Annual Maintenance and Cleaning of the DF520 Boiler

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: Rob R. On: Sat Jan 19, 2013 4:53 pm

This is the motor that I bought and put on my EFM:

http://www.marathon-motors.com/4782-5KH ... m-4782.htm

Note that the picture on the website is not correct, the motor has a closed face like coal berner mentioned.
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: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: elindable On: Tue Dec 31, 2013 12:56 pm

Are the baffles too heavy to remove with one hand. It might be a challenge for me to get in there with 2 hands from the fire door. Am I missing something or is there a preffered method to removing the baffles?
Thanks.
elindable
 
Stoker Coal Boiler: EFM DF520-S20 Serial 91676
Coal Size/Type: Rice
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: vermontday On: Wed Jan 01, 2014 7:36 pm

The steel baffles are just light enough to handle with one hand.

However, they can be very difficult to get off the hooks. EFM uses large diameter rod for the hooks (don't know why) that on my new boiler were slightly off angled. This resulted in having to use a crowbar to get them off. The vertical section of the hook is also longer than it needs to be, again making it difficult to remove the baffles.

I corrected this by cutting off the excess vertical hook section (see attached picture) with an angle grinder. Be sure to wear good eye protection when doing this, it gets pretty cozy in there.

I also welded a bolt on each one as a handle. If I had it do over again, I would weld the handle higher up on the baffle for better balance.

It is now easy to get the baffles off the hooks.
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vermontday
 
Stoker Coal Boiler: EFM 520

Re: Annual Maintenance and Cleaning of the DF520 Boilerfor the r

PostBy: elindable On: Wed Jan 01, 2014 8:34 pm

Thank you for the reply.
I like how you use those giant bags as the hopper. Fantastic idea.
Thanks again.
elindable
 
Stoker Coal Boiler: EFM DF520-S20 Serial 91676
Coal Size/Type: Rice
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: vermontday On: Wed Jan 01, 2014 8:41 pm

Below are some pictures of how much moisture a boiler can pick up inside during a few weeks in a humid summer like last year.

Although I prefer running the EFM through the summer for domestic hot water, I was worried about my oil burner oil setting up in the gun or the oil going bad in the tank, (having not burned a drop in over a year and 1/2), so I ran the oil burner for DHW.

Upon shutting down the EFM, I cleaned it, put a 100 watt light in through the exhaust breech hole, covered the breach hole with foil, stuffed rags in the combustion blower input and even put a piece of tape over the front door flame inspection hole.

I also hung a note on the power switch to remember to take the rags out, for the old geezer (me) that can't remember what he did yesterday!

I also put a large pail of "Damprid" moisture absorbent into the fire box. You can buy it at Home Depot.

When I took the "Damprid" bucket out and set it on my picnic table, it was 1/3 full of water. Again, water and coal ash make a perfect recipe for corrosion, so I am glad I took the extra steps.
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Tape sealing peep hole.
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Rags blocking combustion blower input.
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Damprid bucket on burn pot.
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Taking Damprid bucket out.
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Damprid bucket 1/3 full of collected water.
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vermontday
 
Stoker Coal Boiler: EFM 520

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: McGiever On: Wed Jan 01, 2014 10:29 pm

Check this out, at only 13 watts it works for pennies a day.

It's not just about some heat, this does cause a gentle circulation of the air within which some other items can't do. :)

use for Stove Dehumidfier
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: SMITTY On: Wed Jan 01, 2014 10:40 pm

I'd need a 6 gallon bucket of Damprid just for my Mark III in this place ... :lol:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: daluds On: Sun Jan 05, 2014 7:55 pm

Nice summary with details. Thanks.
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Annual Maintenance and Cleaning of the DF520 Boiler

PostBy: elindable On: Sun Oct 12, 2014 2:26 pm

I have the older gear box. Where can I find 20w machine oil? Is there something equivalent I can purchase retail.
Thank you
elindable
 
Stoker Coal Boiler: EFM DF520-S20 Serial 91676
Coal Size/Type: Rice
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520