The efm WCB-24 hand fired wood/coal boiler

Re: The Re-introduction of the efm WCB-24

PostBy: FCAvery On: Tue Aug 05, 2008 1:09 pm

I have a WCB-24, 1988 vintage. I was heating my entire house (2400 square ft) with the unit and doing domestic hot water. I took the unit out of operation in 1990 and installed an oil-fired boiler, because I was travelling 2 1/2 hours round-trip to work and could not keep the fire going. However, since I'm now retired and the price of oil has gone ballistic, I've reinstalled the WCB-24. I've hooked it in parallel with the oil-fired boiler and have it connected to 2 zones (Each with its own circulator). One zone will circulate water between the 2 boilers and 2nd zone is hooked up to a 36 Gallon Indirect fired water heater. I've used wood and coal with this unit. Coal, of course, allows you to go longer between fill-ups. I've had some problems with the grates warping (probably because I was over firing the unit). I have replacement grates and firebrick. I want to rebuild the unit. However, I'm having problems with getting instructions on installation of the firebrick. I've called EFM to get some support on these instructions, they take my phone number and never call back. Any suggestions??
FCAvery
 
Hand Fed Coal Boiler: EFM, WCB-24, Circulator, 80,000
Hand Fed Coal Stove: DS Machine

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Tue Aug 05, 2008 3:48 pm

I'm there all day. You have to call and ask for stokerman. Accept no substitutes ! :)
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: EasySteaminBT On: Tue Aug 05, 2008 11:52 pm

Hi,

Does the boiler come in steam trim? Will you offer a boiler with a higher BTU output in the future. Is the 100K Btu/HR the gross or net number? Would you be able to customize the boiler to accept a Riello Nat gas burner along with an increase in output? Just some questions, hope you can help. Thanks
EasySteaminBT
 
Stove/Furnace Make: Move the hell over gas boiler
Stove/Furnace Model: Axeman Anderson 260M

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Wed Aug 06, 2008 6:01 am

The 100K gross output is conservative. I'm heating 2200 sq. ft to 70-75 degrees, plus domestic hot water, in PA with pallet wood and I have the 30-year-old 60K boiler. There is no burner package for this unit; also no steam.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: davelikesbeer On: Wed Aug 13, 2008 11:20 pm

Hi, I am very interested in getting one of these. Even willing to send down payment. Please feel free to cantact me through PM, or send me a phone number, or email. Thanks, DAVE
davelikesbeer
 
Stove/Furnace Make: Russo
Stove/Furnace Model: 1900 C

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Thu Aug 14, 2008 5:14 am

For BT, there is no steam package on this.

Dave, the prototype is being built now and I suppose ready for testing in a week or two. If all goes well, they should be ready by Fall.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

The prototype was tested yesterday

PostBy: stoker-man On: Thu Aug 21, 2008 5:53 pm

We did the initial firing yesterday with wood. I loaded the firebox with about 1/2 of a 5 gallon bucket's worth of wood. The boiler was filled with house water, about 70 degrees and after about 15-20 minutes, the boiler water was up to about 210 degrees. By then the wood was a pile of orange embers and a good lunch became the focal point. The burn test went as we expected it to go, with minimal smoke. The final two pictures were taken with the unit burning wood. I'm going to experiment with some PA soft coal and see how it would work. A few little tweaks here and there will be incorporated into the second prototype.

All the people involved in the project deserve credit for dealing with old blueprints and some very unclear parts of the design. It will take another 6-8 weeks to get a vital iron casting made for the unit, but production should still be this Fall.
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Attachments
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REAR VIEW
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COMBUSTION CHAMBER
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ASH AREA AND GRATES
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UNIT BEING TEST FIRED
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stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: thetaspica On: Fri Aug 29, 2008 10:45 pm

What size coal will work best in the WCB-24?
thetaspica
 

Re: The Re-introduction of the efm WCB-24

PostBy: Richard S. On: Fri Aug 29, 2008 11:15 pm

Probably anything larger than pea, I had a lot of older customers with old coal boilers similar to this. The majority if them used nut, followed by range which is a pea and nut mix and lastly straight pea. The "best" is probably contingent on your needs. I had one customer that would get about 4 tons of nut in one side o the bin and 2 pea in the other. He didn't want them mixed. I had other that would request more or less of one size in the range too...

Overall range is proabably your best choice. I've had many customers that have used all three options and most stuck with range once they used that.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Sat Aug 30, 2008 6:55 am

Nut coal
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: thetaspica On: Sat Aug 30, 2008 9:54 am

stoker man,
EFM told me rice. I am not sure rice is right because of the grate size and lack of blower. Thanks.
thetaspica
 

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Sat Aug 30, 2008 10:34 am

I have an idea who said rice, but no, chestnut coal is used. For coal related questions, ask for me and if I don't know, I'll ask Jim.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: thetaspica On: Sat Aug 30, 2008 10:52 am

Stoker-man,
Are you at the Emmaus facility? That is where I visited, called and got my information. Thanks.
thetaspica
 

Re: The Re-introduction of the efm WCB-24

PostBy: stoker-man On: Sat Aug 30, 2008 11:12 pm

Usually. Sometimes, rarely, I visit the other plants.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: The Re-introduction of the efm WCB-24

PostBy: thetaspica On: Fri Sep 05, 2008 8:11 pm

Stokerman,
Wow, what an interesting phone call I had today. I'm glad to know that I still have a good chance of getting my hands on a WCB-24 before the snow flies. Now, what to do with the 6 tons of rice in my coal bin.
thetaspica