Refurbishing a EFM 350

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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CoalHeat
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Posts: 8327
Joined: Sat. Feb. 10, 2007 9:48 pm
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
Location: Stillwater, New Jersey

Post Sat. Jan. 21, 2012 12:55 pm

Moved this thread to the EFM heading.

Pictures please!! We love pictures here, you know.
DSCN0924.JPG
You'll be seeing this soon!
Heating a circa 1832 farmhouse with a Harman Magnafire Mark I & a 1959 EFM 350 (heating DHW).
100% Oil Free!
"It's what we learn after we think we know it all that counts."

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AA130FIREMAN
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Posts: 1951
Joined: Sat. Feb. 28, 2009 4:13 pm
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube

Post Sat. Jan. 21, 2012 3:41 pm

Just my opinion, if you are in an area without a combustion problem, the blue tip wrench is the best to take rusted bolts apart. As long as you don't run the oxygen tank empty as mine is currently :oops:

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AA130FIREMAN
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Posts: 1951
Joined: Sat. Feb. 28, 2009 4:13 pm
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube

Post Sat. Jan. 21, 2012 3:41 pm

double post :oops:

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Townsend
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Posts: 567
Joined: Tue. Nov. 21, 2006 7:38 pm
Stoker Coal Boiler: Axeman Anderson 260
Coal Size/Type: Pea / Buck
Location: Connecticut

Post Sat. Jan. 21, 2012 4:44 pm

Well, what about some pictures?

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windago
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Posts: 97
Joined: Tue. Jan. 10, 2012 5:25 pm
Stove/Furnace Make: Harman/EFM/losch
Stove/Furnace Model: mark III/?350 round nose/ 475
Location: scranton

Post Sat. Jan. 21, 2012 4:59 pm

ive got some pictures of the nightmare that I have gotten my self in to. I have come to realize that im not doing this for money. im doing this for the learning experience. what was I thinking. :fear: im going to end up in the loony bin after this.

it looked a lot better before I started taking it apart. amazing how much rust hides. till ya hit with a hammer. :( well im going to need a new complete base there isn't anything to weld to. "haven't figured how to weld rust yet." I broke the pot getting it apart. I herd it crack from the hot wrench. this why I will never put anything together with out anti seize. your nuts if you don't use it. :mad3: I will grind it out and weld it up unless some one here says other wise. ive welded cast before in high heat environments and didn't have problems. how much does a base run for the 350. need to figure cost of welding one up, or just buy a new one.

here is the link to the pictures.
http://s1071.photobucket.com/albums/u501/windagoman/
learning from your mistakes it what makes us wise. "wise enough not to do that again"
http://s1071.photobucket.com/albums/u501/windagoman/

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AA130FIREMAN
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Posts: 1951
Joined: Sat. Feb. 28, 2009 4:13 pm
Stove/Furnace Make: axeman anderson
Stove/Furnace Model: 130 anthratube

Post Sat. Jan. 21, 2012 5:09 pm

Before you get so involved with fixing it, why not pressure test it ?

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windago
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Posts: 97
Joined: Tue. Jan. 10, 2012 5:25 pm
Stove/Furnace Make: Harman/EFM/losch
Stove/Furnace Model: mark III/?350 round nose/ 475
Location: scranton

Post Sat. Jan. 21, 2012 5:15 pm

AA130FIREMAN wrote:Before you get so involved with fixing it, why not pressure test it ?
ive got a friend picking up the fittings and tester from work that's tonight's endeavor. nobody got back to me on what to test it at? ill go for 40 to 50 psi if it holds 30 with out blowing the DHW gasket ill be happy.

oh just looked at the auger and im asking my self wheres the bushing? if I get out of this rebuild for less than a 1000 in parts. I will be lucky. not counting the base I think its going to be a weld up of the original. just beefier.

edit adding information:
well going back to it. dinners done and ive got work to do. ill catch up before I get to bed for the night.
learning from your mistakes it what makes us wise. "wise enough not to do that again"
http://s1071.photobucket.com/albums/u501/windagoman/

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Rob R.
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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 Sat. Jan. 21, 2012 5:44 pm

30 psi is minimum since that is the relief valve rating.

