Almost Missed the Boat.

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Dave 1234
Posts: 190
Joined: Tue. Nov. 13, 2012 9:05 am
Stoker Coal Boiler: 1948 International boiler, EFM S-20 stoker
Coal Size/Type: Buck,
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Post Sat. Aug. 10, 2013 2:24 pm

After enjoying my new 520 from early spring time I was going to shut her down and use electric for DHW this summer. Well a bunch of you, and my boiler man Dave said, "just keep burning" ! Well...........
Today was the last bit of a blue plastic 55 gal. load that has been our coal usage from July 1st .
Dave helped me with the final settings.
Feed, 3 teeth. Air, 5.5 Timer 1.5 min, 2 x per hr. Aquastat is 140 deg. And the bypass loop is full open. We have had nice, plentiful DHW all summer to date.

How did I not know about all this 30 years ago ?

Thanks to all again !


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Rob R.
Site Moderator
Posts: 11522
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. Aug. 10, 2013 2:29 pm

That is a lot of air for 3 teeth of feed. Is your coal unusually hard or slow burning? I have always gotten good results with 4 teeth and 4 air...maybe 4.5 air depending on the coal.

I am currently burning buck size coal...average 14 lbs per day to make hot water for a family of three. I enjoy just letting it run all summer and keeping the basement warm and dry. Ash tub is full every 10-12 days, easy enough to manage.

Visit Alternate Heating Sytems

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Posts: 1810
Joined: Wed. Jul. 30, 2008 8:38 pm
Stoker Coal Boiler: Binford 2000
Hot Air Coal Stoker Stove: LL Pioneer top vent
Hand Fed Coal Stove: Saey Hanover II
Baseburners & Antiques: Grander Golden Oak , Glenwood # 6
Coal Size/Type: All of them
Location: Douglassville, Pa

Post Sat. Aug. 10, 2013 3:40 pm

Too soon old, too late smart!

Posts: 282
Joined: Fri. Jun. 20, 2008 9:27 am
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Post Wed. Sep. 18, 2013 7:11 pm

I can relate to the coal being a hobby statement! Sometimes its like golf, frustrating. But does save a ton of money in heating bills.

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