Coal gun 260

 
MINO
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Post by MINO » Tue. Nov. 15, 2022 6:55 pm

Question for the axe and AHS burners…. I had Blashack coal to burn over summer and had grate ash temp at 118 and it left a good column of fresh coal out of the throat of the hopper I now am running harmony/Glenn burn and it seems to burn a bit quicker and it’s creeping up the fresh pile closer to the throat of the hopper feed tube I since turned the grate ash temp over the course of 48hrs from 118 to 130 and now sitting at 140 and this is what I got…. Should I bump ash temp up more cpl more degrees? Pics of before current and ash….. now this is installed in April and now finally under a heavy load….

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Blashack

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Harmony/glennburn

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Current ash

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Jkohanski
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Post by Jkohanski » Tue. Nov. 15, 2022 8:18 pm

Bump it up try 145, to be honest, compared to the picture in the manual your looking good, as you want about 25% to 50% unburned on top. I Had my ahs 260 run that hi on blashack and never thought twice. Another thought would be to flip the ashing switch to mode 1, so it can ash when fan is not running. Mode 2 is better for prevention of puff back, but with a good draft should not be an issue for you.
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MINO
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Post by MINO » Tue. Nov. 15, 2022 8:40 pm

I have the older model I don’t have mode 1 or 2 it use to ash when no call for heat I wired it to ash only when combustion motor is running… I actually bumped it up to 145 my current coal seems to burn a bit quicker …. I will check it in the morning then after work to let it cycle and run a bit … i just want it maybe a bit lower than feed tube… with blashack it was on point like the manual calls for…. I did notice tho grate temps rising a bit too so hopefully the fire is starting to go lower in the pot…. If all fails I’ll do the poker to see how far down fire goes…

 
Jkohanski
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Post by Jkohanski » Tue. Nov. 15, 2022 9:40 pm

MINO wrote:
Tue. Nov. 15, 2022 8:40 pm
I have the older model I don’t have mode 1 or 2 it use to ash when no call for heat I wired it to ash only when combustion motor is running… I actually bumped it up to 145 my current coal seems to burn a bit quicker …. I will check it in the morning then after work to let it cycle and run a bit … i just want it maybe a bit lower than feed tube… with blashack it was on point like the manual calls for…. I did notice tho grate temps rising a bit too so hopefully the fire is starting to go lower in the pot…. If all fails I’ll do the poker to see how far down fire goes…
Sounds like your on track. Amazing how different the coal burns from mine to mine. Or is it that our boilers are so fine tuned, that we see the difference so quickly.

 
MINO
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Post by MINO » Wed. Nov. 16, 2022 4:23 pm

Jkohanski wrote:
Tue. Nov. 15, 2022 9:40 pm
Sounds like your on track. Amazing how different the coal burns from mine to mine. Or is it that our boilers are so fine tuned, that we see the difference so quickly.
It could be? I just came home from work today and checked it out and there is no change in fire height so I am at a loss it was cycling when I came home and I looked in ash door and seen a faint glow so the fire definitely dropped down but it’s still up pretty high so I knocked it down some …. I wonder if I should bust up the fire bed with a poker? But the ash seems to be very fine and no clinkers so it’s not like it’s bound up inside….but hard to tell also today is pretty windy and it’s moving the flap on the boiler pretty good as well as the dampener so it’s drawing extra air thru the fire bed … with the cold temps it’s definitely cycling a lot more but I’m kind of at a loss with the fire height

 
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hotblast1357
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Post by hotblast1357 » Wed. Nov. 16, 2022 6:42 pm

Just leave it be for a couple days, these things react very slowly, unless the fire gets to high, if it does manually ash it while the fan is on, I would never ash it when the fan is off.

