EFM 520 Dual Fuel Plugged Oil Nozzle.

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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CER
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Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Post Wed. Feb. 25, 2009 7:22 pm

I have an EFM 520 dual fuel boiler and attempted to switch over to oil from coal. It looks as if the the nozzle is plugged. Anyone have a photos, drawing, or directions to removing the nozzle and the best means of cleaning it ???CER

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stoker-man
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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. Feb. 25, 2009 8:05 pm

The nozzle should be replaced. Don't overtighten it when re-installing. The oil burner should be used at least once a month to keep the fuel in the nozzle tube fresh. Run it for a few minutes each month.
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CER
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Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Post Wed. Feb. 25, 2009 9:06 pm

Thanks for the info, had hoped I'd be able to just clean it, but.. Oh well.. I'm all new to this stoker/boiler stuff and trying to catch up with the learning curve. Any idea on the cost of a new nozzle assembly ??

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whistlenut
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Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ & V-Wert
Hand Fed Coal Boiler: Franks,Itasca 415,Jensen, NYer 130,Van Wert
Hot Air Coal Stoker Furnace: Alaska, EFM, Keystoker, Yellow Flame
Hot Air Coal Stoker Stove: Alaska, Keystoker-2,Leisure Line
Hand Fed Coal Stove: Alaska, Gibraltar, Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Ford, Jensen, NYer, Van Wert,
Baseburners & Antiques: Glenwoods
Coal Size/Type: Barley, Buck, Rice ,Nut, Stove
Other Heating: Oil HWBB
Location: Central NH, Concord area

Post Wed. Feb. 25, 2009 10:13 pm

Less than 5 bucks for a nozzle retail. Note the size and spray pattern when you go shopping, or just take the old one with you.
If you haven't changed the filter lately, they are another 5 spot. They (nozzles) don't clean well, and are so cheap, it's easier to replace them. Might want to buy a spare to have on hand.

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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 Thu. Feb. 26, 2009 5:07 am

The nozzle is a 1.50 80 degree hollow. The tube should be OK or can be cleaned while leaving it in place. Finger tighten the nozzle and then just a bit more with the wrench.
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Freddy
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Stoker Coal Boiler: Axeman Anderson 130 (pea)
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Coal Size/Type: Pea size, Superior, deep mined
Location: Orrington, Maine

Post Thu. Feb. 26, 2009 5:46 am

Nozzle wrench:

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Orrington, Maine
Fred

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CER
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Joined: Wed. Feb. 25, 2009 7:12 pm
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Post Thu. Feb. 26, 2009 9:22 am

Thanks again for the info. You folks are great. I'm sure I'll have some more questions as I go along..

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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 Thu. Feb. 26, 2009 11:39 am

Yeah, that too. Be careful when inserting it, not to get the electrodes out of whack.
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