And then out of the blue ....
- lsayre
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- Location: Ohio
- Stoker Coal Boiler: AHS S130 Coal Gun
- Coal Size/Type: Lehigh Anthracite Pea
- Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
... my Coal Gun just experienced a moderate sized puff-back. And here I had gone a long time without one. I guess with this type of boiler one can never count them out completely.
With as cold as it is outside, draft is exceptional, so it was clearly not draft related. Somehow my boiler must have ashed too long and thereby fed too much fresh coal into the fire tube, while at the same time the fire must have traveled below the height at which it should properly reside to avoid the pesky puffs.
With as cold as it is outside, draft is exceptional, so it was clearly not draft related. Somehow my boiler must have ashed too long and thereby fed too much fresh coal into the fire tube, while at the same time the fire must have traveled below the height at which it should properly reside to avoid the pesky puffs.
- StokerDon
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- Stoker Coal Boiler: Gentleman Janitor GJ-5, Van Wert VA-600, Axeman Anderson130 X3.
- Hand Fed Coal Furnace: Harman SF3500 reduced down to 3 grates connected to its own plenum
- Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
- Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood
That seems like a strange thing to happen when the boiler is under a cold weather load. Did it harm any of your stove pipe?
-Don
-Don
- coaledsweat
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The fire is too deep, stop ashing to get it up closer to the surface. Not sure how you adjust an AHS but on an Axeman, you would turn the anthrastat down a bit. I had one puffback in my Axeman and it was a doozy! Now I run it so the fire breaks the surface on occasion. If you see a ring of live coals around the outside of the firetube, you have arrived.
- lsayre
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- Location: Ohio
- Stoker Coal Boiler: AHS S130 Coal Gun
- Coal Size/Type: Lehigh Anthracite Pea
- Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
I already have my ash temperature sensor dialed back to 105 degrees. If I hear another puff sometime tomorrow I will shut off the ashing for a few hours. I don't want to be playing games with it at night though.coaledsweat wrote: ↑Thu. Jan. 04, 2018 8:43 pmThe fire is too deep, stop ashing to get it up closer to the surface. Not sure how you adjust an AHS but on an Axeman, you would turn the anthrastat down a bit. I had one puffback in my Axeman and it was a doozy! Now I run it so the fire breaks the surface on occasion. If you see a ring of live coals around the outside of the firetube, you have arrived.
- McGiever
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- Coal Size/Type: PEA,NUT,STOVE /ANTHRACITE
- Other Heating: Ground Source Heat Pump and some Solar
Having "good draft" does not exclude from having any "puffback" in a AHS/AA/Eshland.
It is solely a product of BOTH a low fire position in fire tube and burying a very active fire in excessive amounts of raw coal.
Some have found it takes different setting(s) when load is to be greater during a colder weather event. Or, even when doing a start-up fire or relighting of a new fire due to having a robust fire along with possible aggressive ashing at this time.
It is solely a product of BOTH a low fire position in fire tube and burying a very active fire in excessive amounts of raw coal.
Some have found it takes different setting(s) when load is to be greater during a colder weather event. Or, even when doing a start-up fire or relighting of a new fire due to having a robust fire along with possible aggressive ashing at this time.
- hotblast1357
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Larry does your AHS ash only went then fan is running??
Maybe the fire pot bridged slightly, and then all of a sudden dropped and added a bunch of fresh coal?
Maybe the fire pot bridged slightly, and then all of a sudden dropped and added a bunch of fresh coal?
- lsayre
- Member
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- Joined: Wed. Nov. 23, 2005 9:17 pm
- Location: Ohio
- Stoker Coal Boiler: AHS S130 Coal Gun
- Coal Size/Type: Lehigh Anthracite Pea
- Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Yes, only when the fan is running. it is the UL certified and ASME 'H' Stamp model. Made in October of 2009.hotblast1357 wrote: ↑Fri. Jan. 05, 2018 6:12 amLarry does your AHS ash only went then fan is running??
Maybe the fire pot bridged slightly, and then all of a sudden dropped and added a bunch of fresh coal?