advice for installing a wood burner / multifuel stove

honey11

Hello, I am a newbie here. I have had 2 quotes for Heatas installation of a multi-fuel stove (5kw). The work they want to do is very different and I would really appreciate some advice on what is really needed .....
quote 1 said that we need to remove all combustable material (plasterboard) around the wall where the burner will go (plus inside the actual inset chamber) and replace this with render. Because it won't match the rest of the skimmed plasterboard wall, he has also quoted to skim the whole wall so it matches in.

quote 2 said that we only need to render or line (with travertine?) the chamber, plus have some heat resistant board that goes at the top of the chamber - the tube coming out the top of the burner will go through this up into the chimney. He sees no need to remove any of the pasterboard on the wall outside the inset or chamber.

I am really confused .... should there be a removal of combustable skimmed plasterboard for safety reasons (on the wall around the inset).

Thanks so much for any help or advice.:A

crphillips

I can't figure out whether your talking about an inset stove or a free standing stove in a recess? Is it going to be a cast or steel stove that will sit within a recess in the chimney breast or is it going to be an inset/cassette stove that sits flush with the front wall of the fireplace?

devildog

Not in the trade so cannot answer from professional experience can only tell you what our HETAS engineer did.
The inset(like a low alcove for burner to sit in?) was lined with fire retardent/resistant boarding around the three sides and across the top(where burner flue(?) goes up into chimney)
The wall on the outside of inset was plaster skimmed over(although solid wall and not plasterboard)

hethmar

If you mean a free standing stove? The stove pipe should go through a metal register plate (we use galvanised steel on angle iron supports), not boarding :eek: You can lime render the back and sides of the builders opening or CRPhillips has a nice you tube where he has used mild steel painted with stove paint for the rear wall. There is flame retardent boarding which looks like plaster board too.

But perhaps Im not following what you mean. Travertine? Does he mean a hearth of travertine? The hearth has to be non combustible and a minimum of 12" in front of the stove?

May be you could tell us the make/model of the stove or inset fire?

If you are in real doubt, why dont you give HETAS a ring and ask their advice?

peediedj

hethmar wrote: »

If you mean a free standing stove? The stove pipe should go through a metal register plate (we use galvanised steel on angle iron supports), not boarding :eek: You can lime render the back and sides of the builders opening or CRPhillips has a nice you tube where he has used mild steel painted with stove paint for the rear wall. There is flame retardent boarding which looks like plaster board too.

But perhaps Im not following what you mean. Travertine? Does he mean a hearth of travertine? The hearth has to be non combustible and a minimum of 12" in front of the stove?

May be you could tell us the make/model of the stove or inset fire?

If you are in real doubt, why dont you give HETAS a ring and ask their advice?

yes its a free standing stove in a bungalow, NO fireplace or alcove, THE 6" tw pipe goes thru the wall theres a metal plate(2 peice) there and a 45 deg metal tube in the wall cavity. the stove is 300mm away from the internal wall and on a 1" thick piece of slate.its the wall 300 behind stoe thats gettin very warm and concerning me

peediedj

devildog wrote: »

was lined with fire retardent/resistant boarding around the three sides and across the top(where burner flue(?) goes up into chimney)

can you tell me what product he used?

kats53

Can you emulsion straight onto the fireboard?

smcqis

We have plasterboard on our chimney breat but not within th inside walls of the stove this is brick with a layer of cement over. Plasterboard is ok on rest of chimney breat as this only gets as hot as any other wall in the room

Leif

kats53 wrote: »

Can you emulsion straight onto the fireboard?

Several installers told me you could. I take it you really mean "does the emulsion survive the heat", and the answer I was given was yes. Putting my hand at the side of a stove, I was surprised that it was not that warm, a lot more heat being thrown out from the front of the stove. When I looked at stoves, I saw lots of fireboard inside, which presumably helps direct the heat forwards. Oddly enough the Charnwood Countryman 4 had thin black board, whereas most others had thick vermiculite, but I digress.