Distance to wall

[Hellhawk]

Planning to put drywall and a cement fiberboard
Behind this stove, the distance to the wall/fiberboard will be 9cm, is that okay from a fire safety perspective?
Grateful for a quick response

 

[Höghus]

Fiber cement isn't very good at insulating, even though it is fireproof in itself.
What does the stove manufacturer say about the distance to flammable materials?
Maybe double layers of fiber cement with a ventilated air gap in between?
Or vermiculite, which insulates significantly better?
Either way, it's probably a good idea to check with the chimney sweep first, as he's supposed to check before you start burning.

​/Höghus

 

[Hellhawk]

The stove has been there for 5 years and has been inspected etc.
The distance before with single plasterboard and OSB was 9cm

 

[HSP]

What is it you have changed then?
And why in that case?

 

[HSP]

Gypsum and fiber cement are better than plaster and OSB.
But was there a problem before since you're redoing it?

 

[Hellhawk]

I am planning to open up the doorframes on the right and left side and thought of removing osbn at the same time..
Would you approve gypsum and fiber cement board?

 

[HSP]

The "dangerous" part might be that the heat passes through the fiber cement board and heats up the underlying material.
A ventilated air gap is perhaps normal at small distances... This is achieved by placing the fiber cement board on spacers with gaps at the top and bottom. It might not look very nice... but that's how I have it in the sauna...

The stove doesn't look very old, so it's likely possible to find an installation manual, which usually includes measurements and how to construct surrounding surfaces.

 

[heimlaga]

I have experienced that. It started to smoke behind the panel. It quickly became necessary to rip it off and use 20 liters of water.