#21  
Old 06-25-2012, 09:11 AM
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Default Re: Very tall free-standing pole (for stove-pipe support)

Tscarborough , That's cool idea, It would work great on tall and thin poles to keep the weight down.

Also on the bright side ( pun intended) think of all the Christmas lights you could run on that rigging.
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  #22  
Old 06-25-2012, 04:50 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

It is not hard to do, with the stack he is talking about it would work with three wires on 2 sets of stays. The hard part would be ensuring the continuity of the stack, i.e. the sections would have to be welded together. 40 to fifty foot outriggers (on tapered 3-4" butt size aluminum poles) are common, and they are mounted to boats subject to extreme wave and weather conditions and high lateral loads. They work.
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  #23  
Old 06-25-2012, 07:26 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

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Originally Posted by Tscarborough View Post
It is not hard to do, with the stack he is talking about it would work with three wires on 2 sets of stays. The hard part would be ensuring the continuity of the stack, i.e. the sections would have to be welded together. 40 to fifty foot outriggers (on tapered 3-4" butt size aluminum poles) are common, and they are mounted to boats subject to extreme wave and weather conditions and high lateral loads. They work.
Wait, are you suggesting I weld the pipe sections together?!
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  #24  
Old 06-25-2012, 07:32 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

You would have to, as that design requires a stressed main member.
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  #25  
Old 06-25-2012, 07:38 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

Yikes, I have no idea what you're talking about. What is a stressed main member? The pipe pieces screw together like conventional double-walled pipe. Are you saying I shouldn't just screw them together and put them up on the oven with lateral support? Are there additional steps I need to take which I haven't considered yet? Someone mentioned a damper, so I'm doing some research into that.
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Last edited by kebwi; 06-25-2012 at 08:00 PM.
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  #26  
Old 06-26-2012, 03:11 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

If it screws together, that is good enough, what would be key with a stayed stack would be the connection at the base. It may not work after all.
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  #27  
Old 06-26-2012, 10:05 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

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Originally Posted by Tscarborough View Post
If it screws together, that is good enough, what would be key with a stayed stack would be the connection at the base. It may not work after all.
Well, now I don't know what a "stayed stack" is. This thread isn't going very well for me. I simply have no idea what's going on anymore. Half the responses in this thread introduce new (and I would suspect unnecessary) industry-specific jargon. Isn't it possible to answer these questions without requiring all members of FB to already have years of industry experience in very domain-specific terminology? I'm sorry I have to keep asking stupid questions. This has got to be at least the third time in this thread alone that I cannot understand an answer because it includes some esoteric term. Is that really necessary?

Is this going to work or not? Can I put a tall stove pipe on a Pompeii oven or not? It sounds like there are a lot of concerns and objections being raised. Is this plan just not going to work?
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Last edited by kebwi; 06-26-2012 at 10:37 PM.
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  #28  
Old 06-27-2012, 03:35 AM
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Default Re: Very tall free-standing pole (for stove-pipe support)

Sorry for the jargon, just trying to be precise. Normally a stack that tall would be enclosed in a chase and thus supported. Your main issue is going to be wind, and that type of pipe is not strong enough to be self supporting at that length.
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  #29  
Old 06-27-2012, 05:22 AM
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Default Re: Very tall free-standing pole (for stove-pipe support)

kebwi, I looked at your idea again it was not a bad idea to start with. I thought you were looking for alternative ways

Now back to your idea. Looks good but I would make a few tweaks. For your idea I would use a large diameter pipe with thick walls. 20' feet out of the ground is not that big of a deal.

If you can get your hole 5' down would be better and make the bottom of your hole large like 2'x2' then get your pole standing in it's place and fill the hole with like 8" of concrete. Fill your hole with dirt and pack it in. Then add a slab of some type at ground level around the pipe, The upper slab in the range of 4'x4'x6" thick.

With that set up that pole will NEVER move an inch.

Now I'm not sure about your connection from the pole to the stove pipe. It may work and it may not. I like parts of Tscarborough idea on rigging. You may need to have two points of stability to the stove pipe. So if you use your single pipe idea and run a horizontal bar (think of a tall ship mast) then secure the stove pipe to the two ends of that horizontal bar. I don't imagine that horizontal bar needs to be overly large or long just center a 4' bar would be fine.

Hope that helps
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  #30  
Old 06-28-2012, 06:17 PM
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Default Re: Very tall free-standing pole (for stove-pipe support)

OK, I went and looked at your oven again. You can forget that other than with 2 sets of guy wires, one at the top with about a 60 foot diameter, and another midway with about a 40' diameter.
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