Wood burning stove fitting questions walls/flues etc

Wood burning stove fitting questions walls/flues etc

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Pesty

Original Poster:

42,302 posts

216 months

Friday 2nd November 2012
quotequote all

Anybody know anything about wood burning stoves?

I fancy one but the only place it could go is against the gable end. I am assuming its a cavity wall and some kind of flue could be fitted in the middle of it?

There is no chimney though and where I want to put the stove there is a window straight above on the second floor.

Can the flue be bent around the wondow or would we need to fit the fire off center on the wall?

Smanks

3,100 posts

147 months

Saturday 3rd November 2012
quotequote all
Pesty said:
Anybody know anything about wood burning stoves?

I fancy one but the only place it could go is against the gable end. I am assuming its a cavity wall and some kind of flue could be fitted in the middle of it?

There is no chimney though and where I want to put the stove there is a window straight above on the second floor.

Can the flue be bent around the wondow or would we need to fit the fire off center on the wall?
No. Either in the room or outside.

The flue shouldn't have many bends, so it would probably be easier to just have the fire offset so it missed the window.

TooLateForAName

4,185 posts

144 months

Saturday 3rd November 2012
quotequote all
Id run the flue up the outside wall, have a bend to miss the window. You'd want to use insulated flue pipe which is quite expensive but you would avoid having to run it through floors/ceiling/roof.

mk1fan

9,885 posts

185 months

Saturday 3rd November 2012
quotequote all
External flue up the gable wall. Bending round a window shouldn't be an issuue - seen it done and signed off plenty of times.

If the fire is rated over 5kW then you'll need an air supply (or one with an integrated sealed air supply).

Pesty

Original Poster:

42,302 posts

216 months

Saturday 3rd November 2012
quotequote all
Ahh ok thanks guys.

Yeah seems outside would be best solution, twin walled flue for outside seems to be about £100 a meter though frown


Smanks

3,100 posts

147 months

Saturday 3rd November 2012
quotequote all
Plus the bends, they are expensive.

Globs

13,623 posts

191 months

Saturday 3rd November 2012
quotequote all
I'm fitting mine now (will over this and next month) but into an old fireplace used for a solid fuel back boiler.

Remember to get building regs to test it before you start getting all 'firey' with it, for the CO issues as well as the more obvious 'burn your house down' ones.

You cannot use a 90 degree bend - you must stick to 45degree ones, and there is a limit I think on the number.
You can only go out the back for 150mm horizontally, as much heat comes off the pipe I'd run a pipe as long as you can inside and then go out through the wall (with sufficient safeguards) at 45 degrees.

Also your hearth needs to have a 300mm space from any hearth edge to any stove edge. You can get real granite from stonemasons for a decent wedge too.

37Flipper

474 posts

145 months

Saturday 3rd November 2012
quotequote all
Any reason why you can't go straight up??

When I did mine a couple of years ago I ran it through my bedroom upstairs....

Pesty

Original Poster:

42,302 posts

216 months

Saturday 3rd November 2012
quotequote all
Other than taking a bit of space up no reason at all.

I think it would be better on the outside though. I need to do some re thinking first though I was thinking £400 for fire £200 ish for a bit of pipe maybe another £100 or so for bits and pieces and bobs your aunty but it looks like budgeting for near on 2.5k possibly 3k from a bit of research.

Oh I live in a smokeless area so the fire needs to be 'exempt' as well.

Edited by Pesty on Saturday 3rd November 16:42

Mave

6,466 posts

175 months

Saturday 3rd November 2012
quotequote all
Pesty said:
Other than taking a bit of space up no reason at all.

I think it would be better on the outside though. I need to do some re thinking first though I was thinking £400 for fire £200 ish for a bit of pipe maybe another £100 or so for bits and pieces and bobs your aunty but it looks like budgeting for near on 2.5k possibly 3k from a bit of research.

Oh I live in a smokeless area so the fire needs to be 'exempt' as well.

