Wood burning stove Flue travelling along wall

24sevenv24 · 11 Feb 2020

Hi All

I cant find any regulation info on wood burning stove flues running along walls horrizontally. I am hoping to build a lean too extension with a wood burning stove in one corner. I want to run a 150mm double skin flue out of the top of the wall, along the external wall following the 15 degree roof pitch and then up the existing wall of the house to the roof. See my model here, flue highlighted in red :

https://ibb.co/svvKxXf

What do you think? Would the regulations allow this?

Thanks

cdbe · 12 Feb 2020

You need to took at the MI's for the flue you're using, e.g. I believe Selkirk allow one offset but I'm not sure of the minimum angle - 15 degrees sounds very shallow. Maybe come out lower or run partially inside to make it steeper.

lostinthelight · 12 Feb 2020

Getting sweeping rods round 15° would be difficult, the screenshot is from part J of the building regs.

clifford1 · 13 Feb 2020

The previously attached screenshot says up to four 45 degree angles are acceptable, 90 degrees being regarded as two.
So the doubt is whether your 15 degree run is acceptable, rather than the turns. I'd use two 45 degree turns and increase the indoor run to 45 degrees.

You'd get more heat released indoors from a flue that was lower down not up at the ceiling.

catlad · 16 Feb 2020

I worked in Bulgaria a few years back and I noticed quite a few bars and businesses I went in did the same thing, as much pipe as possible in the building before exiting.

lostinthelight · 16 Feb 2020

Friend of mine had a remote property in Bulgaria used to send me pictures of the crazy flue set ups over there as he knew I was into stoves.he even brought me a flue radiator back on the plane

Leofric · 18 Feb 2020

So your proposal would not comply with bldg. regs for England and Wales.

Safety First · 18 Feb 2020

You can run your flue horizontally for as long/far as your flue pipe is wide.Don't think that length at 15 deg' will be ok either, so, no.

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Wood burning stove Flue travelling along wall

Leofric

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