Yet Another EFM520 Install Thread!

Re: Yet Another EFM520 Install Thread!

PostBy: coalkirk On: Sat Mar 04, 2017 9:00 pm

Rob R. wrote:
coalkirk wrote:I've had no out fires or draft issues during the warm days. This morning it was 14 degrees. Went down to check the boiler. It was just SITTING there, not even running. This is going to take some getting used to.


EFM uses very realistic (conservative) BTU ratings for their equipment. Unlike some other stoker boilers that are rated based on some sort of mystery number, or on input BTU's rather than net output.

EFM says on 4 teeth that unit puts out 75,000 BTU's per hour. How does that compare to the Harman? 8-)


Four teeth sure seems like a lot more than 75,000 btu's. I would guess more like 125,000 BTU's I haven't moved off of 4&4. I am so glad I found this boiler.
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coalkirk
 
Stoker Coal Boiler: 1981 EFM DF520
Coal Size/Type: anthracite/rice coal

Visit Leisure Line

Re: Yet Another EFM520 Install Thread!

PostBy: StokerDon On: Sat Mar 04, 2017 9:55 pm

So much for the nice shinny paint inside!

Sounds like it's doing it's job better than expected!

-Don
StokerDon
 
Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Yet Another EFM520 Install Thread!

PostBy: CoalHeat On: Sat Mar 04, 2017 10:23 pm

I'm glad you did too!
I'm running 4 teeth feed and around 5 or 5.5 on the air.
Quite amazing machines.
CoalHeat
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: Yet Another EFM520 Install Thread!

PostBy: coalkirk On: Sat Mar 11, 2017 7:16 am

Well after running for a month I discovered last night that I've actually been running 5 teeth. It's hard to count the clicks in real time. I took a video of the gear in action with the slo-mo feature of my phone and counted the clicks. So I assume I should adjust the air up to 5 too?
coalkirk
 
Stoker Coal Boiler: 1981 EFM DF520
Coal Size/Type: anthracite/rice coal

Re: Yet Another EFM520 Install Thread!

PostBy: Rob R. On: Sat Mar 11, 2017 8:00 am

4.5

Turn up the heat, take a shower, do some laundry, etc - then take a peak at the fire. Should have 1.5-2" ash ring.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

Re: Yet Another EFM520 Install Thread!

PostBy: StokerDon On: Sat Mar 11, 2017 10:03 am

coalkirk wrote:Well after running for a month I discovered last night that I've actually been running 5 teeth. It's hard to count the clicks in real time.

I guess that explains why the ash ring was a little on the small side. It wasn't throwing any lit coal over the side so the air was close to being right. You probably need to slightly increase the air. Try 4.25 then 4.5. Put a good load on it, like Rob said and check the ash ring after a long run.

-Don
StokerDon
 
Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Yet Another EFM520 Install Thread!

PostBy: StokerDon On: Thu Mar 16, 2017 7:00 pm

Coalkirk, check your barrel!!!

You are probably using more coal now than when we fire this thing up. I filled my GJ up on Tuesday, normally it lasts about 5 days. I just took a look in the trashcan and I could see auger!

-Don
StokerDon
 
Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Yet Another EFM520 Install Thread!

PostBy: coalkirk On: Thu Mar 16, 2017 7:08 pm

Yes I'm burning more coal for sure. Also the bagged coal I'm using is a white ash coal and it seems to really chew through it. Thanks for the reminder!
These bags weren't marked so I don't know whose coal it is but there is a *censored* load of ash with it too.
coalkirk
 
Stoker Coal Boiler: 1981 EFM DF520
Coal Size/Type: anthracite/rice coal

Visit Leisure Line

Re: Yet Another EFM520 Install Thread!

PostBy: coalkirk On: Wed Mar 22, 2017 8:23 am

My EFM520 is on its last 55 gallon drum of coal for this heating season. Will be out and shutting down within a couple days and switching to oil. Next project is to repeal and replace 8-) my coal bin. It will be larger (7x7) and have two sloped walls to the auger. It will allow coal to fall to the middle of the bin but when it gets low will require some raking toward the auger. I'm only using 2 sloped walls this time. Depending on how it works out, I may add sloped walls on the other sides next time. Per my calculations even with the sloped sides the bin will end up holding more coal than my present one.
coalkirk
 
Stoker Coal Boiler: 1981 EFM DF520
Coal Size/Type: anthracite/rice coal