Marathon Tri-Fuel Furnace Coal Burning Blues

Marathon Tri-Fuel Furnace Coal Burning Blues

PostBy: cheechblu On: Sun Feb 13, 2011 9:07 pm


Coals keep going out on me. Manual says to keep air intake slot door open. This is above the coals. Might this be my problem? Furnace burns wood beautifully, has no barometric damper but great draft, 8" pipe, damper control on flue pipe, and damper door to ash tray. Burn strictly anthracite. Any tips are appreciated. Thanks.
cheechblu
 
Hand Fed Coal Furnace: Marathon Yankee Coal & Wood
Coal Size/Type: Nut/Anthracite
Other Heating: Jotul Fireside Woodstove
Stove/Furnace Make: Marathon
Stove/Furnace Model: Yankee

Re: Marathon Tri-Fuel Furnace Coal Burning Blues

PostBy: lsayre On: Sun Feb 13, 2011 9:12 pm

Air above the coal sounds like a bituminous requirement.
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Anthracite Pea
Other Heating: Resistance Boiler (if I ever get it fixed)

Re: Marathon Tri-Fuel Furnace Coal Burning Blues

PostBy: coaledsweat On: Sun Feb 13, 2011 9:37 pm

cheechblu wrote:Manual says to keep air intake slot door open. This is above the coals. Might this be my problem?

Most likely, anthracite wants all the air from below. Get it going good and fill it up all the way. It likes it deep.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Visit Lehigh Anthracite

Re: Marathon Tri-Fuel Furnace Coal Burning Blues

PostBy: blrman07 On: Sun Mar 16, 2014 5:46 pm

Wood and bit coal wants air across the top. Anthracite coal wants it ALL from the bottom up. Air going across the top of anthracite doesn't help except when you initially load it up. The xtra air across the top helps to burn off the gases being generated. Once they are burned close the top air and go only with bottom up air.


Last bumped by cheechblu on Sun Mar 16, 2014 5:46 pm.
blrman07
 
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Baseburners & Antiques: rebuilding a 1906 March Brownback Double Heater, reblacking a UMCO 1920's Pot Belly
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.

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