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Woodburner

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teash | 12:40 Wed 20th Dec 2006 | Home & Garden
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For some reason the glass on the burner is constantly getting full of carbon, the airwash system is open but still to no avail. Does anybody have any ideas because its got to the point of everytime I use it i`m having to scrap the thick deposits off with a stanley blade. Oh and i`m using dried seasoned timber and not timber thats just been fell.

Ta
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Have you changed the source or type of wood being burned? Wood that is not toally cured or stored in area where it can gain moisture content can be the culprit. In addition, try building the fire near to glass. The blackened glass is caused by the smoke in the fire condensing with its moisture content onto the cooler glass.
The warmer you can keep the glass the better. Finally, we have better luck at limiting the carbonization by allowing more air nto the fire through the damper system.. Open the outbound damper (flue) as well as the one letting air into the firebox early on in the life of the fire, only dampening them down somewhat once the fire is well established with some blue coloring along with the yellow on the visible blaze. Best of luck!
Question Author
Cheers for that Clanad, the woods definately no moisture in it at all i`ve stored it all myself for over 2 years now. It seems to be far more black and thicker on the side of the burner that the door open on. I`ll try the method of building the fire closer to the glass.
Many thanks
Another point to consider is, does the chimney need swept? If the smoke is not being drawn out of the fire quickly enough, this will add to (cause?) the problem.
Johnny
Question Author
Have it swept every year Johny, but its a good tip for other people to pick up on
Have you checked that the actual outlet from the stove is not partially blocked with soot? We had a rear flue stove and there was a big build up on the horizontal piece of pipe, which severely restricted the air flow.
Question Author
Everythings clean and tidy, when the woods started to get going (with both top air washes open) the smokes being drawn up the flue at a reasonable speed). It seems to be when the washes are wound in but not fully the problem occurs. As i`m looking at it right now the blackening is mainly on the side that the door opens(opposite side to hinges) but the funny thing is i`ve purposely stacked the wood on the hinge side. Bloody baffling
Loose door catch or hinge? Something that is causing an uneven flow of air?
Question Author
Not that either Johnny, appreciating all of your suggestions though

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