Square stove in corner - how close to solid plastered wall without risking blowing?

[carbs for arbs]

Hi all

 

We're looking to have a wood stove installed.  It will go into the corner of a room, at 45 degrees to the walls.  Both walls are external, cavity, with plastered block / brick on the inside.  

 

One installer has said so long as the two back corners are 100mm minimum from the walls, there won't be a problem with blowing the plaster.  

But another has said it is best to follow the stove guidelines for distances to combustibles (even though the wall isn't combustible; but to prevent blowing) - which in our case would be 400mm.  

 

Quite a difference!  Would anyone mind sharing your thoughts on which sounds most realistic?  

 

Many thanks

[Squaredy]

7 minutes ago, carbs for arbs said:

Hi all

 

We're looking to have a wood stove installed.  It will go into the corner of a room, at 45 degrees to the walls.  Both walls are external, cavity, with plastered block / brick on the inside.  

 

One installer has said so long as the two back corners are 100mm minimum from the walls, there won't be a problem with blowing the plaster.  

But another has said it is best to follow the stove guidelines for distances to combustibles (even though the wall isn't combustible; but to prevent blowing) - which in our case would be 400mm.  

 

Quite a difference!  Would anyone mind sharing your thoughts on which sounds most realistic?  

 

Many thanks

400mm sounds ridiculous.  I would say very few stoves are 400mm from solid walls.  If the wall and the plaster are sound they shouldn't mind a bit of heat.

 

I don't know what the regulations are but if everyone had to install their stove 400mm from solid walls all stoves would be in the middle of the room.

[GarethM]

Erm, if it's going into a corner of a room the 400mm might be to the back.

 

So 100mm on either side, obviously depends on the style and shape.

 

wood+stove+clearances+uk+non+combustible+ - Google Search

WWW.GOOGLE.COM

 

 

Edited July 31, 2023 by GarethM

[woody paul]

We have a stockton 4 in a old fire place has less then 100mm around it not blown plaster of yet 12 years on. 

 

[carbs for arbs]

Thanks for the helpful replies and insights.  

 

@woody paul - that's encouraging to hear, especially as in your case it sounds like it is 100mm all the way around, not just from the back corners.  And is that just standard gypsum plaster on brick / block?  

 

@GarethM - no, they specifically said from the back corners.  So the red lines here:

 

 

Many thanks

[woody paul]

Yes it was just give a coat of plaster on the old bricks and painted to tidy it up. 

[Muddy42]

Just a few thoughts.  Check the swing of the door doesn't bang the wall with your configuration?  A hot door might leave a mark.  Continuing on the point, stoves are pretty messy, you might want a box of logs nearby or somewhere to stack a poker.  So rather than plaster, it might be a good idea to have some kind of hardwearing wall or fireplace round the stove anyway?  Finally stoves can be moved and flue angles inserted, if this is required in the future.  Maybe get your installer to promise he will do this, if it turns out it needs more space.

[carbs for arbs]

Thanks for confirming @woody paul

 

And thanks for the additional thoughts @Muddy42 ....

- I'll check the swing of the door; hadn't thought of that, but suspect (hope!) it will be ok.     

- We've got a dog and will always have dogs.  And we're quite outdoors-y / wellies-in-the-kitchen type people.  So we'll try to consider any dirt and mess as "character"   

- Good points RE moving the stove in the future, and something we can discuss with the installer.  The only thing about that is the hearth...  It's already going to stick out more into the room than desirable, so we don't want it to be any/too much bigger than it has to be.  In which case, that might prevent the stove from being movable in the future.  But will definitely bear it in mind.  

 

Cheers

[Steven P]

Could also look at a heat resistant plaster rather than the stuff from the DIY superstores, give them a call and see

 

Heat Resistant Plaster | Superior Refractory Materials | VITCAS

WWW.VITCAS.COM

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Detailed specification of heat resistant plaster made by Vitcas ➤ Top quality and wide range of applications. Fireproof smooth finish ➤ Check our offer now!

 

Edited July 31, 2023 by Steven P

[topchippyles]

100mm should not be an issue plasterboard is a fire resistant barrier anyway. Normal 12.5 mm board is 30 minutes.