unburned coal...i know...

Re: unburned coal...i know...

PostBy: Carbon12 On: Mon Feb 03, 2014 6:35 pm

Actually, I just read the keystoker direct vent manual. It calls for a barometric damper ??? Do you have one?
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: unburned coal...i know...

PostBy: Lightning On: Mon Feb 03, 2014 6:36 pm

Carbon12 wrote:Sorry if I went off topic. Many of us have been embroiled in the MPD vs. Baro battle all season. It was a lame attempt at humor. My bad,.....as they say :oops:


That's cool man.. I think the original poster was wondering if this had any merit.

Lightning wrote:Correct me if I'm wrong but I would think that there is a delicate balance between enough combustion air and too much combustion air that would help burn more of the coal, but also be counter productive since that extra air if excessive , would carry heat out the chimney before the stove could absorb most of it.

How's that for a run on sentence!!!

:woot:
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut Size / White Ash

Re: unburned coal...i know...

PostBy: Carbon12 On: Mon Feb 03, 2014 6:39 pm

Is this right?
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Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Visit Lehigh Anthracite

Re: unburned coal...i know...

PostBy: Carbon12 On: Mon Feb 03, 2014 6:44 pm

Elsewhere in the direct vent manual it states no barometric damper is required. Which is it???
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Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: unburned coal...i know...

PostBy: fuccillo111 On: Mon Feb 03, 2014 6:46 pm

i believe if you have dv no baro is required.
fuccillo111
 
Stove/Furnace Make: keystoker
Stove/Furnace Model: koker

Re: unburned coal...i know...

PostBy: titleist1 On: Mon Feb 03, 2014 7:00 pm

Is that fist pic of your fire when it has been at full burn for a while or is that a pic of the fire at 'idle'?
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: unburned coal...i know...

PostBy: oilman On: Mon Feb 03, 2014 7:25 pm

Carbon12 wrote:Actually, I just read the keystoker direct vent manual. It calls for a barometric damper ??? Do you have one?

all the new d.v.'s shipped the last 2 or 3 weeks now have an integral barometric damper.
oilman
 

Re: unburned coal...i know...

PostBy: fuccillo111 On: Mon Feb 03, 2014 7:45 pm

the pic was taken as soon as I got home so I don't know if it was calling for heat but that's not idle. the flame was about 6 inches tall so im assuming it was calling for heat
fuccillo111
 
Stove/Furnace Make: keystoker
Stove/Furnace Model: koker

Re: unburned coal...i know...

PostBy: 2001Sierra On: Mon Feb 03, 2014 11:56 pm

The last picture of your ashes looked terrible. I would really consider another coal source, as long as you have followed Keystoker's recommendations. Keep us informed, we will get it figured out.
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: unburned coal...i know...

PostBy: tomcat On: Tue Feb 04, 2014 12:40 am

The pictures of your ash shows unburned rock not coal. Coal veins have top and bottom rock on the outside of the coal. Strip mine use machine to extract the coal. Mixing of rock and coal is common from strip mines. The breakers don't always clean out all of that rock depending on there process efficiency.
tomcat
 
Stoker Coal Boiler: k-4 keystoker
Hot Air Coal Stoker Stove: old magnum
Hand Fed Coal Stove: 400 warm morning, sf250
Hand Fed Coal Furnace: sf3500
Coal Size/Type: rice and buck mix, stove, nut

Re: unburned coal...i know...

PostBy: fuccillo111 On: Tue Feb 04, 2014 6:17 am

When I break the black pieces up they're shiny like coal.
fuccillo111
 
Stove/Furnace Make: keystoker
Stove/Furnace Model: koker

Re: unburned coal...i know...

PostBy: Lightning On: Tue Feb 04, 2014 6:55 am

fuccillo111 wrote:When I break the black pieces up they're shiny like coal.


I agree. Its most likely coal.
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut Size / White Ash

Re: unburned coal...i know...

PostBy: WNYRob On: Tue Feb 04, 2014 9:34 am

From past posts through the years, others have tried to re-burn this "unburnt" coal and have found it doesn't burn. Even though it doesn't turn to dust, I believe the volatiles are still burnt off the coal, so it does give up its "pent up" energy even though it doesn't look like it. It is just the nature of the beast when you are running a stoker.
WNYRob
 
Hot Air Coal Stoker Stove: Keystoker Koker controlled with CoalTrol

Re: unburned coal...i know...

PostBy: McGiever On: Tue Feb 04, 2014 9:50 am

Talk to Keystoker or your buddy and find out how deep the coal-bed is/needs to be as it travels down the grate.
It is no different on a stoker grate than in a hand fired...full combustion happens easier with proper coal bed thickness. Too thin and it will struggle. Is your Koker sitting level? Some have jacked their stoves up some on one end to help thickness. Don't know about your Koker 160, but the A's and bigger have an adjustment for coal bed thickness. :idea:

If you change one, either air or feed or thickness, you will need to change the others for best burn.
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: unburned coal...i know...

PostBy: fuccillo111 On: Tue Feb 04, 2014 1:18 pm

I spoke to a well known dealer here in central New York and she suggested trying they're coal. Its blacshak that is oiledand seems to be the best around. Also she said the blacshak and reading coal seem to produce more fines than previous years, possibly blocking the gates faster. She also suggested backing off the t-stat to reduce clunkers,which I don't seem to have a lot of, to possibly prevent the coal bed from getting too "thick".
fuccillo111
 
Stove/Furnace Make: keystoker
Stove/Furnace Model: koker

Visit Lehigh Anthracite