Have a new problem with my 4 year old stove.

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Yes there is a clean-out, but I keep it siliconed shut.

Correction on flu info... I just measured it and it's 24 feet from where the thimble enters it , to the very top.
 
HotCoals said:
I say something is not right in the stove itself.
Tell me more about this stove.
Does it have secondary burn tubes..how about baffles?
It surely is not drafting for a reason...blockage of some type in or near the stove is my guess.
If the stove is out can you look inside it and see the exit into the pipe?


It does have 2nd burn tubes.
Don't think it has baffles... what are they ? There is nothing in the top part of the stove when I look into the hole after I remove pipe. just a slab of rock.
The stove is designed for the smoke to leave the burn box and exit at the front of the stove above the door, then travel to the back of the stove and out the pipe... so , NO , I can't look into the stove and see the exit to the pipe.
 
That "slab o rock" on top of the burn tubes is the baffle. It needs to be all the way to the back of the stove. Can you feel an insulation blanket material on top of the baffle? I'm not sure if the Century has this, just checking.
 
Well my money is on something is stopping your draft from where the smoke exits above the door to the pipe on top of your stove.
Is the pipe down into the stove to far by any chance?
 
BeGreen said:
That "slab o rock" on top of the burn tubes is the baffle. It needs to be all the way to the back of the stove. Can you feel an insulation blanket material on top of the baffle? I'm not sure if the Century has this, just checking.

Oh Ok ! No ins blanket on top of it... I just cleaned it off the other day... ( had a 1in layer of fine ashes settled in top of it.)

I don't think it has moved,, and I had the impression it couldn't, but i"ll check and make sure.
 
Is there a chance he is only getting air to his secondary's and if so would it cause the prob he is having?
 
HotCoals said:
Well my money is on something is stopping your draft from where the smoke exits above the door to the pipe on top of your stove.
Is the pipe down into the stove to far by any chance?

I just had it apart the other day, and cleaned it all out.

The air intake is clean and working

The top of baffle is clean

The pipe doesn't extend down into the stove. The stove has a collar on it that the pipe goes into, and the pipe can't go any deeper than the collar... 1.5 in or so.
 
Stuffer said:
BeGreen said:
That "slab o rock" on top of the burn tubes is the baffle. It needs to be all the way to the back of the stove. Can you feel an insulation blanket material on top of the baffle? I'm not sure if the Century has this, just checking.

Oh Ok ! No ins blanket on top of it... I just cleaned it off the other day... ( had a 1in layer of fine ashes settled in top of it.)

I don't think it has moved,, and I had the impression it couldn't, but i"ll check and make sure.

Did you check to see if there is a cleanout door at the base of the chimney and that it is closed and sealed (with a gasketed door)? Is the stove piped directly into the chimney via a thimble?
 
And you are sure that the pipe going to the chimney from the stove is all clear?
 
BeGreen said:
Stuffer said:
BeGreen said:
That "slab o rock" on top of the burn tubes is the baffle. It needs to be all the way to the back of the stove. Can you feel an insulation blanket material on top of the baffle? I'm not sure if the Century has this, just checking.

Oh Ok ! No ins blanket on top of it... I just cleaned it off the other day... ( had a 1in layer of fine ashes settled in top of it.)

I don't think it has moved,, and I had the impression it couldn't, but i"ll check and make sure.

Did you check to see if there is a cleanout door at the base of the chimney and that it is closed and sealed (with a gasketed door)? Is the stove piped directly into the chimney via a thimble?

Yeah, cleanout is siliconed shut.

And yes to 2nd ques
 
HotCoals said:
And you are sure that the pipe going to the chimney from the stove is all clear?

All clear... It does have a thin layer,, maybe an 1/8th in thick of build-up inside it, but nothing to make me think it couldn't draw. I'm gonna replace it anyway tho.
 
Its amazing how a small layer of build up like that on the pipe can slow it down.

If it is single wall pipe to the breech, you loose heat from that as well. Double wall pipe will help keep the temp and speed up on the exit.

A cold 8x8 clay will be tough to keep warm as well. Re-line with appropriate liner and reep the benefits.

If there is a 90 elbow in it, try 30 or 45 elbows instead. Helps to reduce loss in velocity.
 
Install fire 1 said:
Its amazing how a small layer of build up like that on the pipe can slow it down.

