Red Ash or White Ash

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SMITTY
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Posts: 11912
Joined: Sun. Dec. 11, 2005 12:43 pm
Stoker Coal Boiler: Patriot Coal - (custom built by Jim Dorsey, Taunton MA - RIP 4/18/13)
Hand Fed Coal Stove: Harman Mark III (SOLD!)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler
Location: West-Central Mass

Post Tue. Feb. 09, 2010 8:43 pm

The ash from the Kimmels bagged nut I've used in years past sounds exactly like the Superior you describe.

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efo141
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Joined: Thu. Jun. 05, 2008 8:25 pm
Stove/Furnace Make: New Yorker/Keystoker
Stove/Furnace Model: WC90-----/Kaa-2
Location: Western MA

Post Tue. Feb. 09, 2010 9:14 pm

I have a friend burning Superior nut in his hand fired Harman boiler and have seen softball size clinkers it makes.

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Lightning
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Posts: 8443
Joined: Wed. Nov. 16, 2011 9:51 am
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size
Location: Olean, NY

Post Tue. Oct. 30, 2012 10:47 pm

Wow, very interesting thread! The coal I used last year had a light grayish white color to it. It burned great, although I never compared it to anything since it was my first year. It produced a lot of pieces in the ash, many quarter sized flat and had a resemblance of bone. Many of these pieces were marbled with a brown color. It had many smaller pieces too the same way. I haul my coal with barrels. A barrel of this coal weighed in at about 420 pounds.

Now this year, my dealer is getting his coal from a different supplier. And its only $200 per ton instead of $235 per ton last year for the white ash coal. This coal produces an ash that has a very red hue to it. Kinda looks like the surface of Mars. It mostly burns down to a fine powder and I hardly have any of these pieces that I described with the coal I used last year. Other than the powdery ash, there is some unburnt coal pieces that fall through. Seems more stubborn to shake down. This coal weighs in at about 480 pounds per barrel.

SO you can see the coal I have this year is more dense. Also, it seems to burn longer, hotter, and it seems to not burn down as fast. Just today when I opened the load door to check it, it looked like I just filled it, that was after a 15 hour burn. I shook it down good and only had to add 2 shovels (15 pounds) to bring it back up to where it was. I don't need to push my furnace very hard to keep warm so hopefully I won't have the clinker problem that seems to be associated with red ash coal.

IN the pics below, I put a blue eraser in there for a reference color..

Overall, I think I'm going to prefer this red ash coal over the white ash that I used last year.. :D
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2001Sierra
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Joined: Wed. May. 20, 2009 8:09 am
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
Location: Wynantskill NY, 10 miles from Albany

Post Tue. Oct. 30, 2012 11:09 pm

Stokers do not much care. Stokers handle the clinkers as a mass that are pushed off the stoker feed plate. The hand feds need to be shaked, or rocked. So the hand feds can get bound up depending on if they are rockers or shakers. Rockers can get bound up with the fused red ash "iron", shakers cannot dump the fused material. I once owned a Buderus shaker, well before this forum, and not paying attention I too was confused as why some burnt well and others did not. No one ever mentioned white ash or red ash :oops:

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Blackdiamonddoug
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Joined: Wed. Jun. 11, 2008 8:52 am
Stove/Furnace Make: axemen 260 rebuilt by Matt
Stove/Furnace Model: stoker AA 260
Location: haverhill Ma

Post Wed. Oct. 31, 2012 8:40 am

Just got a load of hudson coal ash is very white burns all coal no unburned coal in the ash

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