Common Stoker Terminology

Re: Common Stoker Terminology

PostBy: Matthaus On: Tue Mar 04, 2008 1:29 pm

stockingfull wrote:...Of course, my personal terror has to do with finding spares when necessary and making the replacements on a unit no longer in production.


No worries I think Greg and I have enough parts to keep you going as long as the grates hold up. :)
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel, natural gas
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite

Re: Common Stoker Terminology

PostBy: stockingfull On: Tue Mar 04, 2008 2:44 pm

Matthaus wrote:
stockingfull wrote:...Of course, my personal terror has to do with finding spares when necessary and making the replacements on a unit no longer in production.


No worries I think Greg and I have enough parts to keep you going as long as the grates hold up. :)


Thanks, looks like the "Dodge Boys" gots the parts!

Did the description of the feed mechanism make sense?
stockingfull
 
Stove/Furnace Make: Yellow Flame
Stove/Furnace Model: W.A. 150 Stoker Furnace

Re: Common Stoker Terminology

PostBy: LsFarm On: Tue Mar 04, 2008 4:41 pm

Yep, made sense to me, the rod attaches to the grates, probably some kind of a grate 'bed' or framework that either rolls or swings on a pivot or something similar to reduce friction...

The back and forth action creates a 'pumping' motion that feeds fresh coal, and shoves the ash off the end..

Maybe this spring when you shut it down for the summer and do your spring cleaning and maintenance, you can get some photos so we can all learn how it works..

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

Visit Lehigh Anthracite

Re: Common Stoker Terminology

PostBy: stockingfull On: Tue Mar 04, 2008 5:44 pm

LsFarm wrote:Yep, made sense to me, the rod attaches to the grates, probably some kind of a grate 'bed' or framework that either rolls or swings on a pivot or something similar to reduce friction...

The back and forth action creates a 'pumping' motion that feeds fresh coal, and shoves the ash off the end..

Maybe this spring when you shut it down for the summer and do your spring cleaning and maintenance, you can get some photos so we can all learn how it works..

Greg L

.


Yeah, I haven't figured out how it reciprocates so smoothly in such a hostile metal-to-metal environment. But somehow it does. I do have about 5/8" "throttle control" (adjustment of the throw on the grate), which is great for getting the most out of the fuel at varying temps. When it's mild, I shorten up the throw and trim the flue damper to maintain a lower vacuum, when it's real cold, I lengthen the throw and move the flue counterweight in to allow a faster fire. Keeps about 3900' pretty toasty even down to 0°. (But this place was built all-elec, so it's pretty well-insulated.)

I'll try to get some shots this spring but it's not the best "studio" in there, lighting-wise.
stockingfull
 
Stove/Furnace Make: Yellow Flame
Stove/Furnace Model: W.A. 150 Stoker Furnace

Re: Common Stoker Terminology

PostBy: StokerDon On: Sun Feb 23, 2014 9:08 pm

stockingfull wrote:
LsFarm wrote:Yep, made sense to me, the rod attaches to the grates, probably some kind of a grate 'bed' or framework that either rolls or swings on a pivot or something similar to reduce friction...

The back and forth action creates a 'pumping' motion that feeds fresh coal, and shoves the ash off the end..

Maybe this spring when you shut it down for the summer and do your spring cleaning and maintenance, you can get some photos so we can all learn how it works..

Greg L

.


Yeah, I haven't figured out how it reciprocates so smoothly in such a hostile metal-to-metal environment. But somehow it does. .

The answer is, lots of cast iron!

There is a 1" thick cast iron plate that the grates fit into. This grate plate is pulled up and down the ramp by the rod sticking out of the back of the stoker.

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This forces coal and ash down the grate on the up stroke, and loads coal onto the grate on the down stroke.

There seems to be a lot of variation over the years in these mechanisums. I have two of them and they are very different in how the linkage between the gear box and the grate plate is layed out. Member Dragonslayer has one that is different than the two that I have. That one Greg posted photos of earlyer in this thread is yet another variation.

The two that I have, everything is cast iron but the blower housing and the steel rods. Not only are the grates, side rails and grate plate cast iron, the whole base, blower extension, levers and coal feeders are all cast iron. The whole thing put together must be close to 200 pounds!

-Don
StokerDon
 
Stoker Coal Boiler: Yellow Flame "Competion Series" 3 grate boiler, Losch 475
Hot Air Coal Stoker Stove: Alaska Stoker1? can't figure out these dern Alaska names!!! It's a big old black one.
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Common Stoker Terminology

PostBy: StokerDon On: Sun Feb 23, 2014 9:19 pm

More photos of the stoker mech.

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Top cast iron coal feeder piece sets the hight of the coal on the grate.

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The cast iron feeder piece that sticks out the back is what the hopper fits into. this feeds coal to the grate.

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The Losch stoker uses a moving grate system also.

I hope this some what de-mistiffies The Yellow Flame inner workings a bit.

-Don
StokerDon
 
Stoker Coal Boiler: Yellow Flame "Competion Series" 3 grate boiler, Losch 475
Hot Air Coal Stoker Stove: Alaska Stoker1? can't figure out these dern Alaska names!!! It's a big old black one.
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Common Stoker Terminology

PostBy: Pa papa On: Wed Feb 26, 2014 10:08 am

:eek2:
WNY wrote:
COMMON STOKER TERMS

Stoker - The mechanism for pushing the coal onto the Burn Plate or Grate.

Combustion Blower - Keeps the coal burning, blows air under the coal bed up from the grate.

Convection Blower - Blower to move the heated air around the unit and into the room.

Flue Switch (Direct Vent) - Works in conjunction with the Direct Vent, in case of blockage or direct vent failure, the switch will shutdown the stove at a certain temperature. (Manual Reset on them)

Direct Vent - Powered exhaust vent, required if you do not have a high enough chimney, these are only required to be piped outside for a minimal distance.

Idle/Timer Box - This keeps the coals moving (stoker) when the thermostat is not calling for heat.
XX mins On / XX mins OFF. (ie. 2 Mins ON/10 Mins Off).

Thermostat Box - where you would hook your wall thermostat into the system.

Hopper - Where you put your coal.

Hi/Low Convection Fan Limit Switch - Used to turn the Convection Fan On/Off at certain temperatures.
(ie. 160 Deg. on / 120 Deg. Off - Adjustable). May have a Hi Limit (200 Deg.) to shut stove down in case of convection blower failure or over fire.


Some older stoves may just have Rehostats to control Burn/Feed Rates.


WTF (Water on The Floor) is another common term you may hear :wtf:
Pa papa
 
Stoker Coal Boiler: AHS-130
Coal Size/Type: Pea; anthracite
Other Heating: oil fired boiler; LP insert

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