 
MINO
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Post by MINO » Wed. Nov. 16, 2022 7:37 pm

hotblast1357 wrote:
Wed. Nov. 16, 2022 6:42 pm
Just leave it be for a couple days, these things react very slowly, unless the fire gets to high, if it does manually ash it while the fan is on, I would never ash it when the fan is off.
I just had a good lengthy convo with jkohanski and found out that somehow we caught the hystesis was set somehow +5 however I agree i have to let it go for long periods to see any change… however I did the poker and firebed is good and I also poked around with crowbar to break things up a bit…..but I believe the coal I have is very volatile and burns pretty quick as I am only half a ton into the new batch because I have fire from top to about 2 inches of the sled…..also my ash is a bit granola and powder…. I also believe that the wind tonight is also contributing to a hotter fire my dampener is dancing pretty good but my flapper on boiler is only jiggling…..it just has me stumped to it being close to the fill tube …. Pic of about 30 min ago prior to finding out hyst was set at 5 I put it to zero now and have ashing set to 145 if I set any higher it will be pulling hot coal from the bottom

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Jkohanski
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Post by Jkohanski » Wed. Nov. 16, 2022 8:11 pm

Looks ok, just on max of high side. See what the morning brings. Hope the settings work out.

 
MINO
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Post by MINO » Wed. Nov. 16, 2022 9:12 pm

Jkohanski wrote:
Wed. Nov. 16, 2022 8:11 pm
Looks ok, just on max of high side. See what the morning brings. Hope the settings work out.
Thanks for all the help … much appreciated

 
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hotblast1357
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Post by hotblast1357 » Thu. Nov. 17, 2022 7:09 am

You need to address the site flap being pulled shut while the fan isn’t running, that’s a problem.

 
MINO
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Post by MINO » Thu. Nov. 17, 2022 8:38 am

hotblast1357 wrote:
Thu. Nov. 17, 2022 7:09 am
You need to address the site flap being pulled shut while the fan isn’t running, that’s a problem.
the flap on the boiler is not sucking completely shut i do have the site hole opened up a bit on the flapper and it moves ever so slightly as for the damper on the stack thats dancing around pretty good... however the fire had about 2-3 inches of fresh coal this morning out of the feed tube......but its not a true 24-48 hr settle in period since the adjustments..... as for the wind where im located is in a tight valley so 10mph wind is amplified where im at ...... when i first fired it in april the flap did suck completely shut since then it has been rectified with adjustments

 
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hotblast1357
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Post by hotblast1357 » Thu. Nov. 17, 2022 12:57 pm

But you poked the fire down, which was a separate change not associated with the ash temp change, so your gonna have to wait that much longer to see which change actually fixed and lowered the fire.

 
MINO
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Post by MINO » Thu. Nov. 17, 2022 6:55 pm

hotblast1357 wrote:
Thu. Nov. 17, 2022 12:57 pm
But you poked the fire down, which was a separate change not associated with the ash temp change, so your gonna have to wait that much longer to see which change actually fixed and lowered the fire.
Totally understood on waiting for changes….. before I caught what was going on I was at 125 on the ash (blashack coal) everything was perfect…. Now I’m about 1/2 ton into my new coal (Glenn burn/harmony) and I started to see the fire creep up here’s the head scratcher tho ash looked fine at the original settings I am now 150 on the ash and everything is the same, fire is high and ash looks exactly the same it’s maybe 2 inches of ash and with my phone I videoed above the grate and can see a orange glow… yes my grate temp is 180 now at idle when it was around 150 prior so fire dropped lower but still high on the feed side…. Yes it’s a bit more windy but all my original problems prior was rectified over the summer with draft issues . Also my stack temp always was consistent around 300 at full burn with both coal suppliers …. I truly think that I bought a dump trailer of rocket fuel …. Over next day or so I’m going to load the hopper with blashack coal and see what my results are to confirm my suspicions as I feel I exhausted all the common sense items because the only thing that changed was the coal…. Also want to give a shout out to jkohanski for his help and phone calls to checkup on my situation… much appreciated!

 
Jkohanski
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Post by Jkohanski » Fri. Nov. 18, 2022 11:26 pm

Thanks for kind words, neat to talk with another s260 user. Keep us posted on what happens with the blaschak diet.

 
MINO
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Post by MINO » Sun. Nov. 20, 2022 1:41 pm

Jkohanski wrote:
Fri. Nov. 18, 2022 11:26 pm
Thanks for kind words, neat to talk with another s260 user. Keep us posted on what happens with the blaschak diet.
We’ll this morning I loaded 4 buckets of blashack into the boiler so time will tell…


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