04:51:54 AM
Whats an stc1000 ? I was only asking cause i see a lot of home brewers using small fridges like this on youtube but not exactly sure for what.
Title: Re: Fridge for brewing ?
Post by: Mike on January 04, 2013, 10:43:59 AM
QuoteWhats an stc1000 ? I was only asking cause i see a lot of home brewers using small fridges like this on youtube but not exactly sure for what.

Its a temperature controller.  You hook it up to the fridge power supply and to a heat source (with the themometer inside the fridge) and it will regulate the temperature for you.  I have the stc 1000 but I dont have a fridge yet.

The heat source used by most seems to be a light bulb.
Title: Re: Fridge for brewing ?
Post by: Greg2013 on January 04, 2013, 11:00:42 AM
Ok but what about the fridges own cooling effect? Do you leave that operational? So my little firdge will be of some use eventually for brewing ?
Title: Re: Fridge for brewing ?
Post by: Greg2013 on January 04, 2013, 12:05:54 PM
Any particular place to get one tube ?
Title: Re: Fridge for brewing ?
Post by: Mike on January 04, 2013, 12:28:30 PM
QuoteAny particular place to get one tube ?

He has a link in the last post there, ebay is your only man.

I'm still in the hunt for a fridge so you are ahead of me.  Cant wait to make a decent Helles.
Title: Re: Fridge for brewing ?
Post by: Will_D on January 04, 2013, 12:45:32 PM
Quote
QuoteAny particular place to get one tube ?

He has a link in the last post there, ebay is your only man.

I'm still in the hunt for a fridge so you are ahead of me.  Cant wait to make a decent Helles.

Hi Deadman,

For all the new starters to equipment please take as look here: http://www.nationalhomebrewclub.com/wiki/doku.php

and click on the Equipment guide A to Z you find some useful info there

Will
Title: Re: Fridge for brewing ?
Post by: Ciderhead on January 04, 2013, 02:36:20 PM
http://www.nationalhomebrewclub.com/cgi-bin/yabb2/YaBB.pl?num=1355940784/13#13
Title: Re: Fridge for brewing ?
Post by: Greg2013 on January 04, 2013, 04:06:54 PM
Thanks ciderheadf that gives me a few ideas for down the road. ;)
Title: Re: Fridge for brewing ?
Post by: LordEoin on January 05, 2013, 12:28:09 AM
Just bite the bullet and buy one, you'll immediately wonder how you did without it.
€25 including delivery and you'll have it in a week.
They're a piece of piss to wire up and entertaining deciding how to encase it.

I have a heatbelt around the FV inside my fridge. If the brew gets 0.5 degrees warmer than i want it turns the fridge on, if it gets 0.5 degrees colder than I want it turns the healtbelt on. Simples!

Here's a wiring diagram I made earlier:
(http://i615.photobucket.com/albums/tt234/eoinlayton/Beer/STC1000Wiring_zps91a30666.jpg)
Title: Re: Fridge for brewing ?
Post by: Ciderhead on January 05, 2013, 12:56:57 AM
I usually set it +\- 1 degree as otherwise it cycles too much

Just double check wiring diagram that comes with your unit some have slightly different configs to lord eoins and that below
Also be careful as some on eBay have only one cycle, ie they will only heat or only cool not both

(http://i1270.photobucket.com/albums/jj605/joctcl/STCWiring.jpg)

p.s. you can never have enough of them either ;)


(http://i1270.photobucket.com/albums/jj605/joctcl/image_zpsaacd24e2.jpg)
Title: Re: Fridge for brewing ?
Post by: Ciderhead on January 05, 2013, 01:16:11 AM
Quote^ The blocks in that diagram are not really needed.

i.e. the number 1 terminal on the STC1000 can be the "block", i.e. all lives wired into and out of it.

#cheapskate

I'll be wiring up another STC1000 in the coming days and will take photos.


What size wiring are you using to get 3 wires into those pissy little moving terminal connectors :o
I'll go mad and spend the extra euro on the terminal blocks thanks.
Title: Re: Fridge for brewing ?
Post by: ColinC on January 05, 2013, 01:27:07 AM
Personally I'd be more inclined to use it as a keggerator.

Is there much more benefit of controlling fermenting temps than serving cool draght beer or have I been missing out on something huge??
Title: Re: Fridge for brewing ?
Post by: ColinC on January 05, 2013, 01:34:36 AM
Cool. Now to try sneak another fridge into the house without herself catching me......  ;)
Title: Re: Fridge for brewing ?
Post by: Will_D on January 05, 2013, 12:07:58 PM
Buy lots of STC-1000s!

They also make for a great mains powered temperature display. The beauty is that they can be calibrated via the F4 function so you can set them up against a know reference thermometer or ice water or boiling water.

