Ash Blockage

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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tzack
New Member
Posts: 8
Joined: Thu. Oct. 15, 2009 4:24 pm
Stove/Furnace Make: keystoker/hitzer
Stove/Furnace Model: 105000/354

Post Sat. Jan. 19, 2013 8:27 pm

Hello I have a keystoker105 and the ash is buildind up at the end and the coal is pushing around it. The ash is hard and in big chunks. Is this ok ? Did not have this problem last season.Any help would be grateful.Thank you

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dcrane
Verified Business Rep.
Posts: 3115
Joined: Sun. Apr. 22, 2012 9:28 am
Hand Fed Coal Stove: Crane 404
Location: Duxbury, MA./Hanson MA./Brockton, MA

Post Sat. Jan. 19, 2013 9:06 pm

Its not OK for coal to be pushing around the outsides of ash leaving you a dead spot of hard goo in the middle, I think most people would tell you to clean and check that the air holes are not clogged in the center of the grate which may cause improper burning of the coal making it fuse together in a clump. but hang in their because plenty of people here have experience with this unit and they will comment soon enough ;)


tzack
New Member
Posts: 8
Joined: Thu. Oct. 15, 2009 4:24 pm
Stove/Furnace Make: keystoker/hitzer
Stove/Furnace Model: 105000/354

Post Sat. Jan. 19, 2013 9:21 pm

Thank you. I will check them.

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Rick 386
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Posts: 2474
Joined: Mon. Jan. 28, 2008 4:26 pm
Stoker Coal Boiler: AA 260 heating both sides of twin farmhouse
Hot Air Coal Stoker Stove: LL Hyfire II w/ coaltrol in garage
Coal Size/Type: Pea in AA 260, Rice in LL Hyfire II
Other Heating: Gas fired infared at work
Location: Royersford, Pa
Contact:

Post Sat. Jan. 19, 2013 10:40 pm

tzack wrote:Hello I have a keystoker105 and the ash is buildind up at the end and the coal is pushing around it. The ash is hard and in big chunks. Is this ok ? Did not have this problem last season.Any help would be grateful.Thank you
Are you referring to big ash chunks at the end of the grate ??

Sounds like klinkers to me. Are you burning harder than normal ??

Did you switch brands of coal ??

Are you blowing more air up through the grate ??

Try increasing the amount of feed or decreasing the amount of air. Klinkers form when coal burns really hot and fuses together. It is also possible that the end of the grate has become rough and not allowing the normal flow of ash to take place. IOf you can, shut it down and do a thorough cleaning. Make sure the air holes are all opened up. Run a couple passes of 80 grit sand paper across the end of the grate. Refire it and see if there is any change and report back to us.

Rick
Master of "Trial and Error."

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