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Old 02-03-2009, 08:37 PM   #211
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Others on this thread have built 20' ones with good results. I think you can even get down to 16' but it really depends on the temp of the cooling water on how short you can really make it.

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Old 02-15-2009, 06:01 PM   #212
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So I finally got around to doing the last steps in building this. Sliding the copper reducer over the copper line was really really difficult. I ended up having to take a drill bit to the reducer to make it work. But I have tested it and everything works well, no leaks.

I did not put a second reducer/fittings at the top though. I just let the water come out of the hose however it wants to and the copper line extends about 12" past the end of the hose. Any problems with this style of setup?

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Old 02-15-2009, 07:49 PM   #213
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The rate of cooling does depend on length (surface area). but it's also a function of the mass flow rate (lb/s) of both the wort and the cooling water.

Mass flow rate = density x avg. velocity x cross-sectional area of tube/annulus

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Old 02-15-2009, 10:02 PM   #214
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Default Quick disconnects

Wow, I read through all 23 pages of this thread. There's some great stuff here. I was looking for some ideas on installing quick disconnets to the wort side of my CFC (recently built using this very tutorial). Just wondering what's worked well for others before I go and start ordering parts.

Thanks

Scott.

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Old 02-16-2009, 12:07 AM   #215
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Quote:
Originally Posted by zombeer View Post
Wow, I read through all 23 pages of this thread. There's some great stuff here. I was looking for some ideas on installing quick disconnets to the wort side of my CFC (recently built using this very tutorial). Just wondering what's worked well for others before I go and start ordering parts.

Thanks

Scott.
I use a male QD on the wort inflow and a 1/2" barb on the output. The hose on the output stays on at all times, which is the only reason there is not a QD on it. I really like the QD, especially since all the rest of my equipment has them. Much better especially when using a pump.
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Old 02-16-2009, 12:32 AM   #216
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I'm building one of these very soon. Thanks Bobby for your imagination and ingenuity. You helped me convert my kegs, and now you are helping me with a CFC. Two questions for everyone though...

1. I'm not quite sure how quick disconnects attach to the set-up. Both to the spigots and to the chiller. They sound almost like a necessity if wanting to be economical in the brew day. I don't know where to get them, don't know what they look like, and don't know how to set them up. Anyone got pics of how they are connected and part numbers for some brass or SS versions? Plastic sounds too easy to contamination to me.

2. More for Bobby but if anyone has any ideas...why do you think the coils of a chiller has to be lower than the inputs and outputs of the wort and coolant? Is it a pressure thing? Or is it a syphon/contact thing with both the wort and coolant? I don't want to have to wait 10 hours for my first 10 gallon batch to cool to room temp.

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Old 02-16-2009, 12:59 AM   #217
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You can attach male QDs to your boil kettle and then clamp a high temp hose to your chiller with female QD (that has a hose barb on it). That way you only need one set of QDs.

The part numbers from mcmaster.com are on my website Equipment

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Old 02-16-2009, 03:58 AM   #218
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Thanks mano! Appreciate it.

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Old 02-16-2009, 04:18 PM   #219
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I built a 25 foot cfc based on this thread, but used the compression fittings since I had little soldering experience at the time. I put quick connect fittings on the coolant side of this as well as a small ball valve to control the water from the faucet. My tap water is running about 50 degrees, so I really need to throttle back the water to get the output into the carboy around 65 degrees.

I am using gravity, so the flow is pretty slow, and dialing the temp takes some time since changes of the flow of coolant take about 20 seconds to register on the thermometer.

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Old 02-17-2009, 01:22 AM   #220
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Originally Posted by bzomerlei View Post
...My tap water is running about 50 degrees, so I really need to throttle back the water to get the output into the carboy around 65 degrees.

I am using gravity, so the flow is pretty slow, and dialing the temp takes some time since changes of the flow of coolant take about 20 seconds to register on the thermometer.
bz, that set-up is sweet. You got a close up of the connection with that thermometer?
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