NEW wood stove project

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Idanro7021

New Member
Jan 1, 2015
3
Greece
Hi everyone,
I'm new here (first time). adding a photo of my stove project.
I need to decide about the secondary combustion size.
The inside pipe is 1 inch diameter.
What length, pattern, holes sizes i need to get the secondary combustion to light up?
 

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It's a neat project and many people have considered giving this a try in the past. Stove manufacturers have put many hours and tons of money into developing a safe and effective secondary combustion system. They don't give this info away free.
It's simply going to take trial and error to figure out.
 
They don't give this info away free.
Actually some do. This is a page from the Englander NC 13 manual, it gives a pretty good example of the size and placement of the holes.

There are many manuals available on line, look at some that are from similar size stoves.

When I added secondary air tubes to my Fisher stove I based mine off the Englander NC 30.

[Hearth.com] NEW wood stove project
 

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Actually some do. This is a page from the Englander NC 13 manual, it gives a pretty good example of the size and placement of the holes.

There are many manuals available on line, look at some that are from similar size stoves.

When I added secondary air tubes to my Fisher stove I based mine off the Englander NC 30.

View attachment 149284
I'm pretty sure you know what I meant. I'm sure there are sketches out the there, but delivering the air to those tubes is just as important as the tube itself. There's more involved than just throwing tubes in the top of s stove.
 
air for secondaries MUST be preheated so the supply manifold needs to be where the fire can directly impinge upon it

as for the drawing out of one of my manuals, its a public access thing, BUT those angles as well as the hole sizes in the tubes are specifically optimized for that particular firebox. it aint a "one size fits all" situation.

ohh and only use stainless for the tubes
 
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Are you building a new stove or retrofitting an old stove? If old stove what make/model?

Also, how are you going to gasket the doors with the corner notches in the door frames?
 
Yep, its a new stove project.
So 3 tubes like the book?

What about the air contor?
Do you install air control for the tubes.

What pattern is recommended inside?
 
Yep, its a new stove project.
So 3 tubes like the book?
What about the air contor?
Do you install air control for the tubes.
What pattern is recommended inside?

There is a whole lot more to it than that just because that one stove has 3 tubes doesn't mean anything. It is about getting the air fuel mix right and having the air moving through those tubes at the right speed to get it heated properly so it will ignite the smoke. Generally there is an engineering dept working on it. Its not just ok i think this looks right.
 
I'm an engineer, so I have a little bit of a background on what would go into this. there is no way I would attempt it myself as the likely hood of success is low.

With that said, I have a young neighbor that moved in next to me. When he first moved in I walked over to his barn and asked why he has a old combine taken apart in there. He told me he was going to make a driveable hydraulic powered stump grinder. I looked at him a little cock eyed, smiled and nodded. Two weeks latter he was driving it around. He has made a back-hoe for his truck, his own outdoor boiler, large cement truck, shrunk a gravel truck for his everyday driver... Just a mechanical genius all around.

If the OP is this kind of person, I believe it will happen. If not, he may have a boat anchor.
 
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