Idling 520

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: 206
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 Sun. Nov. 27, 2011 1:03 pm

Can the 520 keep a fire going with proper draft controls with no other calls for heat other than a 2.5 minute timer run every hour, 4 fuel and 4 air ratio? I need to conserve coal until a I build a proper bin as it is being used in a out building.There will be a gravity flow 42k propeller unit heate being used with gravity flow onlyl to a floor above.

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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 Sun. Nov. 27, 2011 4:51 pm

If all your settings are correct, you can idle it forever, but you'll have to find those settings. But they are so easy to start up, why idle it?
‹(•¿•)›

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franpipeman
Member
Posts: 206
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 Sun. Nov. 27, 2011 7:32 pm

It is in a out building that it is heating just idling, I have to do underground piping, 80ktuh of heat exhange equipment of main buiding all the piping and a sloped 0 dead space coal bin to boot.....................i hope I have enough time in my life

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franpipeman
Member
Posts: 206
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 Sun. Nov. 27, 2011 7:33 pm

I can dile it forever at 2.5 ninutes per hour?????

Visit Alternate Heating Sytems

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Rob R.
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Posts: 11363
Joined: Fri. Dec. 28, 2007 4:26 pm
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Sun. Nov. 27, 2011 7:42 pm

My 520 will run until it runs out of coal at those settings. Actually, I only run the timer for 1 minute every half hour in this weather, in the summer I run 2-2.5 minutes every half hour.

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franpipeman
Member
Posts: 206
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 Sun. Nov. 27, 2011 9:17 pm

thank you .......... that is the empirical data im looking for . do you extract any heat from the boiler as I am doing via gravity flow to a propeller unit heater?

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Rob R.
Site Moderator
Posts: 11363
Joined: Fri. Dec. 28, 2007 4:26 pm
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Sun. Nov. 27, 2011 9:23 pm

I have no dump zone or intentional heat loss.

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