What to Look 4 in a Used Boiler???

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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Posts: 134
Joined: Tue. Apr. 01, 2008 7:59 pm
Stove/Furnace Make: US Stove
Stove/Furnace Model: 6100M

Post Sun. Jan. 24, 2010 5:21 pm

hi all, going to look at a EFM 520, used, problem is what do I look for,as far as the bad things ,or worn places ??? thank you , Tommy I don't want to pay to much ,if it needs to be rebuilt then that needs to be factored in at bid time

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Posts: 244
Joined: Fri. Aug. 15, 2008 10:12 am
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker
Location: NEPA

Post Sun. Jan. 24, 2010 5:47 pm

Definately look at the domestic coil area for deep rust pockets around the gasket area since this is usually a trouble spot, although even if it looks bad and the price is right for the boiler there are weld on coil plates to fix this problem. As for the stoker mechanism and pot there are a few things to look for there ,but kind of hard to explain unless you know your way around them. Remember that even if there are worn out parts in the stoker mechanism and pot there are readily available for replacement.


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Posts: 1285
Joined: Fri. Feb. 16, 2007 10:31 am
Stove/Furnace Make: EFM
Stove/Furnace Model: 520
Location: western ny

Post Thu. Jan. 28, 2010 10:08 pm

Check for a rusted out base $$$$ for a new one and hard to replace once up and running.
Burning coal is definitely worth the extra work involved.
"Good enough" is not good enough.

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