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crazy4coal
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Posts: 516
Joined: Wed. Feb. 13, 2008 8:29 pm
Stove/Furnace Make: buderus
Stove/Furnace Model: logana
Location: Sussex County N.J.

Post Sat. Jan. 21, 2012 5:57 pm

Fill it with water and pressure it up to 45-65 psi aand let it sit for 24 hours. DON'T use just air, if it blows with just air in it it's not gonna be a good day.
Owner of American Coal LLC. Sussex County N.J. (Bagged only)

gwjwbw
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Posts: 179
Joined: Mon. Feb. 02, 2009 4:16 pm
Stove/Furnace Make: EFM DF520
Location: Salunga,PA

Post Sat. Jan. 21, 2012 6:06 pm

I be following this post, and I been in the same boat with mine boiler. I broken off the studs for the water coil, and welded a frame in case I ever put in a new coil,
It a good learning experice for me and I believe for many other guys on this site, plus I got the help from them.
Hang in there, you will have it done sometime, but do everything right the first time and keep asking for help.
Good luck!
Gerard

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windago
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Posts: 97
Joined: Tue. Jan. 10, 2012 5:25 pm
Stove/Furnace Make: Harman/EFM/losch
Stove/Furnace Model: mark III/?350 round nose/ 475
Location: scranton

Post Sat. Jan. 21, 2012 9:01 pm

well called it quits for for the weekend. well we put the water to it and got it up to 35 and the DHW was leaking. surprise! surprise? so we drained it and removed the coil. not one stud broke off. the hot wrench works every time. ;) but I don't like the look of the studs so that will get the box out repair. when we got it up to pressure I didn't see any leaks. other than the DHW.

ok what size coil is this? can I sweat the plate off the coil to replace the plate?
2012-01-21_20-21-56_284.jpg
and ill be doing the retro fit for the DHW I don't want any problems.
2012-01-21_20-22-08_883.jpg
learning from your mistakes it what makes us wise. "wise enough not to do that again"
http://s1071.photobucket.com/albums/u501/windagoman/

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Poconoeagle
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Posts: 6403
Joined: Sat. Nov. 08, 2008 7:26 pm
Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska
Location: Tobyhanna PA

Post Sat. Jan. 21, 2012 9:13 pm

Is it time to offer you three cups of coffee and $75 :D ?????
"Do it Right the First Time" dont leave it for the next guy, as YOU may be the Next guy!!

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009to090
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Posts: 5104
Joined: Fri. Jan. 30, 2009 10:02 am
Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice
Location: Warrenton, NC

Post Sat. Jan. 21, 2012 9:15 pm

Poconoeagle wrote:Is it time to offer you three cups of coffee and $75 :D ?????
I bid 4 Espressos and $100 !! :D
If it ain't broke, don't fix it!

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windago
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Posts: 97
Joined: Tue. Jan. 10, 2012 5:25 pm
Stove/Furnace Make: Harman/EFM/losch
Stove/Furnace Model: mark III/?350 round nose/ 475
Location: scranton

Post Sat. Jan. 21, 2012 9:17 pm

Poconoeagle wrote:Is it time to offer you three cups of coffee and $75 :D ?????
no way. :devil: :rambo:
learning from your mistakes it what makes us wise. "wise enough not to do that again"
http://s1071.photobucket.com/albums/u501/windagoman/

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Poconoeagle
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Posts: 6403
Joined: Sat. Nov. 08, 2008 7:26 pm
Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska
Location: Tobyhanna PA

Post Sat. Jan. 21, 2012 9:24 pm

:lol: Looks like your doing just fine.... it just one piece at a time... dissassemble,clean,inspect,photo,reaasemble,paintblue
repeat......oh yeah photo again.... :D

congrats on the daddy deal
"Do it Right the First Time" dont leave it for the next guy, as YOU may be the Next guy!!

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