Does a vent pipe need a bend?

[Thunderskunk]

Hello!

I’ve got an old Chinese copy of a potbelly “caboose” stove I’m moving out of the shop and into the house until we can afford a nicer model. Right now, the insulated chimney goes straight up, no bends, and we were planning on installing it with no bends.

I’m aware that you should avoid bends and horizontal runs where possible, and ideally face the crimps away from the stove for ideal gas flow with coal. I thought I saw something somewhere that you aught to put a horizontal run in it for whatever reason.

Bottom line: is it ok to have a perfectly straight vent upwards from a coal stove?

[waytomany?s]

? That's not straight up.

[Thunderskunk]

? That's not straight up.

That’s the shop it was in. This is where it’s going.

[waytomany?s]

That’s the shop it was in. This is where it’s going.

Lol, good. Thought I hit my head harder than I realized.

[warminmn]

cleaning the pipe and chimney, or checking it, will be harder without a bend with a T. I guess you could add a T above the stove somewhere and cap it, then use a mirror thru the T to check your pipe for plugging. You could add a baro to it if needed and remove the baro to check the chimney.

But other than that I dont think it would matter, my opinion.

[Thunderskunk]

Cool. That barometric draft regulator is going in on the new pipe. Necessary as we have strong winds up there.

[StokerDon]

Cool. That barometric draft regulator is going in on the new pipe. Necessary as we have strong winds up there.

Going strait up you leave your stove open to anything that can come right down the chimney. You could offset the stove by 10 or 12 inches. Then you can connect them with a horizontal Tee and a vertical Tee. That will give you a small cleanout and help keep the chimney stuff out of your stove.

-Don

[warminmn]

I stand corrected! Good points StokerDon

[Thunderskunk]

Going strait up you leave your stove open to anything that can come right down the chimney. You could offset the stove by 10 or 12 inches. Then you can connect them with a horizontal Tee and a vertical Tee. That will give you a small cleanout and help keep the chimney stuff out of your stove.

-Don

Do I care if that stuff ends up back in the stove? There shouldn’t be much creosote other than what’s generated with a starting fire I would think.

[StokerDon]

[/quote]Do I care if that stuff ends up back in the stove? There shouldn’t be much creosote other than what’s generated with a starting fire I would think.
[/quote]I was thinking more like rain, birds and sluff that will normally fall off the inside of the chimney down to the cleanout. You don't want any of that to fall inside your stove.

Then again, I just looked at the picture again, and your stove pipe doesn't go directly in the top of the stove. So you might be alright without the offset. If it were my stove, I would still install it offset with the 2 Tee's just because it will make it easy to remove the pipes for cleaning and storage at the end of the heating season.

-Don

[warminmn]

Burning bit coal or anthracite? This is in the bit category. Bit will plug up your chimney sometimes, ant wont.