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Old 12-22-2009, 03:53 AM   #1
GreenMonti
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I thought I would put up my Flash boiler build. After MANY, MANY, Pm's to Kladue. I have started. Thank You Kevin for all you have done!

So I have built mine around Klaude's design. I am using copper tubing on mine instead of the SS. I bought a 50' roll of 1/4" copper tubing and cut 4 12'4" lengths. I wrapped the lengthes around a 2" PVC pipe to get nice tight wound coils. Keeping them on the pipe I spread them out to get about 1" of spacing inbetween the coils. I am using 1/2" type L as the center tube for the inlet water. I didn't take pics of the coils while they were seperate. Sorry.

Here is a pic of it as it is now.


I have decided to weld in the tubes at the bottom, because I don't really trust solder and because I am able to weld them. Kladue used compression fittings on his. I like the use of compression fittings very much so. I am just trying something different as well as I am not to sure of the brass compression fittings being able to hold up. So, I drilled holes in the bottom of the 1/2" pipe to allow the 1/4" tubes to go into it. Here are a couple of shots of that.
Reminds me of the base of a x-mas tree.


The inside.


That's it for now. I am doing a test weld tomorrow with a couple of different filler wires. I have welded copper before with no issues, I am just playing with different stuff. Stainless filler, or Silicone bronze.....

Any thoughts or suggestions are welcome. Prost.

 
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Old 12-22-2009, 04:20 AM   #2
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How will you be heating that monstrosity?

 
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Old 12-22-2009, 04:47 AM   #3
GreenMonti
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Quote:
Originally Posted by ReeseAllen View Post
How will you be heating that monstrosity?

A propane burner from a turkey fryer. In reality it isn't that big. I would guess a little over 18" long.

 
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Old 12-22-2009, 10:25 PM   #4
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How has the weld testing gone?

 
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Old 12-23-2009, 12:14 AM   #5
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Quote:
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How has the weld testing gone?

I didn't get much time to devote to the testing today but. I did get a couple small welds done. As I suspected in the begining, that copper filler would be the best. I cut a piece of romex and used the ground wire from it. It was 12 awg wire so it was a huge piece of filler for the job. But it gave me a real good idea of what to expect. I also used stainless and silicone bronze. While the welded the pieces together, they were not ideal for what I want. Here is a pic of the copper filler weld. Again it is a bit big for the job.




I also got a chunk of 6" stove pipe from a guy at work who just finished his stove install. It looks like it should be just about perfect in height.

Oh yea, I did purge the inside. Here is how it looks without cleaning.


 
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Old 12-23-2009, 02:40 PM   #6
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Dead sexy GreenMonti! Not sure if we talked about this but definitely get some clear on the finished product to preserve the finish. I kind of like the brushed finish.
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Old 12-24-2009, 12:29 AM   #7
GreenMonti
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Thank you CodeRage. Yes you mentioned to me about the clear coating to stop the tarnish from happening. That will save a lot of time polishing.

Well, I took the boiler into work today to get the lower end welded up. I decided to weld it in the bubble. (purge chamber) Since I don't have much experience welding copper, I can't say why it wouldn't do what I wanted it to do. When I did my copper gas manifold it came out like the pic above. This time......No. I showed it to a few guys at work who have done some copper and they all said "that is exactly how mine came out. Looks great for a copper weld." I am not happy. I am glad I wont ever see it.

Here it is.

 
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Old 12-24-2009, 05:13 AM   #8
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Lots of views and no thoughts. I guess I will let this one die.

 
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Old 12-24-2009, 05:26 AM   #9
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Its pretty cool, though I'm not entirely sure what its for, is it just used to heat sparge water or something? I am still quite a newb though so I may be missing something fairly obvious. Its always cool looking at these monstrous copper creations

edit: cause I'm a nerd, what temp to you plan on boiling from and how fast do you want to get how much water that hot, I assume your not going for steam, just on the verge of boiling
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Old 12-24-2009, 05:38 AM   #10
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Quote:
Originally Posted by GreenMonti View Post
Lots of views and no thoughts. I guess I will let this one die.
Just because there aren't dozens of people commenting on it doesn't mean it's not going to be useful info for someone down the line. I say keep documenting your progress and taking pictures. I know I'm interested; I just don't really have any welding or copper-working experience to share.

 
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