Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Anyone use 1/2" OD copper tubing in CFC?
Reply
 
LinkBack Thread Tools
Old 07-26-2009, 03:28 AM   #1
gigidogg
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Wilson, NC
Posts: 28
Default Anyone use 1/2" OD copper tubing in CFC?

I've read the 27 pages of the "how to build a CFC" thread and it's all 3/8" OD tubing. I've already got ~40 feet of 1/2" OD and wonder if you could use it in a CFC with a regular 5/8" ID garden hose. Would 3/4" ID hose be better? Should I just buy the 3/8" copper and get it over with? Thanks in advance for the advice.

__________________

Primary: Hard Lemonade
Secondary: none
Kegged: Boddington's clone, Chocolate porter, pale ale

gigidogg is offline
 
Reply With Quote Quick reply to this message
Old 07-26-2009, 03:56 AM   #2
vitoma
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 45
Default

I believe the reason that 3/8" is used for the CFCs is because 1/2" doesn't give very much room for the cooling water to flow through.

__________________
vitoma is offline
 
Reply With Quote Quick reply to this message
Old 07-26-2009, 04:27 AM   #3
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,188
Liked 1042 Times on 696 Posts
Likes Given: 28

Default

If you used 3/4" ID garden hose, it should work fine if your coolant temp stays nice and cold.



CFC Configuration #1 3/8" OD Copper in 5/8" Hose
Wort Flow Cross Sectional Area 0.078
Coolant Flow Cross Sectional Area 0.196
Coolant to Wort Ratio 2.5

CFC Configuration #2 1/2" OD Copper in 5/8" Hose
Wort Flow Cross Sectional Area 0.149
Coolant Flow Cross Sectional Area 0.110
Coolant to Wort Ratio 0.7

CFC Configuration #3 1/2" OD Copper in 3/4" Hose
Wort Flow Cross Sectional Area 0.149
Coolant Flow Cross Sectional Area 0.245
Coolant to Wort Ratio 1.6

__________________
BrewHardware.com has a new website. Please check it out and let me know what you think!
New Stainless Steel Heating Elements are IN!
Did you know we are now a full service homebrew shop selling malt, hops, yeast (Wyeast), etc?

Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 07-26-2009, 11:58 AM   #4
Yorg
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Posts: 168
Liked 1 Times on 1 Posts

Default

I use 1/2 inch with 3/4 outer hose.
If you use, or intend to use a pump, particularly the March that everyone uses, don't use 3/8. Too much internal resistance, so very Very low flow.
If you intend to keep using gravity then, yes, 3/8 has better surface area to volume BUT:
Assuming you intend to use a single pass through your CFC to your fermenter, and if you are going to brew lagers, especially all-grain, then you will be leaving most of your wort at high termperature for too long and forming DMS.
So:
Use a CFC if you are going to use a pump, and recirculate back to your boil kettle, therfore dropping all of your wort temp at the same time, before then diverting to your fermenter. Therefore use 1/2. Additional benefit of being able to whirlpool, and avoid taking break and hop to your fermenter.
Otherwise, use an IC.

__________________
Yorg is offline
 
Reply With Quote Quick reply to this message
Old 07-26-2009, 08:46 PM   #5
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,188
Liked 1042 Times on 696 Posts
Likes Given: 28

Default

Devil's advocate Yorg, if your coolant water is pretty close to your desired wort output temp, you'd have to throttle the flow of wort with a valve anyway. The only time you can run a 1/2" chiller full bore is if your coolant is 60F or less.

__________________
BrewHardware.com has a new website. Please check it out and let me know what you think!
New Stainless Steel Heating Elements are IN!
Did you know we are now a full service homebrew shop selling malt, hops, yeast (Wyeast), etc?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 07-26-2009, 10:27 PM   #6
B-Dub
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2007
Location: Central Coast
Posts: 553
Liked 9 Times on 7 Posts
Likes Given: 3

Default

Mine is 1/2" copper with 5/8" hose. The water coming out the CFC hose is cool and I still have to throttle back the pump.

Next week I am going to try to whirlpool through the CFC with the pump and water on full blast. I did this with water a month ago and it looked promising.

BW

__________________
www.bwbrewing.blogspot.com/
B-Dub is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
3/8" copper ref tubing - HERMS coil? kcinpdx Equipment/Sanitation 0 09-22-2009 03:52 PM
For Sale - Copper tubing 25' 1/2" OR Wort chiller Elfmaze For Sale 0 07-03-2009 08:11 PM
50'- 1/2" copper tubing=$29.99 Pete08 Equipment/Sanitation 12 10-03-2008 09:45 AM
Copper Tubing Dominator6 Beginners Beer Brewing Forum 6 02-21-2008 04:21 AM
New to me copper tubing... Grimsawyer Equipment/Sanitation 1 07-19-2007 01:52 PM



Newest Threads

LATEST SPONSOR DEALS