85R

85R

PostBy: Pacowy On: Mon Nov 29, 2010 2:04 am

Earlier this year we stumbled upon an opportunity to buy a local historic home that had fallen into neglect and foreclosure. Basically, as I understand it, neither of the two previous owners had run the central heat, a 2-pipe steam system powered by a 7-section Smith-Mills 350, which is backed up by an older Smith-Mills 44. Both boilers were equipped with natural gas burners, but a combination of neglected drainage and frozen pipes had produced a flood of major proportions that trashed the burners.

We figured that we needed cheap btu's - and a lot of them - if we were to be able to make this work. With a bit of searching, I located a refurbed EFM 85R retrofit stoker that seemed like a good match for the 350. (The "85" refers to the capacity of the unit in pounds of coal per hour.)

While I had heard of these things and seen some literature on them, I was a little overwhelmed the first time I saw it. The stoker unit alone is 8 feet long, and weighs about the same as an entire EFM 520 stoker boiler (over 1100 lb.). The burn pot is 26" in diameter, and this one came with a universal bin feed auger and ash removal.

I'm happy to report that, with a minimum of busted knuckles, the unit is now in service, and we plan to move in on Monday. Thought you might enjoy these pics.

Mike
85R 4.jpg
Gravity helped, but positioning this thing in the basement took some time.
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85R 5.jpg
With the front plates off the 350 receives the burner end.
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85R 6.jpg
Close-up of chamber (sorry, no burn pot pic, but take my word that it's big).
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85R 1.jpg
All put together.
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85R 3.jpg
Bin auger feeds from 4' high, 4' dia barrel that holds about 2500 lb of coal.
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85R 2.jpg
As Glenn Frey (?) once said, "The Heat is On".
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Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: cArNaGe On: Mon Nov 29, 2010 2:20 am

Thats a big un!

Got any larger pictures?
cArNaGe
 

Re: 85R

PostBy: Pacowy On: Mon Nov 29, 2010 2:43 am

The email from the phone that took the pics contains a small jpg and a bigger htm image, but the forum doesn't seem to take htm's. I'll try to come up with something better (may take a little time - we're in the middle of moving).

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Visit Lehigh Anthracite

Re: 85R

PostBy: Wood'nCoal On: Mon Nov 29, 2010 8:24 am

When you have time please post some larger pictures, what a find!
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: 85R

PostBy: whistlenut On: Mon Nov 29, 2010 8:36 am

Isn't that about ONE MILLION BTU's? It isn't an job for a 'small' stoker. Lots of square feet to warm up and keep warm.
Remember, it's not a job, it's an ADVENTURE! (acknowledging all you current and ex-navy guys, too)
60 lbs a hour....Do you have a rail spur design ready for implementation? 100 ton loads would be great. Get a skid steer in the basement to play with....and a Vactor Truck to do the ashes.....
Love to see that home.....someone was very affluent, and it is nice to preserve that part of history.
The 85R will 'set off the satellites', they will think some "Thermal Event" is in progress!!! Just send them off to 'Alice's Restaurant' for a 'Sit long, talk much' session.
The pics can wait, but the 'voyeurs' on this site sure love them. Hope the move is effortless and that you can stay very comfortable in the 'new digs'.
whistlenut
 
Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ&VanWert
Hand Fed Coal Boiler: Franks Boiler,Itasca415,NYer130,Van Wert
Hot Air Coal Stoker Furnace: Yellow Flame
Hot Air Coal Stoker Stove: Alaska-4,Keystoker-2,
Hand Fed Coal Stove: Alaska,Gibraltor,Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Van Wert, NYer's, Ford,Jensen.
Coal Size/Type: Rice,Buck,Pea,Nut&Stove
Other Heating: Oil HWBB

Re: 85R

PostBy: Rob R. On: Mon Nov 29, 2010 9:08 am

That boiler is a monster...can you imagine the arms on the guys that originally screwed that steam system together? Not only were some big wrenches involved...someone was very smart to design the system to begin with. The best of the best at the time, two pipe steam.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: 85R

PostBy: Pacowy On: Wed Dec 01, 2010 1:59 am

whistlenut wrote:Isn't that about ONE MILLION BTU's? It isn't an job for a 'small' stoker. Lots of square feet to warm up and keep warm.
Remember, it's not a job, it's an ADVENTURE! (acknowledging all you current and ex-navy guys, too)
60 lbs a hour....Do you have a rail spur design ready for implementation? 100 ton loads would be great. Get a skid steer in the basement to play with....and a Vactor Truck to do the ashes.....
Love to see that home.....someone was very affluent, and it is nice to preserve that part of history.
The 85R will 'set off the satellites', they will think some "Thermal Event" is in progress!!! Just send them off to 'Alice's Restaurant' for a 'Sit long, talk much' session.
The pics can wait, but the 'voyeurs' on this site sure love them. Hope the move is effortless and that you can stay very comfortable in the 'new digs'.


