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I realise this is'nt the woodstove forum, but here goes.
I'm having a freestanding woodstove fitted in my conservatory. The plan was to fit approx 2 metres of single skinned flue from the top of the stove joining into insulated twinwall flue before it exits through the roof. The fitter's run into a problem in that the single skinned flue would have to be 3 times its own diameter away from the wall behind it. It's not possible for us to do this & he's now suggesting running the twinwall insulated flue all the way down into the top of the stove.
I can't see any problems in doing this other than it's not the way I envisaged it looking.
Any thoughts on having the insulated flue all the way down into the stove ?
Thanks in advance, Dave.
insulated flue all the way is fine, i would want a nice looking twin wall like Dinak dw though. i think its available in black too. oh and its 3x the diameter to a COMBUSTIBLE surface, 1.5 to a non-combustible.
You may want to try [url= http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADJ_2010.pdf ]Approved Document J[/url] for answers to technical questions.
Thank you both 😀
D.
slight thread-jack. I live next to a wood with so much err, wood, that
I'd like to fit a small wood burner in my living room. I have an opening and flue there already but it's designed for a gas fire. Can I fit a wood burner and use the gas fir flue?
what's the material behind the flue?
You can use a fireboard (kind of plasterboard, but not combustible - gypsum, I was told is actually combustible! ) that allows you to have single wall flue closer to it.
However, if it's glass or wooden frame I guess you'll need to use the twinwall.
This is mine, with the wall behind the floor lined with a fireboard, rather than plasterboard.
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Bugger, got wood envy
Stoner, the flue runs up the cavity and out through the roof. Looks like a stainless steel flue with a cone cap. The inner wall is thermalite block and the outer brick.
i doubt you could use the existing flue liner plop_pants, it needs to be a Hetas approved liner which is smooth lining on the inside as opposed to the gas one which usually is the same inside as what you see on the outer.
edit: stoner, what type of flue is that single wall? looks like selkirk il?
single to where it flairs into twin.
Cant remember the brand.
Plor - dont see why your builder cant change the wall coating for afire retardant one so you can go foor single wall if aesthetically that's what you want.
You have to weigh up the difference in cost of 2m of twin vs 2m single + new wall coating.
Single skin (vitreous enamel) - 3 x diameter to combustible materials or 1.5 x diameter to non-combustible.
Twin wall insulated - around 50mm to 60mm clearance required from all combustible materials(varies between manufacturers).
Non-combustible boards as lining behind stove - Promat Supalux or RCM Siltech - 12mm thick with 12mm air gap behind (this can be done by screwing 50mm strips of the board to existing combustible surface)
The single skin should act as a radiator so if possible splash the cash on upgrading the wall to non combustible level to get the better deal in the long run....
Stoner may I ask how many times for that photo now?? 😆
One other thing does twin wall keep a little cooler? That was my old mans concern when fitting his that someone might just lean on or touch the exposed single skin flue and receive an almighty skin strip!
(Grandkids mainly)