Dual Fuel

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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billw
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Stove/Furnace Make: EFM 520
Stove/Furnace Model: GOODBYE OIL COMPANY
Location: Dallas, PA

Post Thu. Jan. 15, 2009 10:28 am

Is it possible to add the oil burner option to a standard 520? If it's possible I can eliminate my oil burner and about 70 feet of interconnect pipe which will make my system more efficient.

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coal berner
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Posts: 3591
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Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520
Location: Pottsville PA. Schuylkill County PA. The Hart Of Anthracite Coal Country.

Post Thu. Jan. 15, 2009 2:13 pm

billw wrote:Is it possible to add the oil burner option to a standard 520? If it's possible I can eliminate my oil burner and about 70 feet of interconnect pipe which will make my system more efficient.

It can be done but you need to know what your doing you have to cut threw both layers of bolier steel plate
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

Complete Heat
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Stove/Furnace Make: Axeman-Anderson
Stove/Furnace Model: AA-130/FHA
Location: Nashua, NH
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Post Thu. Jan. 15, 2009 2:58 pm

Bill,

I know the newer 520s come ready to accept an oil burner. There is a dual fuel kit that EFM sells, it contains a burner, insulation boards, etc to do it. You will need a cut template for the side of the jacket as well. Pretty straight forward.

Mike
Heating with coal, driving with waste vegetable oil. Screw OPEC.

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Pa Dealer
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Posts: 244
Joined: Fri. Aug. 15, 2008 10:12 am
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker
Location: NEPA

Post Thu. Jan. 15, 2009 4:09 pm

If you have a 520 round door it would be quite a challange to turn it itno a dual fuel unit. You would have to cut through the outside and inside of the boiler and weld in a rectangle sleeve that accepts the conversion package. Since the sleeve would pass through the water jacket the welds would have to be water tight. Not sure if there would be a staybolt welded in that area. Being a welder I would be up to that challange if the boiler was laying on the floor and you were able to get the right position, but doing it in place would be a bear. Might be easier to find a square door boiler and replace your round door.

R.Y

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billw
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Stove/Furnace Make: EFM 520
Stove/Furnace Model: GOODBYE OIL COMPANY
Location: Dallas, PA

Post Thu. Jan. 15, 2009 5:32 pm

Well being that I don't know how to weld doing it myself is out of the question. I would like to teach myself to weld but this isn't a project to learn on. Oh well, it was a good thought. Thanks.

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Pa Dealer
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Posts: 244
Joined: Fri. Aug. 15, 2008 10:12 am
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker
Location: NEPA

Post Thu. Jan. 15, 2009 5:46 pm

I came across a 520 round door that the guy put an oil gun in the round door. He only used it for oil burning.

RY

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Coal Guzzler
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Stove/Furnace Make: Saey Stove/EFM Boiler
Stove/Furnace Model: Hannover Stove/DF 520
Location: Glenmoore, PA

Post Mon. Jan. 19, 2009 11:25 am

I have a new DF 520 (with rebuilt stoker). I want to add an oil gun, mainly for when we travel. I see the oil gun has a BTU rating of 157,000BTU/hr. For my setup, this seems like a high rating. I was running 4 teeth and just changed to 5 with the cold spell we've experienced. Is there a chance that a lower BTU rating can be achieved with the oil gun? Is there a possibility of using my burner from my removed boiler (Bickett)? Any idea on the price of the kit?

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cArNaGe
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Post Mon. Jan. 19, 2009 11:58 am

You can change the oil gun output by changing the nozzle size. That's about all I know.

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coaledsweat
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Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea
Location: Guilford, Connecticut

Post Mon. Jan. 19, 2009 11:58 am

billw wrote:Is it possible to add the oil burner option to a standard 520? If it's possible I can eliminate my oil burner and about 70 feet of interconnect pipe which will make my system more efficient.


You are probably better off keeping your old boiler, the 70' of pipe will have little impact on overall efficiency. An oil gun in a coal boiler will not be as efficient as your current oil boiler.

Coal Guzzler wrote:Is there a chance that a lower BTU rating can be achieved with the oil gun? Is there a possibility of using my burner from my removed boiler (Bickett)? Any idea on the price of the kit?


Yes, a smaller nozzle (GPH rating) will reduce the BTU rating.
Nothing is impossible for people who don't have to do it themselves.

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coal berner
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Posts: 3591
Joined: Tue. Jan. 09, 2007 12:44 am
Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520
Location: Pottsville PA. Schuylkill County PA. The Hart Of Anthracite Coal Country.

Post Mon. Jan. 19, 2009 11:58 am

Coal Guzzler wrote:I have a new DF 520 (with rebuilt stoker). I want to add an oil gun, mainly for when we travel. I see the oil gun has a BTU rating of 157,000BTU/hr. For my setup, this seems like a high rating. I was running 4 teeth and just changed to 5 with the cold spell we've experienced. Is there a chance that a lower BTU rating can be achieved with the oil gun? Is there a possibility of using my burner from my removed boiler (Bickett)? Any idea on the price of the kit?

By changing the oil Nozzle from a 1.50 Gal Per Hour to a 1.25 or 1.30 gal per Hour you will save on fuel and reduce the BTUH. and your bickett oil gun depending on what model should fit in the collect and ring . check your PM's for more info ;)
J.C.

Heating house & water with a 1986 electric furnace man DF520 using buckwheat Anthracite coal

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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 Mon. Jan. 19, 2009 4:25 pm

You can mount any Beckett oil burner and any firing rate you choose.
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