EFM 520 Parts

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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jack j
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Posts: 6
Joined: Wed. Nov. 16, 2011 7:43 am
Stove/Furnace Make: warm morning 460b
Location: poconos pa

Post Tue. Dec. 13, 2011 7:04 am

My freind has a EFM 520 we put it in 20 years ago . I built a new bas for it 3 years ago . We need help and parts . The auger snaps in different places . (1) where can I get an auger (2) what can cause it to snap . I have repaired ir several times .

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CoalHeat
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Posts: 8327
Joined: Sat. Feb. 10, 2007 9:48 pm
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Tue. Dec. 13, 2011 8:30 am

Give this guy a call, he'll have what you need:

Steve Wilhelm Furnace 270 Tremont Rd. Pine Grove 17963 (570) 527-0992
Heating a circa 1832 farmhouse with a Harman Magnafire Mark I & a 1959 EFM 350 (heating DHW).
100% Oil Free!
"It's what we learn after we think we know it all that counts."

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Rob R.
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Posts: 11344
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 Tue. Dec. 13, 2011 8:42 am

jack j wrote:(2) what can cause it to snap .
Shale or oversize coal combined with the wrong shear pin in the drive mechanism.

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jack j
New Member
Posts: 6
Joined: Wed. Nov. 16, 2011 7:43 am
Stove/Furnace Make: warm morning 460b
Location: poconos pa

Post Tue. Dec. 13, 2011 12:22 pm

Thanks but it ran for years with the same rice coal and shear pin now he has 1 shear pin left. any other reason ? Its un pridictable it will run months with out breaking than bam . I have welded it together maney times and I am a pro welder for 45 years . It doesn't break in the same spot.

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Rob R.
Site Moderator
Posts: 11344
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 Tue. Dec. 13, 2011 12:58 pm

Worn auger flights, worn gooseneck bushing, worn worm bushing...all of these can lead to grinding coal and sheared pins. The shear pin should always break before the auger, something isn't right.

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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. Dec. 13, 2011 9:05 pm

Do you use two pipes with a coupling in between? If so, check inside the coupling for a rusted-through pipe or any gap between the two pipes where they butt. Otherwise, check the things mentioned in this posting.

Reasons for the Pin Shearing on EFM Drive Mechanisms
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