All MetalShaping

Go Back   All MetalShaping > General Metal Shaping Discussion > Basic questions and answers
  Today's Posts Posts for Last 7 Days Posts for Last 14 Days  

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12-13-2021, 10:34 AM
John Foster John Foster is offline
Member
 
Join Date: Nov 2021
Location: Ontario Canada
Posts: 4
Default Copper Chimney Caps

Hello all, this is my first question(s).

Last summer we built a wood burning pizza oven with an 8x8 clay flue and a big outdoor fireplace with a 12X16 clay flue. We would like to make copper caps for them. We live in a high wind area. I am guessing that it would be best to cover a steel frame with copper sheeting rather than build them entirely out of copper, is that right? What gauge/weight of copper should we use? I have access to a heavy duty shear and brake at work, and My wife has a real knack for soldering. I know copper sheeting is expensive, but the prices quoted to us by fabricators are crazy, we are pretty handy at woodworking and at working with steel , is this a job we should tackle?
__________________
John Foster
Reply With Quote
  #2  
Old 12-13-2021, 08:07 PM
crystallographic crystallographic is offline
MetalShaper of the Month October '14 , April '16, July 2020
 
Join Date: Dec 2010
Location: Western Sierra Nevadas, Badger Hill, CA
Posts: 4,140
Default

Quote:
Originally Posted by John Foster View Post
Hello all, this is my first question(s).

Last summer we built a wood burning pizza oven with an 8x8 clay flue and a big outdoor fireplace with a 12X16 clay flue. We would like to make copper caps for them. We live in a high wind area. I am guessing that it would be best to cover a steel frame with copper sheeting rather than build them entirely out of copper, is that right? What gauge/weight of copper should we use? I have access to a heavy duty shear and brake at work, and My wife has a real knack for soldering. I know copper sheeting is expensive, but the prices quoted to us by fabricators are crazy, we are pretty handy at woodworking and at working with steel , is this a job we should tackle?

Lots of choices, John.
I'm going to post one topper that is:
a) fun to make
b) unusual
c) good for "high" winds. (this one lasted through one breeze at 122mph, clocked on wind gauge before gauge quit. (Platinum, AK)
d) old Norwegian design


Norwegian exhaust stack.jpg
__________________
Kent

http://www.tinmantech.com

"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.
Reply With Quote
  #3  
Old 12-13-2021, 08:19 PM
Don Papenburg Don Papenburg is offline
Member
 
Join Date: Dec 2018
Location: LaSalle county Illinois , USA
Posts: 87
Default

I put a cut clay flue liner on mine . I did however use copper for my water heater flue and the built in grill . minimum that I would use is 16oz.
__________________
Don Papenburg
Reply With Quote
  #4  
Old 12-14-2021, 12:01 AM
DarkLightning DarkLightning is offline
Member
 
Join Date: Jul 2020
Location: Simi Valley, CA
Posts: 71
Default

Quote:
Originally Posted by John Foster View Post
Hello all, this is my first question(s).

Last summer we built a wood burning pizza oven with an 8x8 clay flue and a big outdoor fireplace with a 12X16 clay flue. We would like to make copper caps for them. We live in a high wind area. I am guessing that it would be best to cover a steel frame with copper sheeting rather than build them entirely out of copper, is that right? What gauge/weight of copper should we use? I have access to a heavy duty shear and brake at work, and My wife has a real knack for soldering. I know copper sheeting is expensive, but the prices quoted to us by fabricators are crazy, we are pretty handy at woodworking and at working with steel , is this a job we should tackle?
Post a picture of your setup. I would say that if you work steel and wood, that you may be OK with whatever you do.
__________________
~Steven
Reply With Quote
  #5  
Old 12-14-2021, 02:19 PM
crystallographic crystallographic is offline
MetalShaper of the Month October '14 , April '16, July 2020
 
Join Date: Dec 2010
Location: Western Sierra Nevadas, Badger Hill, CA
Posts: 4,140
Default

flue cap square, flat top, pressed.jpg



rect. flue, standing seam, steep pitch.jpg


Here are a couple of cap ideas.

Can be made from various metals.
Soldered, pop riveted, etc.
__________________
Kent

http://www.tinmantech.com

"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.

Last edited by crystallographic; 12-14-2021 at 02:29 PM.
Reply With Quote
  #6  
Old 12-15-2021, 03:27 PM
John Foster John Foster is offline
Member
 
Join Date: Nov 2021
Location: Ontario Canada
Posts: 4
Default Pictures

These are not great pictures, they are all I have on my phone currently.
The pizza oven has since had another flue section added, and bee wrapped in brick up to 4" from the top.

20210821_102134 (1).jpg

20210712_064116.jpg
__________________
John Foster

Last edited by galooph; 12-16-2021 at 02:39 AM.
Reply With Quote
  #7  
Old 12-15-2021, 04:08 PM
John Foster John Foster is offline
Member
 
Join Date: Nov 2021
Location: Ontario Canada
Posts: 4
Default Tools Available

These are the brake and shear from work, my neighbor who is a third generation eavestrough installer has various beading machines and is a whiz at soldering too. While he mostly does modern extruded trough, he also does the copper trough on prestige homes and at the nearby pioneer village.

20211215_155141.jpg

20211215_155154.jpg
__________________
John Foster

Last edited by galooph; 12-16-2021 at 02:40 AM.
Reply With Quote
  #8  
Old 12-15-2021, 07:10 PM
John Buchtenkirch John Buchtenkirch is offline
MetalShaper of the Month October 2012
 
Join Date: Jul 2009
Location: Glen Cove, Long Island
Posts: 1,650
Default

One town over from me is Sea Cliff where many houses are built on a cliff overlooking Hempstead Harbor. Many of the residents have switched to rotary style caps because they have problems with extreme winds blowing out furnaces and hot water heaters. Iím told they are the answer to high wind problems https://www.youtube.com/watch?v=4hJW4Yry_R4 . Worth considering anyway. ~ John Buchtenkirch
__________________
John
Reply With Quote
  #9  
Old 12-16-2021, 02:16 PM
crystallographic crystallographic is offline
MetalShaper of the Month October '14 , April '16, July 2020
 
Join Date: Dec 2010
Location: Western Sierra Nevadas, Badger Hill, CA
Posts: 4,140
Default

This can be made of copper.
Soldered or copper-pop riveted.


chimbly swivel top.jpg
__________________
Kent

http://www.tinmantech.com

"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.
Reply With Quote
  #10  
Old 12-16-2021, 02:42 PM
Jaroslav Jaroslav is offline
MetalShaper of the Month April 2020, September 2021
 
Join Date: Dec 2012
Location: Czech Republic
Posts: 1,951
Default

In addition to the swivel, I saw this.



https://www.nonstopstavebniny.cz/kom...CABEgIepvD_BwE
__________________
Jaroslav
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -5. The time now is 08:34 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.