Faq About Coal in a Grain or Pellet Stoker???

A Coal stoker furnace or stove controls most operations including automatically feeding the coal. They are quite similar to any conventional oil and gas units and easily operated for extended periods of time. They commonly use rice coal but may use larger sizes like buckwheat. They can be used as primary heat, supplementary heat or have a dual set up with your existing oil/gas furnace.
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beatle78
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Posts: 1026
Joined: Wed. Oct. 03, 2007 1:46 pm
Stove/Furnace Make: Keystoker KA-4
Location: Rhode Island

Post Mon. Mar. 07, 2011 12:49 pm

Looks like there is one adjustment that would need to be made.....

Took this from the thread at hearth.com... https://www.hearth.com/econtent/index.php/forums/ ... 32376/P22/

"In reality almost all pellet stoves should never see coal used in them, your stove is a knock off of the Harman 44 mag coal stove and the difference is the amount of air allowed through the grate, coal needs more. If you burned pellets in the 44 mag the amount of air would blow the pellets off the grate."

:lol: I have visions of myself running around the house trying to pickup pellets that blew around in the "wind" hahaha.

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McGiever
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Posts: 5997
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Coal Size/Type: PEA / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek
Location: Junction of PA-OH-WV

Post Mon. Mar. 07, 2011 1:31 pm

The take away message here folks...If it ain't a UNDER-FED pellet stove, DON'T try this!

This just happened to be a coincidence that the Harman 44 Mag. shared some early technologies w/ Harman's pellet stoves...or maybe the other way around.
Harman then promptly made a better adaptation strictly for coal...the Harman ST8-VF8, and even that was soon replaced w/ the Harman Magnum Stoker.

Please don't go telling people "You saw that it is okay to burn coal in their pellet stoves" There is a lot more to the story than that! :?
SLOW AND STEADY WINS THE RACE

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Richard S.
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Posts: 12710
Joined: Fri. Oct. 01, 2004 8:35 pm
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite
Location: NEPA

Post Mon. Mar. 07, 2011 3:24 pm

beatle78 wrote: :lol: I have visions of myself running around the house trying to pickup pellets that blew around in the "wind" hahaha.
I have visions of you trying to put out the fire in the hopper. ;)
"The difference between stupidity and genius is that genius has its limits."

- Albert Einstein

shapps1313
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Posts: 59
Joined: Sun. Sep. 28, 2008 10:30 am
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Post Mon. Mar. 07, 2011 9:21 pm

There is alot more to the story. I will not share it in a public forum nor will I recommend that anyone try it. Corn is for liquor,pellets are for horse bedding and coal is for keeping warm. Do not try to burn any one of them in an appliance not specifically designed for each individual one. Sorry thats my story and I'm stickin to it.

Bill


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beatle78
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Posts: 1026
Joined: Wed. Oct. 03, 2007 1:46 pm
Stove/Furnace Make: Keystoker KA-4
Location: Rhode Island

Post Tue. Mar. 08, 2011 12:37 pm

Richard S. wrote:I have visions of you trying to put out the fire in the hopper. ;)
:lol: Well it will be warm! :oops:

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casino_boy
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Posts: 104
Joined: Sun. Aug. 23, 2009 11:20 pm
Hand Fed Coal Furnace: Htzer 82 FA
Coal Size/Type: Lump Bit
Location: South Dakota

Post Sun. Mar. 20, 2011 1:35 pm

I often thought that using lignite coal ground up and mixed with corn and run through a peller mill to make pellets might work.
The lignit is about the same BTU as hardwood pellets per pound.
Dont know if it would make pellets or not but might be worth expermenting.
That might work for the rest of the pellet stoves.

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Carbon12
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Posts: 2230
Joined: Tue. Oct. 11, 2011 6:53 pm
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace
Location: Harrisburg, PA

Post Thu. Mar. 06, 2014 8:49 pm

See here
No matter where you go,......there you are.

