I have a Vermont Castings Woodstove. It has a 6″ vent for chimney pipe.
I am moving it to a house that has an 8″ chimney pipe. Will the stove burn okay with the larger chimney? Should I replace chimney and install 6″? The installed chimney has hardly been used. It is a SuperVent straight through the roof kit chimney. Thanks.
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More likely then not it will work fine.
I'd give it a try before ripping a perfectly good
chimney down.
There would be no need to demo existing. It can be re-lined smaller.
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There would be no need to demo existing. It can be re-lined smaller.
It's a prefab metal chimney, not masonry.View Image
I got that. Can still be lined cheaper than entire replacement.
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Oh - I've never heard of doing what you speak of. Should work though. Getting it inspected might be a probalem.View Image
Inspection COULD be a problem, given that there is probably language for the existing flue stating that it shall not be modified nor installed in any way other than prescribed.Not that he is likely to see an inspector climb the roof, and pop the cap off to check all that.The 6" to the existing class A metal 8" chimney would pass inspection without a doubt as long as clearances in the room to combustible walls and hearth size are right. I'd probably go that way, and then if I found that creosote was forming too fast, might add the lining later.If I were changing this chimney out, I would go to a solid pack ( metalbestos type) instead of triple wall because it retains heat so it is less likely to build creosote.But I firmly believe your burning habits are the biggest indicator of how much condensate will grow in your flue. I've burnt wood for more years than I care to remember ( wears me out to think of all that log splitting and chain saw work) and I have never found more than an eighth inch of build in my flue after a year or two of burn. But I have visited other places to inspect where they had complaints and found the flue almost completely choked down with the stuff. One was 2-3 months after I'd installed th stove and chimney. The smoke hole at top was only big enough for my picky. They had been burning green softwood and choking the damper way down. Thought two weeks was plenty long enough for the wood to dry....
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One was 2-3 months after I'd installed th stove and chimney. The smoke hole at top was only big enough for my picky. They had been burning green softwood and choking the damper way down.
Man, I don't know why that struck me as funny enough to laugh out loud!
Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people. [Theodore Roosevelt]
OK, so spell check can't keep up with me...That darm hole was so small I could have barely got my little finger in'erhappy now?
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Ya, darm it all anyhow.Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people. [Theodore Roosevelt]
whaddya guys tryin ta do? get us all barned?
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get us all barned?
Is that where you do your picky poking?View Image
I'm starting to feel sick. I think I'm coming down with the flue. Best go to bed.;)
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That one about flue right by me.Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people. [Theodore Roosevelt]
Arrrgggghhh.
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We better get this thread back on track before it goes up in smoke.You know hot poetry can lead to burning wood, don't you?
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That darm hole was so small I could have barely got my little finger in'er
But you couldn't get your picky into it though? Sounds like bragging to me.View Image
I have 6" stainless pipe already. Can I use that as a liner?
I will have to have this inspected by insurance company so I'd like everything done right to start.
Learn something every day
Yeah - he actually lives up there where it's really cold most of the time. Nor'easters and stuff.
Forrest
Probably OK, but check with the manufacterer
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The stove will burn and heat fine, but you may need to clean the flue more often.
The reason is that in a larger shaft, the smoke stagnates and dioes not draft out to the top as fast. That keeps the flue cooler and with smoke hangintg out longer in a cooler pipe, you can get more creosote formation condensing there.
Burn dry wood and do a good hot fire when you first start it for 20-30 minutes to heat the flue and that will help.
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Size does matter in this case. You need to be properly sized to the furnace or you will not get proper draft.
Family.....They're always there when they need you.
You need to be properly sized to the furnace
That's correct, except it's a woodstove in question.View Image
I know, there is still an optimal size for optimum venting.
Family.....They're always there when they need you.
Well, it's more of a "you MAY not get proper draft"
situation. Some stoves can run on either, while some need the eight inch.
Yet many stoves will except a slightly larger flue then speced.
There is some lee way, evidenced in fireplace flue sizing.
When you size the clay flue you always have to fall within
a "range" due to the limited standard sizes available.
Call the manufacturer first. Then try it.
This is a wood stove, not a furnace.But for either you do need proper sizing. There is a lot of tolerance in that though. Would never put a 6" applince into a 12" flue, but 6-8 adaptor is typical and accepted.
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Best bet is to check the manufacturer specs.
You will need to know the rise of the existing chimney, and if there are any offsets. If it is too short for your stove, then the larger vent may be OK.
Again, the manufacturer provides in depth venting information. Please use it.