The very expensive ATC-800+ or the cheaper digital battery powered or 9v powered digital thermometers do not have a calibrate function

Title: Re: Fridge for brewing ?
Post by: LordEoin on January 05, 2013, 09:28:30 PM
@ ciderhead - mine came with no wiring diagram, but it's nice to see that our diagrams are the same configuration :)

@tube - I just like the connector blocks as it I think it makes the wiring easier

@colinc - Each to their own ;)

@will_d - Are they often calibrated wrong on delivery?

I notice there's no wiki on encasing, wiring and using the STC1000.
I'll be making another soon, so I'll make a Wiki for it.
How do i upload it to the wiki once it's done?

Title: Re: Fridge for brewing ?
Post by: Ciderhead on January 06, 2013, 02:14:01 AM
I have to confess my diagram was lifted right off another forum!
The connectors make it tidy and safer ;)
Title: Re: Fridge for brewing ?
Post by: Will_D on January 06, 2013, 09:46:59 AM
Quote

@will_d - Are they often calibrated wrong on delivery?


I bought three and checked them against my accurate mercury thermometer. They were all with in 1C so I just tweaked them the odd couple of decimals of C so they all read the same.

I'd say that OOTBox they are fine but as they have the facility to be calibrated why not try it!!
Title: Re: Fridge for brewing ?
Post by: Mike on January 10, 2013, 01:00:50 PM
I have found a small undercounter fridge with a freezer in the top part - will that work with an ST1000?

You know the type I am talking about, the freezer is one shelf at the top, both fridge and freezer are accessed through the main door.
Title: Re: Fridge for brewing ?
Post by: JimmyM on January 10, 2013, 02:45:33 PM
yeah it will work - just make sure the fermenter fits. and obviously keep the stc probe well in the fridge part.

If you want to take it a bit further you can look at maybe disabling the freezer part altogether - its prob easy enough. Might even get a bit ore space if you rip it out altogether.

PS: havent got round to sampling your beer. this weekend!
Title: Re: Fridge for brewing ?
Post by: Mike on January 10, 2013, 03:22:53 PM
Quoteyeah it will work - just make sure the fermenter fits. and obviously keep the stc probe well in the fridge part.

If you want to take it a bit further you can look at maybe disabling the freezer part altogether - its prob easy enough. Might even get a bit ore space if you rip it out altogether.

PS: havent got round to sampling your beer. this weekend!

Haha good man.  Thats one of my entries into the beer competition so let me know what you think!
Title: Re: Fridge for brewing ?
Post by: DEMPSEY on January 10, 2013, 05:29:14 PM
Be careful about how you go about taking out the freezer shelf. I stripped one of these fridges down once and the cooling pipes were all one  long  run with the freezer shelf being just a double folded up pipe to create more cold.
Title: Re: Fridge for brewing ?
Post by: Mike on January 10, 2013, 07:44:51 PM
QuoteBe careful about how you go about taking out the freezer shelf. I stripped one of these fridges down once and the cooling pipes were all one  long  run with the freezer shelf being just a double folded up pipe to create more cold.

Yeah I once helped my freezer defrost with a knife bursting pipes that I didnt know were there.  That was an unexpected and unwanted bill.  :(
Title: Re: Fridge for brewing ?
Post by: Ciderhead on January 10, 2013, 08:01:48 PM
some run the stc probe wire through the drain at the back , or you can drill through the side.
The procedure to do this is that you barely pierce the outer plastic or aluminium skin with your drill bit, STOP, put a paper clip or piece of wire through in and have a bit of a wiggle to make sure there are no cooling channels present to the inner plastic wall and then drill through the plastic inner wall.
it tends to be the older fridges that have cooling channels in the side but don't take the chance, as if you compromise one its gone :(
You can also check where they are by running you fridge, then leaving the door open, water should condense at cooling channel lines
Title: Re: Fridge for brewing ?
Post by: Will_D on January 10, 2013, 08:04:29 PM
OK, No Pics, so its sweeping Assumptions:

I think that if there is only one door and a small freezing compartment then you just have a fridge with an ice box ( The ice box bit is rated at about 1 or most 2 stars as a freezer )

The only cooling system is in the freezer bit! Don't touch or you will ruin the fridge.

A fridge without an ice box is called a "larder" fridge.

A 2 door fridge freezer should have two compressors and 2 'stats so it all becomes a bit more complicated.

The good news is that given a normal domestic fridge with an ice box:

If you over-ride its thermostat and use a STC-1000 type controller it will lager beer to below zero ( mine goes to about -3C and even then the compressor is not running constantly )

I have not over-ridden a larder fridge but it may not go as cool

HTH

Will