Very tall free-standing pole (for stove-pipe support)

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

[QUOTE=cobblerdave;133801]Gudday
Could you not make your support structure into an overhead cover for the oven with roof etc to aprox 1/2 way up the chimney height, then guy wire the remaining chimney lenght from the top of the roof structure./QUOTE]

I've attached one of my numerous earlier design ideas for the oven. As you can see, I once considered a roof. However, the current design has plants growing all over the oven, so, I don't think a roof is going to work anymore.

The basic idea of sinking a pole or two in yard around the oven to make guy wire anchor points isn't entirely off the table, I just haven't committed to it yet. I'd prefer to intrude into the yard as little as possible.

Thanks though. It's a good idea.

[cobblerdave]

Re: Very tall free-standing pole (for stove-pipe support)

Gudday
Could you not make your support structure into an overhead cover for the oven with roof etc to aprox 1/2 way up the chimney height, then guy wire the remaining chimney lenght from the top of the roof structure. Doesn't look like a chimney support but part of a roof structure around a chimney......
Just the germ of an idea.....someone might expand on this


Regards Dave
PS
the pipe in the cement but usually rust out just where it exits the cement this is the area ypu'll have to keep an eye on over time and rust proof and paint as maintenance. With wooden posts in cement in the ground don't fill the bottom of the holes with cement otherwise you make a bowl for water to sit in. Best practice is gravel at the bottom of the hole put in the post (H3? treated or better) then cement around the sides.

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

So one possibility I'm considering is galvanized pipe, the kind of typical pipe you see as vertical and top-bar struts in chain-link fences or as is occasionally used for telephone poles. Bear in mind that the idea is to construct a rigid vertical pole (wood or metal) from which to attach a horizontal arm (or two) to support a stove-pipe.

A few questions:

How thick (wall-thickness and pipe diameter) would you recommend for this purpose? I was thinking 2-1/2" or so (I'm less clear on wall-thickness).

Are there any issues setting this kind of metal into a concrete footing? Should I wrap it in plastic so it doesn't directly touch the concrete?

[Gulf]

Re: Very tall free-standing pole (for stove-pipe support)

Going back to Tscarborogh's guy wire idea. You were concerned about what to anchor the wires to and children running into the wires. How about finding locations for three posts cemented into the ground. They would need to be set at 1/3rd intervals of a circle drawn from the center of your chimney. The exact distance would be for you to decide based on the shape of your back yard. Now, here is the kicker. Dig the holes, set 8'X6"X6" posts in concrete about 3 feet in the ground. Put a flower bed around each one. Plant some ivey or running roses and train them to grow up the pole. Then and only then, tell your wife that the top of each post would make excellent anchor points for the guy wires of your chimney .

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

Kebwi,
With such a tall flue you might want to consider building in a damper to control the draw, as it might be way more than you want.
Getting rid of your neighbour would be a preferable solution.

What are the consequences of too much draw? Does it pull heat out of the oven, or actually air out of the oven so fast the fire goes out. I'm trying to conceptualize the effect here.

...and how would you build a damper into it? I can imagine some sort of hinged assembly I might put at the top of the vent, but I'm kinda winging this idea here.

Thanks.

[Tscarborough]

Re: Very tall free-standing pole (for stove-pipe support)

Google "outrigger" and "sportfisher", that is the type of guying I am talking about.

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

Kebwi,
With such a tall flue you might want to consider building in a damper to control the draw, as it might be way more than you want.
Getting rid of your neighbour would be a preferable solution.

Goes to show what I know about chimneys. I thought flues just keep the bats out of the house. I'll do some research. Thanks.

[david s]

Re: Very tall free-standing pole (for stove-pipe support)

Kebwi,
With such a tall flue you might want to consider building in a damper to control the draw, as it might be way more than you want.
Getting rid of your neighbour would be a preferable solution.

[Faith In Virginia]

Re: Very tall free-standing pole (for stove-pipe support)

Function over beauty... Besides it could be another location to hang Christmas lights from.

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

No not hanging necessarily. But the three poles coming together will make a fairly ridged point above the oven. So you could connect the pipe directly to the three poles for direct contact (no hanging) and the stove pipe will add some extra rigidity to the mix.

Ah, I get it. I can imagine the look on my wife's face if I suggest that. I don't think it's gonna work out. Thanks though.

[Faith In Virginia]

Re: Very tall free-standing pole (for stove-pipe support)

No not hanging necessarily. But the three poles coming together will make a fairly ridged point above the oven. So you could connect the pipe directly to the three poles for direct contact (no hanging) and the stove pipe will add some extra rigidity to the mix.

You could run the three poles into the ground next to the oven base for superior anchoring. They will run up the sides of the base so they won't be in the way.

I don't think you need anything a big as 2.5 to 3" if you use the tripod. I think the 1.25" or 1.5" top rail (whatever they are) will give you more then enough strength and the flexibility to draw them together over the top.

But like I said just an alternative thought.

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

Take a top rail of a chain link fence. I think they come in 10' sections. one side is necked down so you can easily put two together for 20'. Use three sections to make a tripod securing one pole on each side of the oven base and one in the rear then draw the three together over the top as a mounting location for the top of the chimney.

Not sure about the whole tripod deal (were you suggesting hanging the chimey under the tripod apex?!), but I have considered something similar to basic galvanized steel pipe (probably in the 2-1/2" to 3" range) as an alternative to the wooden post. That's sort of what I was getting at when I mentioned metal poles in the first post.

I'll think about it. Thanks.

[Faith In Virginia]

Re: Very tall free-standing pole (for stove-pipe support)

Okay here is one of those off the wall suggestions and you can take it for what it's worth to you.

Take a top rail of a chain link fence. I think they come in 10' sections. one side is necked down so you can easily put two together for 20'. Use three sections to make a tripod securing one pole on each side of the oven base and one in the rear then draw the three together over the top as a mounting location for the top of the chimney.

That's the concept, figure you could run with it from there.

Like I said just an idea.

[kebwi]

Re: Very tall free-standing pole (for stove-pipe support)

Call me crazy but I would just guy it with three wires, twice. One about halfway up, the other at the top.

I've always appreciated your input Tscar. What would you recommend I attached the wires to? The yard is a pretty odd shape. Plus, we're a little concerned about children getting wrapped up in the wires. I really don't think my wife is going to go for it.

[Tscarborough]

Re: Very tall free-standing pole (for stove-pipe support)

Call me crazy but I would just guy it with three wires, twice. One about halfway up, the other at the top.