kaa-2 stoker question

kaa-2 stoker question

PostBy: 1975gt750 On: Sun Feb 17, 2008 9:14 pm

is it common to get some coal comming out of the rear of the stoker on a kaa-2. it seems after a week of running i am seeing coal on the floor under the stoker just wondring if it is normal.
1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

Re: kaa-2 stoker question

PostBy: watkinsdr On: Sun Feb 17, 2008 10:11 pm

I'm having the same problem with my Keystoker Koker. I believe the response from Keystoker is to shut down the stove/furnace/boiler and look for areas which cause resistance to the coal's flowing from the hopper to the fire area. Supposedly sanding/smoothing any surface irregularity will allow the coal to flow unimpeded through the stoker mechanism.

I believe I've see more unburned coal when my furnace has more idle time, during warmer temperatures. Seems, with cold weather, with the Koker really cranking out heat, I see fewer bits of rice coal in the bottom of the unit.

I'm currently cleaning up these unburned bits of rice coal with a shop vac. I plan to screen out the ash from the unburned coal; and, put the good coal back in the hopper---so, I'm really not really wasting coal yet, it hasn't been thrown out with the ashes. It's just seems like a waste to see this perfectly good coal ending up at the bottom of the furnace ash collector.

My problem is so small, I don't plan on looking into the problem until the heating season is over.
watkinsdr
 
Stoker Coal Boiler: AHS S260 Boiler

Re: kaa-2 stoker question

PostBy: 1975gt750 On: Sun Feb 17, 2008 10:36 pm

i am getting a 100% burn no wasted coal inside the unit . the coal i am seeing is comming out of the back of the stoker where the adjustment is. the coal is ending up on the floor outside of the stove.
1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

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Re: kaa-2 stoker question

PostBy: beatle78 On: Sun Feb 17, 2008 10:38 pm

:gee: :gee: :gee: .......

Does the stoker on the KA-4 & KA-6 do the same thing?
beatle78
 
Stove/Furnace Make: Keystoker KA-4

Re: kaa-2 stoker question

PostBy: 1975gt750 On: Sun Feb 17, 2008 10:52 pm

dont know about that maybe som ka-6 guys could chime in and let us know. i do know that the kaa-2 has the same stoker as a keystoker 105. the amount of coal is not much i say about 20 chips on the floor in weeks worth of time could be normal
1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

Re: kaa-2 stoker question

PostBy: watkinsdr On: Sun Feb 17, 2008 11:40 pm

I'd call Keystoker and discuss with them. Do you have this same problem even after adjusting the stoker adjustment knob?? It sounds like your stroke is just a little bit too long. Has Mike looked at the problem?? He has a 105K in his showroom. Might want to ask if he's ever seen this problem.
watkinsdr
 
Stoker Coal Boiler: AHS S260 Boiler

Re: kaa-2 stoker question

PostBy: gaw On: Mon Feb 18, 2008 6:34 am

beatle78 wrote::gee: :gee: :gee: .......

Does the stoker on the KA-4 & KA-6 do the same thing?

No, the stoker is completely different. There is no opening in the rear of the stoker mechanism.
gaw
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice from Schuylkill County

Re: kaa-2 stoker question

PostBy: coalburnin On: Sat Feb 23, 2008 11:40 am

I have a K6 and have the same issue with coal dropping out . if you look at your paper work you got with your boiler there is a exploded view of your burner unit . The Throat strap , #11, is held there and adjusted by a bolt on each side . the slott that allows you to adjust is where the coal comes out .I am going to use a larger washer to address this prob in the spring . WHen i use buckwheat coal i dont have this prob ,only when i am useing rice coal that seems to be real fine . hOPE THIS HELPS
coalburnin
 
Stove/Furnace Make: k-6 keystoker boiler
Stove/Furnace Model: k-6

Re: kaa-2 stoker question

PostBy: 1975gt750 On: Sun Feb 24, 2008 10:11 am

thanks for the info but the stoker used on the kaa-2 is diffrent than the stoker used on a ka-6. the stoker i have is also used on the keystoker 90&105
1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

Visit Lehigh Anthracite