Ash Removal , Barometeric Damper Screw Removal

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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franpipeman
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Posts: 203
Joined: Fri. Jan. 11, 2008 4:27 pm
Stoker Coal Boiler: efm 520 stoker fitzgibbons pressure vessel
Hand Fed Coal Stove: harman, russo
Coal Size/Type: rice
Other Heating: alpine propane condensing boiler radiant floor
Location: Wernersville pa

Post Tue. Nov. 08, 2011 6:47 pm

I have a 520 built when or near when I was born 53, I have a question about ash flow, the flat sheet metal was oxy aceytlened burnt out but I reinstalled it. I have noticed that newer models have different flat metal configuration with slots of the flat metal under the pot, from that eras ash removal . Is anyone able to educate me about this. Also on the barometric damper I am installing there is a screw installed on it that states remove for coal fueled units , the question why?.......................... there is so much I don't know.

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stoker-man
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Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Tue. Nov. 08, 2011 7:35 pm

All the sheet metal does is to direct the ash to the can and keep it from falling into the bottom of the base outside the can. Screw two pieces of angle iron to the side and slide in a piece of sheet metal with a hole in it and forget about it.

I have no idea what they are talking about by removing a screw in the damper.
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WNY
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Posts: 5849
Joined: Mon. Nov. 14, 2005 8:40 am
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
Location: Cuba, NY
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Post Tue. Nov. 08, 2011 7:36 pm

On the baro, its probably to reduce weight on the flapper, since coal can have a lower exhaust then a oil or gas fired appliance. So it responds quicker.
- Dave
Hyfire I & Keystoker 90K heating an 1890 Victorian
- Amsoil Authorized T1 Certified Dealer

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stoker-man
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Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Wed. Nov. 09, 2011 5:40 am

A picture would be good. The damper supplied with the stoker is the exact same damper as supplied with oil units.
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McGiever
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Posts: 5997
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Coal Size/Type: PEA / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek
Location: Junction of PA-OH-WV

Post Wed. Nov. 09, 2011 11:39 am

I have seen this tag/label also, it is found on all the Field Type M barometric Dampers.
No label show at wesite...but bolt can be seen middle right of center...http://www.fieldcontrols.com/m_mg1.php

It is simply a 10-32x1/4" machine screw w/ square nut attached to inside of the damper swing plate. Removing it will obviously leave a 3/16" hole and reduce the weight by that much from the swing plate.

What effect the removal has I can't say???
SLOW AND STEADY WINS THE RACE

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stoker-man
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Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Wed. Nov. 09, 2011 6:09 pm

The only thing that matters is if you can get a neg. .04 vacuum in the stack when it's firing hot.
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2001Sierra
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Posts: 1844
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 Wed. Nov. 09, 2011 11:39 pm

I have the same damper hooked up to my Keystoker 90. I have the screw in, and also checked the manual on their website and there is no mention of removing the screw :?

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McGiever
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Posts: 5997
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Coal Size/Type: PEA / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek
Location: Junction of PA-OH-WV

Post Thu. Nov. 10, 2011 12:01 am

2001Sierra wrote:I have the same damper hooked up to my Keystoker 90. I have the screw in, and also checked the manual on their website and there is no mention of removing the screw :?
Just like the OP, I have 2 of them here still in the box (NOS) that have the stickers w/ red arrow pointing to that screw and saying "remove bolt if plant is coal fired".

Seen this in the manual...

IMPORTANT: Don't change positions of weights on rear of gate. Except on 6" size, remove bolt and nut in upper part of gate if furnace or boiler is coal fired. Leave bolt alone if heating with oil. Bolt is identified by small decal with red arrow. On 6" size, follow directions on green card.
SLOW AND STEADY WINS THE RACE

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2001Sierra
Member
Posts: 1844
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 Thu. Nov. 10, 2011 12:16 am

OOPs I finally googled the type M screw removal and stand corrected. Mine will be removed tomorrow and draft rechecked. :oops: :oops:

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