stove installation safety

niall_walsh

i was looking for some advice regarding installing a multifuel stove. I am planning to to it infront on an existing plasterboard. As far as i an aware we used fire resistant plaster board in this area during the build. (will check with builder) Within the wall we have used twin wall flue. I was wondering about painting behind the stove. Will i have to used fire retardant paint or would water based emulsion be suitable. Any advice welcome.

Poor Uncle Tom

How far from the plasterboard will the stove and flue be?

niall_walsh

the stove itself will sit approx 200mm from wall. Where the flue goes through the wall we cut a large square in the plaster board over which i have got a stainless steel plate to cover the hole behind stove. I would say the flue itself is approx 150mm from any plasterboard. Given the size of the stainless plate a may be able to extend the gap to the plaster board if required. Plasterboard has been skimmed. I hope this is clear enough to give you a mental image.

Poor Uncle Tom

I have an 11kw stove 125mm from skimmed plasterboard backing with the pipe going through the plasterboard to the rear. I have one winter down with no problem.

niall_walsh

Cheers. Thanks for the replies. Just one more question...Paint..what did you use?

starbelgrade

The fire integrity of plasterboard is rated by the construction of the wall & the choice of paint finish will affect surface spead of flame. Emulsion paint is usually Class 0 or Class 1 so not a problem, so you'll be fine using that.

Intumescent paint is only generally used for protecting steelwork & is very expensive.

Poor Uncle Tom

niall_walsh wrote: »

Cheers. Thanks for the replies. Just one more question...Paint..what did you use?

2 coats of emulsion.

niall_walsh

Thanks a lot guys. I appreciate the advice. Think i will push oin with the 2 coats of emulsion.

Andrew33

I installed a free standing stove last year and had a beautiful cosy winter!
I just have one small problem which I need to address before this winter.
I've 2 sections of single wall flue from the back of the stove which mate with a twin wall before exiting the building, I'm having terrible problems sealing the sections of single wall where they join to each other and to the back of the stove, I've used fire cement which cracks and falls out as it has zero flexibility (and looks crap on a black flue).
I rang a well known builders/plumbers providers here in Dublin to see if there was a silicone sealant that could take the high temps and was told in no uncertain terms it was fire cement or nothing and that I probably hadn't cured it properly!
Good ole Google tells me there is a high temp silicone sealant so I went searching and found one in Woodies which is rated to 400F, I've measured the external air temperature of the flue at the rear of the stove (basically attached an oven thermometer to the flue) and it only got up to 250F even after a very vigorous burn!
I'm just a little concerned that that's only the air temperature milimeters from the flue and not the temerature of the metal itself.
Any experts opinions on the 400F stuff? Do I need something with an even higher rating?

Poor Uncle Tom

Andrew33 wrote: »

I installed a free standing stove last year and had a beautiful cosy winter!
I just have one small problem which I need to address before this winter.
I've 2 sections of single wall flue from the back of the stove which mate with a twin wall before exiting the building, I'm having terrible problems sealing the sections of single wall where they join to each other and to the back of the stove, I've used fire cement which cracks and falls out as it has zero flexibility (and looks crap on a black flue).
I rang a well known builders/plumbers providers here in Dublin to see if there was a silicone sealant that could take the high temps and was told in no uncertain terms it was fire cement or nothing and that I probably hadn't cured it properly!
Good ole Google tells me there is a high temp silicone sealant so I went searching and found one in Woodies which is rated to 400F, I've measured the external air temperature of the flue at the rear of the stove (basically attached an oven thermometer to the flue) and it only got up to 250F even after a very vigorous burn!
I'm just a little concerned that that's only the air temperature milimeters from the flue and not the temerature of the metal itself.
Any experts opinions on the 400F stuff? Do I need something with an even higher rating?

There are intumescent caulks and sealants out there.
PM sent.