Fire Keeps Going Out

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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Dakotaguy
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Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Sat. Jun. 17, 2017 8:34 pm

Hello all i have a EFM high boy that works great but every time it's hot and humid or just humid out I come home to no fird and a ash pit full of unburnt coal any suggestions will help I'm about ready to rip it out and put a Df 520 in was out three times this week including today again

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StokerDon
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Posts: 3252
Joined: Mon. Nov. 11, 2013 11:17 am
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
Location: PA, Southern York County!

Post Sat. Jun. 17, 2017 8:55 pm

Calm down, let's not do anything hasty. I don't think installing a DF520 will help your situation, the Hi Boy is a better boiler, the stoker is basically the same.

Do you have a draft gauge and what are your aquastat and timer settings?

Most likely, you are loosing your draft in the hot humid weather. This can be compounded by having no heat load causing skipped timer cycles due to boiler temp at the high limit.

If you spread your HI and LO limit, say, LO = 140 and Hi = 180, you can decrease the chance of missing timer cycles. Run at least 2 minutes every 30 minutes on the timer.

-Don
There are few problems in life that cannot be solved by lighting something on fire.

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Dakotaguy
Member
Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Sat. Jun. 17, 2017 9:08 pm

My limits on triple aquastat are 190 175 with a the differential at 15 manometer at 2 feed at 4 air at just under 5 we were home all day wife did lots of laundry making it run went out for dinner came home to no fire

Visit Alternate Heating Sytems

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Dakotaguy
Member
Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Sat. Jun. 17, 2017 9:14 pm

Thanks stoker don my timer settings are 1 minute every half hour

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StokerDon
Site Moderator
Posts: 3252
Joined: Mon. Nov. 11, 2013 11:17 am
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
Location: PA, Southern York County!

Post Sun. Jun. 18, 2017 6:54 am

If you still have problems, I would back the LO limit down to 150 or 160. I would also back the air down between 4 and 4.5.

-Don
There are few problems in life that cannot be solved by lighting something on fire.

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Rob R.
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Posts: 11343
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 Sun. Jun. 18, 2017 7:32 am

I am surprised you are not having more issues. Your aquastat settings are too close to one another, the feed is too low, and the timer setting is too short.

Set the stoker at 4 teeth and 4.5 air. Adjust the rest as follows:

160 low
200 High
10 diff.

2 minutes every half hour on the timer.

Visit Alternate Heating Sytems

User avatar
Dakotaguy
Member
Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Sun. Jun. 18, 2017 12:52 pm

Thanks Rob R and Stoker Don have it set as Rob and Don said we will see if it's lit when we get home tonight hopefully it's ok

User avatar
Dakotaguy
Member
Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Mon. Jun. 19, 2017 7:48 pm

So far so good the efm stayed lit since Saturday evening thanks for the advice

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Rob R.
Site Moderator
Posts: 11343
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 Mon. Jun. 19, 2017 8:08 pm

You're welcome.

A spring cleaning (boiler and smoke pipe) also helps with running through the summer.

User avatar
Dakotaguy
Member
Posts: 51
Joined: Sun. Nov. 15, 2015 8:33 pm
Stoker Coal Boiler: Efm 520 highboy
Coal Size/Type: Lots of rice from Lehigh
Other Heating: Pops 2010 df 520 stoker
Location: Summit hill pa
Contact:

Post Mon. Jun. 19, 2017 9:41 pm

Thanks I did that Saturday before I built a fire wasn't to dirty one ash can of dirt usually get two it needed to be done nothing like cleaning your boiler at. 11 pm on a Saturday night thanks again for the advice

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