How much pipe before roof bracing?

[MtSiBK]

I have just a straight shot up and out with 2 3ft class a and 6.5ft double wall. If I open the loading door to quickly I get some spillage but it’s controllable if I’m patient. If I added a 2ft piece do I need a brace? I know I’m running at the bare minimum length for my stove.

 

[Highbeam]

5’ above the roof line is where you need your first brace. Looks like you can add some without one. Lucky!

 

[begreen]

Looks a bit smoky in the picture. So 12.5' of vertical rise? Is that correct? That's a bit shy for the Sirocco 30. I'd add 4 ft. with a brace at the 5' level above the roof.

 

[MtSiBK]

It’s a Bk scirocco 30. I know barely at the minimum. I just had a new roof put on and really not into new holes. I was just more or less curious. We are on year 2 and it works well as is but everything always has room for improvement.

 

[begreen]

It's 2.5' below the recommended minimum. The added height should improve stove performance, especially in shoulder season weather.

 

[MtSiBK]

I had just loaded it up. 90% of the time it’s a very thin steam or nothing.

 

[Highbeam]

I had just loaded it up. 90% of the time it’s a very thin steam or nothing.

You can simply screw on lengths of chimney up to that 5’ trigger point for an improvement. No braces needed. I hate roof penetrations too! Plus I don’t like the looks of the roof braces. You might be able to put on 2.5’ and meet the spec.

At your elevation the manual has a table that might even recommend a touch more height due to thinner air.

 

[xman23]

Any screen in that cap? Spillage is the first sign of it being plugged.

 

[MtSiBK]

No screen. I got a cap that is wide open. I learned that with my last BK.