Rebuilding EFM DF-520 Project, Parts Only

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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gwjwbw
Member
Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Thu. Feb. 10, 2011 2:30 pm

I made my shopping list today and sure it a long list.
Any of you guys that are EFM dealers, rep or sell these parts.
Please Pm for prices
To make sure of which boiler I have, here the number
DF-520
net rating 149000 btu
valve capacity 400 lb per hour
date of MFG 4-87
guess that it
Let me know if you need any more info

Burner worm bushing 9433986
groove pin 82808
gooseneck bushing
shear pin 35656
clutch shaft coupling 9433753
cotter pins 82711 (3 1/16x1 1/2
rope gasket 9435999 (in the gooseneck machining)
air chamber rope gasket 9435770
Damper plate 9431728
Damper plate retaining screw 81004
burner plate rope gasket 9435683
complet burner plate set 9436232K (need 6)
1/4x20x1 1/4 machin screws (6)
rope gasket for bin feed tube collar (underneather bin side plate)
burner worm 9441326
burner end pipe 9434748
7 gpm coil and gasket kit 9552312K

gwjwbw
Member
Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Sat. Feb. 26, 2011 12:08 pm

looking for price on the controls now
L8124A Aquastat relay
L6006A Aquastat
Will-Burt Timer 20350
Thank, Gerard

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AA130FIREMAN
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Posts: 1951
Joined: Sat. Feb. 28, 2009 4:13 pm
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube

Post Sat. Feb. 26, 2011 12:13 pm

gwjwbw wrote:looking for price on the controls now
L8124A Aquastat relay
L6006A Aquastat
Will-Burt Timer 20350
Thank, Gerard
Take a look on ebay, some new some used. Online their is simplyplumbing.com and pexsupply.com. The home improvement box stores cary some aquastats also.

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stoker-man
Verified Business Rep.
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 Sat. Feb. 26, 2011 12:41 pm

Some of the aquastats are rebuilt, not new. Check the description carefully.
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gwjwbw
Member
Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Sun. Feb. 27, 2011 8:45 am

After checking out on ebay, I see some more number after the part number I want, now, what do I really want?
It like I need the 2nd part of the part number and I don't see that on EFM site.
Thank for your help
Gerard

gwjwbw
Member
Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Fri. Mar. 04, 2011 6:15 pm

Honeywell L8124B1039

can I use this aquastat relay instead of L8124A?
Thank, Gerard

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stoker-man
Verified Business Rep.
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 Fri. Mar. 04, 2011 10:14 pm

No, it cannot be a B
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stoker-man
Verified Business Rep.
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 Sat. Mar. 05, 2011 6:59 am

It's possible you can't buy a new 8124A anymore. I think they stopped making them a couple years ago and the only ones for sale are those who stockpiled them or rebuilt them. They were replaced by the 7224A electronic aquastat.

We had alot of returns of the new aquastat compared to almost none of the old model. The even older 8124s with the red circuit board would last for decades. The newer green board 8124s would suffer from broken solder joints which some people would reheat and save the unit. Generally return rates were low.

I think there is a learning curve with the newer 7224s and dealers would just replace them because they didn't know how to use them, so maybe they don't deserve the bad rap. But finding a new 8124A is getting harder by the day. efm was still able to get them new and may have some in stock.
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Fran654
Member
Posts: 134
Joined: Tue. Apr. 01, 2008 7:59 pm
Stove/Furnace Make: US Stove
Stove/Furnace Model: 6100M

Post Sat. Mar. 05, 2011 8:14 am

hi ,gerard check your pm,

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Rob R.
Site Moderator
Posts: 11350
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 Sat. Mar. 05, 2011 8:19 am

I installed a 7224A on my Dad's 520, it works excellent. If you are buying new, take a look at a Hydrostat 3150 combination low water cutoff & aquastat.

gwjwbw
Member
Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Sat. Mar. 05, 2011 5:30 pm

here on ebay, I found this that replace the L8124A
This universal controller replaces: L8124A,C.,L8148A, L7124A,C,U., L7224A,C., and 7148A
Honeywell L7224 U1002 Oil Electronic Aquastat Controller 120 Vac with Enviracom/Leds

what you guys think?

cardinal
Member
Posts: 58
Joined: Sat. Sep. 03, 2011 10:29 pm
Stoker Coal Boiler: EFM 520
Coal Size/Type: Rice
Location: CARBON COUNTY,PA.

Post Sat. Sep. 03, 2011 10:41 pm

I found a guy from pottsville has three pots for 520, anyone in need let me know I have his phone number

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