Yes, running flat out it's a gross input of something like 1.1 million btus/hour. I've been running on 12 teeth, which equates to about 60 lb or 780,000 btu/hr. I've been told the Mills 350 likes to be run hard - maybe I'll crank it up a bit when the cold weather arrives.

Tomorrow I'm planning to take a measurement of actual consumption - could be scary. Local terrain for a rail spur is difficult, but I probably should be looking for someone with a dumper for a transload movement.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: Pacowy On: Wed Dec 01, 2010 2:44 am

markviii wrote:That boiler is a monster...can you imagine the arms on the guys that originally screwed that steam system together? Not only were some big wrenches involved...someone was very smart to design the system to begin with. The best of the best at the time, two pipe steam.


Little did those guys know that their creation would fall into the hands of a Girlie Man. :funny:

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: Pacowy On: Tue Oct 11, 2011 9:52 am

When the Coal Pile Manager let the auger become exposed so the fire went out :oops: I decided it would be a good time to attempt a thorough cleaning. This also provided an opportunity to (re-)install the original fire/viewing door, which I found had thoughtfully been saved by previous owners. Either that or it was too heavy so they thought it was easier to leave it in the basement. In either case, this provided an opportunity for a few more pics.

Mike
Door.JPG
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Mr. Mills gets his door back.
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Pot.JPG
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This provides a view of the 26" burn pot missing from the earlier pics.
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Warm-up.JPG
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Also provides a view of the fire starting to build back up after restart.
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Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: EarthWindandFire On: Tue Oct 11, 2011 10:38 am

I am absolutely dumbfounded by the size of that unit. :shock:

The other day I saw someone selling a 500k Coal Gun on craigslist and thought that was a big boiler. Not compared to this!
EarthWindandFire
 
Hot Air Coal Stoker Furnace: Leisure Line Lil' Heater.
Hand Fed Coal Stove: Hitzer model 75.
Other Heating: Oil and Natural Gas.

Re: 85R

PostBy: Townsend On: Tue Oct 11, 2011 12:21 pm

Great job Mike, nice find and love what you've done to it.

Steve
Townsend
 
Stoker Coal Boiler: Axeman Anderson 260
Coal Size/Type: Pea / Buck

Re: 85R

PostBy: Pacowy On: Tue Oct 11, 2011 1:18 pm

EarthWindandFire wrote:I am absolutely dumbfounded by the size of that unit. :shock:

The other day I saw someone selling a 500k Coal Gun on craigslist and thought that was a big boiler. Not compared to this!


I had a similar reaction the first time I saw it. After a while you get used to it; it's even sort of "user-friendly" in some respects, particularly clean-out access. And if it has run at any time in the last 72 hours, you won't be cold while you're working on it!

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: Pacowy On: Tue Oct 11, 2011 1:31 pm

Townsend wrote:Great job Mike, nice find and love what you've done to it.

Steve


Steve -

Thanks very much for your kind words. It fit our needs nicely, and I'm not sure what we would have done without it.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: 85R

PostBy: steamup On: Tue Oct 11, 2011 6:06 pm

Holy cow! A mills boiler in a house? More like historic MANSION! I've done schools with smaller boilers. That 85R stoker won't begin to tax the capacity of that boiler. You could burn a ton a day of coal with that stoker! Keep the shovel handy. Cancel the gym membership. You will get a workout shovelling coal and hauling ash.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice

Re: 85R

PostBy: Pacowy On: Tue Oct 11, 2011 7:15 pm

Yes, the nameplate says the capacity of the 350 is more like 1.4M btu/hr, so we could really open up the 85R if needed. We're running at about 60 lb/hr, and with that we fill all the radiators with steam and build a small positive pressure but rarely hit the high pressure cutoff. When it hit -20 deg F last winter the stoker ran for about 14 hours/day, so that's about 840 lb - not a ton, but still a workout!

Trying to improve coal and ash handling logistics this year. Aiming to bring the coal to the bin in 55 gallon drums if I can find a reasonable way to dump them into the bin. Suggestions always welcome!

Thanks.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Visit Lehigh Anthracite