If it is single wall pipe to the breech, you loose heat from that as well. Double wall pipe will help keep the temp and speed up on the exit.

A cold 8x8 clay will be tough to keep warm as well. Re-line with appropriate liner and reep the benefits.

If there is a 90 elbow in it, try 30 or 45 elbows instead. Helps to reduce loss in velocity.
All very good advice.
It prolly is not just one thing messing up his draft but a combination like you are referring to if there is nothing wrong with his stove.
But he did go 4 years with his setup..that's whats baffling.
 
It has been very cold this year, and have personally seen trees and other factors, which are out of our control, grow and fill out which we as people may not notice in 4 years, and have a negative effect on draft.

I went back to an install that my dad did 20 years ago. It was a resolute non-cat, worked fine and started giving trouble this year. Had to dismantle interior and clean as well as extend the chimney, ( which was proper height) an extra 2 feet because the trees had grown in that time and changed the way the stove drafted.

Just a thought.
 
The tree problem is one of the environmental issues that I was considering - a tree that has grown out - or been cut down - a neighbor that added an addition or a second / third level to their home - a wind break of leeland cypress that grew 5 feet last season - a sound barrier wall that was put up next to the road to stop sound from traffic (common around Baltimore - the beltway is lined with them, I don't know about other parts of the world)

Obviously, these a rare and sometimes extreme cases, but we're all grasping at straws here trying to find an answer to this one!

Maybe some pictures of the complete setup will reveal something - is it possible to post some pix of; stove, stove pipe, thimble, chimney top and bottom?

I can't wait to find out what the answer is here.
 
Could it be you reinstalled the baffle incorrectly?
My real vote since you say this is the coldest winter you've seen is the masonry chimney has cooled down to the point of interfering with draft. You should line this chimney and extend it a couple of feet.
 
Am gonna do some more inspection and cleaning and replace pipe to thimble and re-seal everything and see if that helps. will post results in a couple days possibly with pics if i have time .

I'm out in the country with no neighbors and the closest trees are 40 yards away and small. Nothing around the top of flu to effect in that respect I don't think.


This site is awesome ! Thanks to all who are helping me troubleshoot this thing !!!
 
Three weeks ago, we were dealing with some serious wind around our area. Did you guys get that too? Also, lots of ice and snow.

If the smoke is coming out of your stove, the short the matter is that something changes that makes your house a better chimney than your chimney. A change is stack pressure could do this. Also, a change in make-up air.

If you had that strong wind a few weeks ago, is there any chance the wind caused some damage that is changing the stack characteristics of your house? I had an issue once when the wind from hurricane Ike came through that I opened the garage door, and enough wind channeled into the house fast enough that the air pressure actually lifted the attic access panel in the upstairs hall ceiling out of place.

Just a few things i'm thinking of off the top of my head...

Are all your attic access panels closed?
Are all the upstairs windows closed and locked (for sure?)
Did you make any changes to the house in the last three weeks?
3M plastic window kits?
Caulking, door sweeps, etc?
Did you add any new bathroom or dryer vents?
Do you have a vent fan somewhere stuck ON (bathroom, kitchen, etc?)
Do you have snow drifted up against the house sealing an area where make-up air would have found its way in?
Do you have ice sealing up any vents or places that make-up air would have found its way in?

If it started suddenly and then went away suddenly, I'd guess maybe it was something having to do with weather. Wind, barometric pressure, temp, etc... But since it started suddenly and has persisted, It really makes me thing as if something happened/changed that caused the problem, and will continue until you find it.

-SF
 
It's been warm here the past 2 weeks and haven't needed a fire... I just built a new fire and got the stove up to 700* I've been outside for about an hour watching the smoke come out of the chimney. It will be looking good, with a nice line of smoke and then, all of a sudden, kinda stall for a second and then puff out a thick "wad" of smoke and right back to a nice line of smoke again.
It seems as tho the flu is not drawing properly.
I wonder if adding a stainless flue extention would fix the problem ?

But I still wonder why after 4 seasons the flu is suddenly not tall enough ?
 
Any chance you can post photos of:
- view of stove in fireplace
- inside view of the insert such that we can see the inside firebox?
- the top of the chimney

Just to confirm, this is a non-insulated liner in a exterior brick chimney. Also, you are having these problems when it is < 20* outside.

Has the temp ever risen to > 30* and if so, did the insert have same problem?
 
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