THESE EFM COAL BURNERS SOUND GREAT

THESE EFM COAL BURNERS SOUND GREAT

PostBy: QUESTMAN On: Mon Feb 25, 2008 9:14 pm

HOW GOOD ARE THESE UNITS?? They sound like a great alternative to wood,oil, etc.
QUESTMAN
 
Stove/Furnace Make: NA
Stove/Furnace Model: NA

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: ted On: Mon Feb 25, 2008 9:21 pm

i think that my used efm 520 was one of the best things that i have done in our home, we went from a hand fed coal wood boiler that was always needing to be restarted to our efm 520 that is always burning and keeping house warm... just keep the feed barrel full of coal and dump the ashes havent been this comfortable in this house over last 18 years as we have been since we lit efm 520 in november
our boiler was a used unit 1966 vintage
Ted
ted
 
Stove/Furnace Make: efm new /foxfire HAND FEED old
Stove/Furnace Model: 520 BOILER

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: e.alleg On: Mon Feb 25, 2008 10:46 pm

I bought mine used last year, I lit it in October and it hasn't gone out since. Plenty of heat and the thing is easy to maintain and repair if ever needed, the parts are all heavy duty and the stoker is very simple in operation. It is by far the best thing I have bought for the house, and the best part is that it has almost paid for itself already in propane savings, for certain it will be earning money come next winter.
e.alleg
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoker-man On: Mon Feb 25, 2008 10:49 pm

They have been in production since 1951 and many are still in use from the '50s. The serial numbers are up to 99,1400+ and almost all parts are interchangeable no matter when it was made.
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: THESE EFM COAL BURNERS SOUND GREAT

PostBy: e.alleg On: Mon Feb 25, 2008 10:50 pm

is there a prize for whoever orders the 100,000th boiler?
e.alleg
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: Scottscoaled On: Tue Feb 26, 2008 12:11 am

Shssssssssss.Everyone will want one. ;) Scott
Scottscoaled
 
Stoker Coal Boiler: EFM 520x4, 700. Van Wert 1200.
Hot Air Coal Stoker Furnace: EFM 150, Keystoker 150
Coal Size/Type: Lots of buck

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoker-man On: Tue Feb 26, 2008 6:37 am

Maybe we'll have a contest and give it away !
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: THESE EFM COAL BURNERS SOUND GREAT

PostBy: Bob On: Tue Feb 26, 2008 11:53 am

While I ultimately decided to buy an AHS unit I have nothing but the highest regard for the EFM units. I know several people who have them and have had an excellent experience.
Bob
 
Stoker Coal Boiler: AHS 130
Coal Size/Type: Pea/Anthracite

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: coal berner On: Tue Feb 26, 2008 1:33 pm

Hey stoke man May be you can answer this Question when figuring out the specs on the 520 What is the B.T.U value that They are using for the coal per lb bTU's Because when looking in the manual under Specification Output Per Hr.
Gross Output is 214.690 BTUH At 25lb Per Hr with a 10 Teeth feed Setting Net Output BTUH is 186.690 BTUH When you do the math Just Taking The Coal at 25 lbs Per Hr With the coal burning at 13.500 BTU's Per lb That would be 337.500 BTUH so there is like a 122.810 BTUH loss with the 520 what i am I missing in you specs Other then Heat loss in the water & chimney Just wondering what BTU's They are using for coal Per lb With these Numbers you are looking at like a 60% efficient rating :?: what I am I missing here :? Thanks
coal berner
 
Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: e.alleg On: Tue Feb 26, 2008 2:34 pm

I wondered the same thing, all I can figure is that a pound of coal contains 30% fines, dirt, water, rocks.
e.alleg
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: coaledsweat On: Tue Feb 26, 2008 2:55 pm

This is for steam, but it will give you an idea of what they are doing to get those numbers.

http://www.energysolutionscenter.org/boilerburner/Eff_Improve/Efficiency/Index_Boiler_Efficiency.asp
This link is broken, either the page no longer exists or there is some other issue like a typo.


An EFM 520 should run in the 80-85% range.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoakerdude On: Sat Mar 01, 2008 9:57 pm

My sump pump failed while i was away and when I returned the basament was flooded! Pumped about 3 feet of water out of basement!! The efm stoaker was totally covered by water. When I went down to the basement to assess the damage I heard the stoaker running!!!!Naturally the fire was out so I shut the unit down and drained the water out of the motor,Put fresh oil in the top gear oiler and fired it up.That was 3 weeks ago and it just keeps chugging away.I think these efm stoakers are indestructable.This stoaker is close to 40 years old and I don't think it is ever going to wear out but if it does I will buy another one. Stoakerdude
stoakerdude
 
Stove/Furnace Make: efm
Stove/Furnace Model: 250

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoker-man On: Sat Mar 01, 2008 11:42 pm

You can install an L6006 aquastat and the stoker won't run if the fire goes out. This prevents you from coming home to an ash can full of good 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: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoakerdude On: Sun Mar 02, 2008 1:58 pm

Thanks for the tip on the aquastat.I have filled up the ash bin with coal several times over the years. If I use the l6006 aquastat will I still have to use the timer to keep the fire going on warm days? Stoakerdude
stoakerdude
 
Stove/Furnace Make: efm
Stove/Furnace Model: 250

Re: THESE EFM COAL BURNERS SOUND GREAT

PostBy: stoker-man On: Sun Mar 02, 2008 2:18 pm

Yes. The 6006 only senses the out-fire and prevents the stoker motor from starting.
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