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blrman07
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Posts: 2379
Joined: Mon. Sep. 27, 2010 3:39 pm
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.
Location: Girardville Pa.

Post Fri. Mar. 07, 2014 8:35 am

I had a rice burning paddle fed hopper and inclined flat grate in my last coal stove. The nameplate said rice coal only.

I had a little home garden and grew some field corn. As an experiment I added corn to the rice coal. I measured by volume to 10% corn to rice and it burned just fine. Then I went to 25% and it still burned fine. I went to 40% corn to rice coal and it still burned good. I had no problem with it coking up on the grate. I was told that it wouldn't burn any corn and would instead do one of two things.
1. coke up the grate
2. burn back into the hopper and burn the house down

Neither happened or even came close. I never tried wood pellets because I figured the paddle would break them up and then I have flammable dust at the base of the hopper building up.

I would be hesitant about burning rice coal in a pellet stove due to the construction of the burn cup. Coal stoves that I have seen have heavy duty cast iron burn surfaces or refractory lined due to the intense heat generated by the coal bed. Most corn or pellet stoves have burn cups made of carbon steel. I'm no metallurgist but it would seem to me that the hotter burning rice coal would really shorten the life span of a burn cup made of carbon steel.

Now if you could fabricate a burn cup from cast iron...... :)

Rev. Larry
New Beginning Church
Ashland Pa.
Rev. Larry
Ashland Pa.

1 John 1:9... If we sin and we confess that sin He is faithful and just and will forgive us and cleanse us from all unrighteousness.


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blrman07
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Posts: 2379
Joined: Mon. Sep. 27, 2010 3:39 pm
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.
Location: Girardville Pa.

Post Fri. Mar. 07, 2014 8:49 am

WOW WOW WOW.... I went over to hearth.com and read that thread about mixing rice coal and wood pellets through a pellet stove. I have never seen such vitriolic attacks in a long time!!!

One person actually said that burning coal in your home puts your children and spouse in danger. They went further to state that even properly operated coal stoves kill 20 people a year. They furthered this nonsense by saying that if you burn coal and anything happens that you should be charged with manslaughter or at least 3rd degree MURDER.

Amazing... I need more coffee.

Rev Larry
New Beginning Church
Ashland Pa.
Rev. Larry
Ashland Pa.

1 John 1:9... If we sin and we confess that sin He is faithful and just and will forgive us and cleanse us from all unrighteousness.

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titleist1
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Posts: 4404
Joined: Wed. Nov. 14, 2007 4:06 pm
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
Location: Cecil County, MD

Post Fri. Mar. 07, 2014 8:54 am

blrman07 wrote:One person actually said that burning coal in your home puts your children and spouse in danger. They went further to state that even properly operated coal stoves kill 20 people a year. They furthered this nonsense by saying that if you burn coal and anything happens that you should be charged with manslaughter or at least 3rd degree MURDER.

Amazing... I need more coffee.
meh.....look at the bright side Larry.....people reading that and believing it won't convert to coal and it will be less likely that we will have the same panic they currently have trying to source fuel! They are actually doing us a service! :up:
I drive a VW TDI, heat my home & workshop with two coal stokers and have two vintage JD diesel tractors....
The EPA just loves me!!

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Richard S.
Mayor
Posts: 12710
Joined: Fri. Oct. 01, 2004 8:35 pm
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite
Location: NEPA

Post Fri. Mar. 07, 2014 11:40 am

blrman07 wrote: One person actually said that burning coal in your home puts your children and spouse in danger. They went further to state that even properly operated coal stoves kill 20 people a year. They furthered this nonsense by saying that if you burn coal and anything happens that you should be charged with manslaughter or at least 3rd degree MURDER.
Generally speaking Larry the people at Hearth.com have their heads on straight. I frequently correspond with Craig who started it, he even appeared on one episode of coalcast.

Coalcast Ep12: "Craig Issod From Hearth.Com" - February 4th, 2010
"The difference between stupidity and genius is that genius has its limits."

- Albert Einstein

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