HERMS copper pipe size - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > HERMS copper pipe size

Reply
 
Thread Tools
Old 04-06-2011, 05:56 PM   #1
CanadianNorth
Recipes 
 
Aug 2009
Newfoundland, Canada
Posts: 117


Thinking of eventually building a herms system.

IT seems most people go for 1/2 inch copper tubing, that I have seen. Is there a benefit to this? 3/8 is a fair bit cheaper, and wouldn't it have more surface area to dissapate heat?
__________________
.
It's just beer man.... they've been doing it for years......

 
Reply With Quote
Old 04-06-2011, 06:06 PM   #2
benbradford
 
benbradford's Avatar
Recipes 
 
May 2007
Denver, Colorado
Posts: 1,010
Liked 34 Times on 30 Posts


3/8 has less surface area...water would spend less time in coil also...it is all about efficiency, if you want things to happen faster, go with 1/2, if you want to spend less money, go with 3/8. I went with 25 feet of 3/8, and then when money was available to put into the hobby, I added another 25 feet with a compression fitting connector.
__________________
I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.
Jerry Garcia

 
Reply With Quote
Old 04-06-2011, 07:26 PM   #3
CanadianNorth
Recipes 
 
Aug 2009
Newfoundland, Canada
Posts: 117

Ok. I currently use 3/8 for my chiller, 50 feet with a connector. I will look at the price difference and decide.
__________________
.
It's just beer man.... they've been doing it for years......

 
Reply With Quote
Old 04-06-2011, 07:31 PM   #4
Ohio-Ed
HBT_LIFETIMESUPPORTER.png
 
Ohio-Ed's Avatar
Recipes 
 
Nov 2008
Posts: 2,067
Liked 20 Times on 19 Posts


Quote:
Originally Posted by CanadianNorth View Post
Thinking of eventually building a herms system.

IT seems most people go for 1/2 inch copper tubing, that I have seen. Is there a benefit to this? 3/8 is a fair bit cheaper, and wouldn't it have more surface area to dissapate heat?
With a HERMs coil, you are at the mercy of your pumps capacity. 3/8" copper will have more resistance and you will have significantly less flow which may or may not be a problem.

3/8" is fine for an IC because typically you use residential water pressure.

Ed

 
Reply With Quote
Old 04-07-2011, 12:24 AM   #5
CanadianNorth
Recipes 
 
Aug 2009
Newfoundland, Canada
Posts: 117

Quote:
Originally Posted by Ohio-Ed View Post
With a HERMs coil, you are at the mercy of your pumps capacity. 3/8" copper will have more resistance and you will have significantly less flow which may or may not be a problem.

3/8" is fine for an IC because typically you use residential water pressure.

Ed
Good point. I hadn't thought of it that way......
__________________
.
It's just beer man.... they've been doing it for years......

 
Reply With Quote
Old 04-07-2011, 04:28 AM   #6
EarthBound
Recipes 
 
Mar 2010
Beer Capital of the World
Posts: 1,069
Liked 12 Times on 11 Posts


Just to clarify things up for the many people that read this, please specify OD or ID when you say 1/2" or 3/8", please thank you.
__________________
"You can do anything you set your mind to when you have vision, determination, and an endless supply of beer."

 
Reply With Quote
Old 04-07-2011, 04:30 AM   #7
o4_srt
Recipes 
 
Jan 2010
Lancaster, PA
Posts: 1,330
Liked 14 Times on 14 Posts


Quote:
Originally Posted by EarthBound
Just to clarify things up for the many people that read this, please specify OD or ID when you say 1/2" or 3/8", please thank you.
1/2" is id for rigid copper pipe, 3/8" is od for copper tubing. A 3/8" to 1/2" rigid adapter will not join the two, found out the hard way yesterday. You need a 3/8" compression to 1/2" slip fitting to accomplish this.
__________________
Facebite Brewing

Conditioning: Muddy Paw Nut Brown Ale, Jump The Fence Independence Cream Ale

 
Reply With Quote
Old 04-07-2011, 03:26 PM   #8
rcrabb22
HBT_LIFETIMESUPPORTER.png
 
rcrabb22's Avatar
Recipes 
 
Jun 2008
Illinois
Posts: 718
Liked 25 Times on 18 Posts


Quote:
Originally Posted by Ohio-Ed View Post
With a HERMs coil, you are at the mercy of your pumps capacity. 3/8" copper will have more resistance and you will have significantly less flow which may or may not be a problem.

3/8" is fine for an IC because typically you use residential water pressure.

Ed
I currently have 1/2" OD copper HERMs and I have to restrict the flow to such a degree that I think 3/8" would have been a viable option.

hot_carl Likes This 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
cleaning copper pipe red123 Equipment/Sanitation 9 01-28-2012 10:32 PM
Best Place to Buy Copper Pipe? stjackson Equipment/Sanitation 7 02-15-2011 01:33 PM
Chemicals on copper pipe? Dgonza9 Equipment/Sanitation 11 02-08-2011 01:24 PM
Questions about copper poisoning/copper pipes + hoses in herms system kingoslo Equipment/Sanitation 32 08-24-2010 12:43 AM
Cleaning copper pipe 2nd Street Brewery Equipment/Sanitation 6 09-25-2006 09:57 PM


Forum Jump