Marathon wood/coal/oil boiler

Marathon wood/coal/oil boiler

PostBy: tucker11 On: Thu Jan 15, 2009 10:47 am

Hello,
First post...i am desperate...I have a boiler (http://www.marathonheaterco.com/boilers.html) model YCOB24...i am trying to burn coal for the first time in my life. I can't seem to maintain the 180-190 degree temperature. Any suggestions? How much coal do people burn a day? My water temperature right now is around 120 degrees, and i keep adding coal, but the thermostat just won't elevate...and when it does elevate it goes up to about 260-280 degrees and blows steam. I also have in-floor radiant heat, if that matters... I live in way upstate NY near the Canadian Border...anyone know of any coal distributors in the area? I am a newbie and any information would be helpful. Thanks
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: WNY On: Thu Jan 15, 2009 2:14 pm

Do you have the draft UNDER the coal open and a baro damper set up correctly to maintain a good draft for the stove?

What's your procedure for loading, shaking, etc....
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Thu Jan 15, 2009 2:16 pm

I shake the ash until i can see a red glow...then load a layer of coal through out...The damper is controlled automatically and is located in the ash door...
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Visit Hitzer Stoves

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Thu Jan 15, 2009 2:17 pm

What is the baro damper????
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: WNY On: Thu Jan 15, 2009 3:00 pm

Baro (or Barometric Damper) Regulates your draft, it goes in the exhaust pipe and opens/closes to maintain a constant draw on the stove. (Not recommended for wood) but normally used for coal and other heating devices.

http://www.fieldcontrols.com/pdfs/01575700.pdf
This link is broken, either the page no longer exists or there is some other issue like a typo.



Not be confused with a MPD or Manual Pipe Damper which many wood burners use to control the draft of the stove too, it's a manual handle in the stove pipe to choke down the heat coming out of the stove..

As for how much coal per day, depends on your heating situation....most of us can go thru 40-100#'s / day depending on what you are trying to heat.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Thu Jan 15, 2009 3:37 pm

Thanks for the info...any tips on keeping the temp regulated?
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: coaledsweat On: Thu Jan 15, 2009 7:55 pm

tucker11 wrote:I shake the ash until i can see a red glow...then load a layer of coal through out..
Thanks for the info...any tips on keeping the temp regulated?


A layer? It needs to be filled all the way up to make heat, to the top of the firebrick and then mound it up in the middle. Don't be bashful with the coal, it may take 2 or 3, 50# bags to fill it, once going it should make plenty of heat. It sounds like you are running a very thin fire, that's why it runs away.

Once the boiler is up to temperature, it should take care of itself, you will just have to adjust the draft for the range of outside temps.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: Marathon wood/coal/oil boiler

PostBy: Rob R. On: Thu Jan 15, 2009 8:01 pm

tucker11 wrote:Thanks for the info...any tips on keeping the temp regulated?


As mentioned above, a shallow fire will behave like you've described. Fill the firebox (probably 8" of so worth of coal) and see how it performs.

Do you have a dump zone setup with this boiler? Sometimes hand-fed units have problems overshooting and need a large dump zone for the excess heat.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Fri Jan 16, 2009 10:23 am

What is a "large" dump zone? I don't want to over fill it and have it over heat on me...i woke up this morning to find out that i had lost my fire...so i started it back up...very frustrated and pissed off...I do believe that i am being to bashful with my coal only because i don't want it to over heat...does it matter that i have radiant heat? Or that I have a combination boiler? Thanks
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: TimV On: Fri Jan 16, 2009 10:39 am

Take a few pics of your boiler.Show what your new load of coal looks like inside the firebox. Show pic of your barodamper.Show ash pan contents. Show damper on doors etc.
Not enough coal (your not burning wood) is one of the worst problems'shallow bad,heaping full a must do.
TimV
 
Hand Fed Coal Stove: Older Ashley Cabinet ( pre US Stove gobble up)
Hand Fed Coal Furnace: Energy King 480 EK
Coal Size/Type: Warm weather smaller coal. Cold weather larger coal.
Other Heating: Oil Furnace Backup when repairs are needed
Stove/Furnace Make: Energy King Furnace
Stove/Furnace Model: 480 EK

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Fri Jan 16, 2009 11:55 am

http://www.marathonheaterco.com/boilers.html Here is the link to my boiler...YCOB24. The contents of my ash pan are chunks and ash...the baro damper is just behind the boiler in the chimney pipe...if this is no help i can some pics to you later...thanks for the info.
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: tucker11 On: Fri Jan 16, 2009 1:12 pm

I am also heating my house using radiant infloor heating...the house is still under construction, but "weather tight". I see most people on here have just straight coal stoves...am i an outcast with a combination boiler? I am very new to this and getting very frustrated!!! Please help! Thanks
tucker11
 
Hot Air Coal Stoker Furnace: Marathon Wood/Coal/Oil

Re: Marathon wood/coal/oil boiler

PostBy: WNY On: Fri Jan 16, 2009 1:58 pm

People buy the multi fuel for the options, if one is not available, they can switch over. The combo's loose some efficiency since they have to be setup and adjusted slightly different for different fuels.

Most of us already have a heating system (gas or oil) and just add the separate coal only stove, furnace or boiler a heating source so we don't have to use the existing one.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Marathon wood/coal/oil boiler

PostBy: LsFarm On: Fri Jan 16, 2009 8:44 pm

Don't be concerned about adding too much coal.. the heat output of a coal fire is determined by the area of the fire, not the quantity of the fuel.. The depth of the coal bed which is the quantity of fuel available to burn determines the duration of the fire..

Load on the coal.. coal is a 'community' fuel. An individual piece of anthracite coal added to a fire will not burn.. even a handfull won't burn very well, but if you cover the whole firebox with 8" of coal, the burning pieces of coal support each other and make for a steady, reliable fire.

To control the heat output, just adjust the amount of combustion air entering the ashpan vents.. keep any air vents above the grate closed. All combustion air to a coal fire must come from under the fire, through the grates..

Hope this helps..
Greg L.
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Marathon wood/coal/oil boiler

PostBy: Hollyfeld On: Fri Jan 16, 2009 8:52 pm

LsFarm wrote:Don't be concerned about adding too much coal.. the heat output of a coal fire is determined by the area of the fire, not the quantity of the fuel.. The depth of the coal bed which is the quantity of fuel available to burn determines the duration of the fire..

Load on the coal.. coal is a 'community' fuel. An individual piece of anthracite coal added to a fire will not burn.. even a handfull won't burn very well, but if you cover the whole firebox with 8" of coal, the burning pieces of coal support each other and make for a steady, reliable fire.

To control the heat output, just adjust the amount of combustion air entering the ashpan vents.. keep any air vents above the grate closed. All combustion air to a coal fire must come from under the fire, through the grates..

Hope this helps..
Greg L.


I believe the above post should be added to an FAQ section.
Hollyfeld
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Visit Hitzer Stoves

cron