Chimney draft

 
MINO
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Post by MINO » Mon. Nov. 28, 2022 4:24 pm

Jkohanski wrote:
Sun. Nov. 27, 2022 11:01 pm
Good to draft is better. Hope the blaschak coal mix does the final trick.
I’m getting there brother!


 
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Post by MINO » Mon. Nov. 28, 2022 4:25 pm

McGiever wrote:
Mon. Nov. 28, 2022 7:59 am
Could you show us equal quantities of your present coal alongside the new Blaschak coal?
Curious as to the percentage of undersized pieces ratios in each. The size grading can change the behavior of the fire from one coal load or brand to another.
Blashack on the left Harmony/Glennburn on the right

Attachments

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Left blashack right harmony


 
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Post by MINO » Mon. Nov. 28, 2022 4:35 pm

Well got home scooped out the hopper and got down in the throat as far as I can into the feed tube …. Loaded up 6 1/2 40 lb bags of blashack into hopper packed tight…. And 2 1/2 bags left over to add…. 9.99 a bag ouch!!!! Hopefully by tomorrow it will get down into the burn chamber with all blashack… draft is .02 at idle and it’s pretty mild today and lil breezy… fire is still high the pic isn’t as vivid as it looks with the cherry coals as it does with the naked eye…I have ash temp at 150 and grate temp sitting at 180. Pics of how it looked after work….

Attachments

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Flue temps at idle

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Idle fire

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Ash


 
MINO
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Post by MINO » Mon. Nov. 28, 2022 4:38 pm

Rob R. wrote:
Mon. Nov. 28, 2022 11:27 am
Buck will make the fire slower to respond and reduce maximum output a bit, but there is not supposed to be much air being drawn through the fire in the first place. If the boiler is oversized for the load, there is no harm in switching to buck. It should be a bit easier on the auger as well.
that’s what I kinda thought …it does say it can burn bucks and truly I don’t need max output until the pole building comes online… and your right the auger would thank me!!!… but I really want to get it dialed in the right way on pea!. … it’s truly testing my sanity!!!

 
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Lightning
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Post by Lightning » Mon. Nov. 28, 2022 5:54 pm

I have an Axeman 130. Sometimes it will climb high, but it seems to lower itself at other times.. Does yours go back and forth? or is it always trying to climb up into the throat of the fire chamber chute? I'm wide eyed to see if the different coal has any influence.

 
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Post by MINO » Mon. Nov. 28, 2022 6:48 pm

Lightning wrote:
Mon. Nov. 28, 2022 5:54 pm
I have an Axeman 130. Sometimes it will climb high, but it seems to lower itself at other times.. Does yours go back and forth? or is it always trying to climb up into the throat of the fire chamber chute? I'm wide eyed to see if the different coal has any influence.
Honestly this a new piece of machinery I have… so in the summer it was mostly on stand by …while I was in the garage there was a call on it and it ashed and I do have some black coal now up top like maybe an inch or so but it seems like when it’s real cold out or windy the boiler cycling more per day it always has a high fire…. Time will tell I guess Wednesday in my area supposed to have 25 mph sustained winds and gusts 35-40 so I’m curious how that’s going to play out also… to add I assume the blashack worked it’s way into the boiler while I was out there because I can hear it crackling with the harmony I didn’t have that… also over the summer on blashack I had black coal laying on the floor by the sight tube where the crackling popped pieces out the flapper…like little shards…

 
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Post by lzaharis » Tue. Nov. 29, 2022 2:03 pm

Hello MINO

Did you call the folks at Rockford Chimney supply and ask about a chimney extension for your chimney?

They can custom make one much taller in their fabrication shop to make a taller chimney for you.

Did you remove the draft inducer?


 
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Post by MINO » Tue. Nov. 29, 2022 2:10 pm

lzaharis wrote:
Tue. Nov. 29, 2022 2:03 pm
Hello MINO

Did you call the folks at Rockford Chimney supply and ask about a chimney extension for your chimney?

They can custom make one much taller to make a taller chimney for you.

Did you remove the draft inducer?
I have sent them an email and they gave me an extension to call when im ready..... inducer is still on the pipe but not hooked up... 2 hours i will be home to check if the new coal is any different from the previous supplier and i will post results..... "IF" it looks good i will wait until thursday to pull the trigger on an extension because wednesday into thursday there is going to be pretty good winds coming thru and if it pulls draft hard and stokes the fire with the wind drawing on the chimney I will order from rockford... Thanks for checking in!

 
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Post by Lightning » Tue. Nov. 29, 2022 3:24 pm

MINO wrote:
Tue. Nov. 29, 2022 2:10 pm
i will wait until thursday to pull the trigger on an extension
I don't quite understand why you would want to add an extension to the chimney. You've been dealing with a high draft issue. Extending the chimney will just increase your draft.

 
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Post by MINO » Tue. Nov. 29, 2022 3:37 pm

Well here is the update… took about 50 lbs to top off hopper so some blashack surely has been eaten up in 24 hours ….42 today and very calm so boiler had some calls for heat over the night … tomorrow will be the tell tale with wind being a factor …also but very pleased with results…. I have grate at 145 and I forced a heat call and got full burn and took a pic…. The pics are tough to tell because the reflection off the coal makes it look higher than it really is…. I will take pics later tonight….but I’m leaning toward it’s the coal??? Can’t be 100 percent sure but what I’m seeing is much better than any adjustments I made prior….also my grate temp is dropping down to like 118 during the heat call when before I couldn’t even get close to that temp….

Attachments

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This morning

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Ash

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Full burn


 
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Post by MINO » Tue. Nov. 29, 2022 3:41 pm

Lightning wrote:
Tue. Nov. 29, 2022 3:24 pm
I don't quite understand why you would want to add an extension to the chimney. You've been dealing with a high draft issue. Extending the chimney will just increase your draft.
I’m waiting to see if the coal is truly the culprit… but that extension comes available with wind baffle … I want to see in next 2 days while I’m on blashack and the fire is looking better if a windstorm stokes the fire…I would get the 24 inch with wind baffle if needed….

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Post by Lightning » Tue. Nov. 29, 2022 3:45 pm

Yeah absolutely, a wind baffle would be a great benefit if it turns out to be the draft is causing your high fire. Question though... If the wind is causing unwanted combustion, do you notice the boiler overshooting ?

 
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Post by MINO » Tue. Nov. 29, 2022 4:21 pm

Lightning wrote:
Tue. Nov. 29, 2022 3:45 pm
Yeah absolutely, a wind baffle would be a great benefit if it turns out to be the draft is causing your high fire. Question though... If the wind is causing unwanted combustion, do you notice the boiler overshooting ?
Never seen an overshoot …. 24/7 circulation I seen maybe an 8 degree overshoot but not 3 mile island type of overshoot….. I’m really happy with the outcome of the new coal…. pics are hard to tell by but the fire truly dropped ….

 
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Post by lzaharis » Tue. Nov. 29, 2022 4:43 pm

More on chimneys and pressure gradients.

www.woodheat.org/wind-chimney.html

The last five paragraphs on the page help understand it a great deal more.

 
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Post by MINO » Tue. Nov. 29, 2022 4:56 pm

lzaharis wrote:
Tue. Nov. 29, 2022 4:43 pm
More on chimneys and pressure gradients.

www.woodheat.org/wind-chimney.html

The last five paragraphs on the page help understand it a great deal more.
Oh I’m sold!!! I just want to see what happens over next 48 hrs and I have the direct extension to make the order!! Good info!!! Much appreciated


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