Hi!
I'm going to install a stove on an existing chimney at home.
I've been searching like crazy but haven't gotten an answer to a question I have.
Conditions:
The chimney is in a shaft and comes down into the boiler room. The stove will be on the other side of the wall. The penetration is completely uninsulated. The question is, how much air do I need between the drywall and the connecting pipe?
I'm going to install a stove on an existing chimney at home.
I've been searching like crazy but haven't gotten an answer to a question I have.
Conditions:
The chimney is in a shaft and comes down into the boiler room. The stove will be on the other side of the wall. The penetration is completely uninsulated. The question is, how much air do I need between the drywall and the connecting pipe?
http://www.sotarbolaget.se/fragor_svar.html
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Uninsulated flue pipe:
Non-insulated flue pipes/connection pipes should be arranged at a distance of at least 500 mm sideways and vertically, the distance can be reduced to 250 mm if the combustible part is provided with a radiation shield.
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Uninsulated flue pipe:
Non-insulated flue pipes/connection pipes should be arranged at a distance of at least 500 mm sideways and vertically, the distance can be reduced to 250 mm if the combustible part is provided with a radiation shield.
"
Can't you build a shaft with minerit board?
And why not have an insulated flue through the wall?
And why not have an insulated flue through the wall?
The pipe is already there from before. There used to be a masonry fireplace there. Now I've welded on a 150mm pipe and framed, drywalled, and painted. So there won't be any changes now. It's only about the 26mm drywall, if the pipe is 150mm, how big should the hole in the drywall be? There is no combustible material in the wall.D09 said:Can't you build a shaft with minerit board?
And why not have an insulated flue pipe through the wall?
I think the drywall is considered combustible.
Spoke to the chimney sweep who conducts the fire safety inspection who said the following:D09 said:
Gypsum is not considered combustible as the paper cannot sustain its own fire. What can happen is that the gypsum becomes porous and falls apart, and the paper can char and the paint can yellow. His suggestion was to use 2 layers of stone wool mat (the model with foil and chicken wire) about 40-50mm is enough to prevent discoloration on the wall.
Since the collar I have covers 45mm around the pipe, I'm aiming to insulate 40mm. If there is discoloration I can:
1. Live with it.
2. Repaint occasionally.
3. Insulate more and buy a larger collar.