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Old 08-23-2013, 06:57 AM   #1
Tok
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Aug 2013
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Hey guys. I've decided to make my own counterflow chiller, and am looking for what fittings I could find at the big box stores (home depot, lowes, menards, etc.) I'm using 20' of 3/8" copper tubing, inside 20' of 5/8" rubber hose.

One design I read on here called for a 1/2" copper tee, with a 1/2" to 1/4" copper reducer fitting. Problem is none of those stores carry a sweat fitted copper reducer of that size, they all only go down to 3/8th's.
Other problem I'm running into is the 3/8" copper tube is O.D., and the copper pipe fittings are I.D.

Could you guys tell me what fittings I could find at one of these stores, to help me get on track with this project?

 
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Old 08-23-2013, 08:53 AM   #2
estricklin
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How about going from 1/2 to 3/8, and then to 1/4? They may have a bushing that reduces like that. Did you check Amazon?

 
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Old 08-23-2013, 02:26 PM   #3
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Tok - I did a write up of my chiller build here. You don't want to use the sweat fittings to adapt down to your coil diameter. You want to use a modified compression fitting. Check out the write up, there are quite a few photos describing the detail.
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Old 08-26-2013, 05:27 AM   #4
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Quote:
Originally Posted by tnlandsailor
You don't want to use the sweat fittings to adapt down to your coil diameter. You want to use a modified compression fitting.
I wouldn't really put it that way. I used the 1/2" x 1/4" sweat fitting on mine and it works great. Many people have done it that way... But, if you really can't find them, then yes, use compression fittings. Here's another write-up for a solderless version that was done here on HBT: http://www.homebrewtalk.com/f11/cheycos-cfc-9395/
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Old 08-26-2013, 07:17 AM   #5
Tok
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Thanks guys.

I ended up going with a 1/2" copper tee, 1/2" sweated thread adapter, then a 1/2" to 3/8" compression fitting.

It was the least amount of parts I could come up with for what I could find locally, maybe 6 bucks for each end.

The hose is about 19 feet, but I've got really cold water and good pressure.

Now my question is using it with my 8 gal aluminum pot.

Can I just attach a rubber hose to go down the side of the pot? I'm worried about the heat just after boiling. I suppose I could buy some more copper and make a coupler attachment, but I'm trying to keep the costs down.

What do ya think?
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Old 08-26-2013, 08:48 PM   #6
MikeInMKE
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As convenient as garden hose quick disconnects are, I've yet to find one that didn't substantially restrict the flow of water. Same goes for in-line shut-off valves.

So, if you find you have to run your wort through your CFC slowly in order to hit your desired pitching temp, try ditching the quick disconnects.
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Old 08-26-2013, 09:54 PM   #7
Tok
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Thanks, I'll keep that in mind. I did notice the shutoff valves have a much smaller opening, which is why I didn't add one. How about the hose, I was thinking trying to add a spigot. but not sure a good way to go about it. Is there a hose that'll handle the heat?

 
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Old 08-27-2013, 07:11 PM   #8
Tok
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Heading to the store now..

Hoping somebody can let me know what kinda hose will handle the heat right after boiling.

Will probably just pick up some vinyl hose unless I hear otherwise, but I'd sure like to know it'll be safe to use.

Thanks

 
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Old 08-27-2013, 07:55 PM   #9
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Don't use vinyl, it'll discolor in wort at temperature. You want silicone for flexible hose (good to 400F), or CPVC (hot water pipe) or PP for less flexible hoses. Or use a copper dipstick with the hose pushed over the end of it.

But you might find it better to fit a weldless spigot to your brew pot ASAP. The online kits are a lot cheaper for stainless than going to a local hardware store for hard to find parts.

 
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Old 08-27-2013, 09:05 PM   #10
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Sweat fittings worked fine on mine. Water flows very well.

Wort In/Out

H2O In/Out

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