Edited by Pesty on Saturday 3rd November 16:42
We're doing ours at the moment, just to give you some idea of numbers -

5kW mutifuel, Defra approved, £500
Stainless flue, straight, no insulation, £700
Slate "top" hearth, £350 (you may need additional building work for a constructional hearth beneath, depending on what you've alredy got)
Then need to add in VAT + building control sign off, or HETAS installer cost

Pesty

Original Poster:

42,302 posts

216 months

Saturday 3rd November 2012
quotequote all
It seems the twin walled flue is the expensive part.

Two story house typically costs around £1800 fitted with Poujoulat TI twin wall flue. frown As mine would be at the pointy end it might even be more I assume.


I always under estimate how much things cost, should have learned by now.

mk1fan

9,885 posts

185 months

Saturday 3rd November 2012
quotequote all
All depends where the nearest opening window / vent / location of wood burner and eaves are/is.

Yes, there is a cost associated with it.

Pesty

Original Poster:

42,302 posts

216 months

Saturday 3rd November 2012
quotequote all
I'm being thick. its not the pointy end at all doh. red line is approx where I think it would need to go.


Globs

13,623 posts

191 months

Saturday 3rd November 2012
quotequote all
Mave said:
Slate "top" hearth, £350 (you may need additional building work for a constructional hearth beneath, depending on what you've alredy got)
I'm building a hearth, it's £300 of choice 20mm granite in 4 blocks (arranged in an inverted T) with polished edges and rounded corners. That's a 27" x 18" recess piece and a 18" x 54" multi-part piece (split do the heat doesn't crack it) out the front for the hearth. It will sit on mortar pads.

BTW you'll need to insulate your wall behind the fire properly - Part J documents (avail online) detail how to do that in basic terms.
Also bear in mind the chimney is where a lot of the heat goes - it's like a big radiator.

I'd use simple steel/iron on the outside of the house - much cheaper than stainless even if you have to replace it once a decade. Also in your photo you'll need wire to stop kids and idiots burning themselves on the hot pipe - best to exist the wall/house at 45 degree as high as possible - i.e. near (but not too close to!) the living room ceiling.

TooLateForAName

4,185 posts

144 months

Saturday 3rd November 2012
quotequote all
Pesty said:
I'm being thick. its not the pointy end at all doh. red line is approx where I think it would need to go.

might want to check the rules - that flue would be adjacent to the road/pavement - may need a non flamable barrier as well....

And it would need to clear the roof ridge I think.

How much to build a brick chimney on the outside?

Pesty

Original Poster:

42,302 posts

216 months

Saturday 3rd November 2012
quotequote all
st yeah even though its twin walled I imagine it will still get hot so a no no for pedestrians.

Pesty

Original Poster:

42,302 posts

216 months

Wednesday 6th November 2013
quotequote all
Sorry to bring this up again.

Going to get a company out to give me a quote next week and obviously will have a chat with them but..

Can anybody recomend a stove 500 to 600 ish.

I'm thinking the aga mini wenlock clasic at the moment but it's a bit traditional looking

Anything similar but a bit more modern/stylish?

Reading this thread again I see now about having the flue inside up until the ceiling cheers

jdw1234

6,021 posts

175 months

Wednesday 6th November 2013
quotequote all
I am having one pit in. Paid deposit today.

Including the stove (Clearview Vision in blue with chrome handles) full installation plus Vodka and Tonic is 3600. This includes all bits for flue etc.

On top will be a bit of bashing the fireplace about, but this obviously varies depending on what you have.

It's a 2 storey place so should be fairly standard.

The AGA one looks lovely.

jdw1234

6,021 posts

175 months

Wednesday 6th November 2013
quotequote all
Pesty said:
Sorry to bring this up again.

Going to get a company out to give me a quote next week and obviously will have a chat with them but..

Can anybody recomend a stove 500 to 600 ish.

I'm thinking the aga mini wenlock clasic at the moment but it's a bit traditional looking

Anything similar but a bit more modern/stylish?

Reading this thread again I see now about having the flue inside up until the ceiling cheers
We were shown a catalogue for a company called "Dovre". Wouldn't suit our place (ramshackle old pile) but maybe what you are after (contemporary ).

Pesty

Original Poster:

42,302 posts

216 months

Wednesday 6th November 2013
quotequote all
Like that has great reviews thanks.

I'm hoping to get it all done for under 2k but we'll see as per nave above.