EFM Hanging Baffle/deflector Plate

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leward
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Post by leward » Sat. Aug. 25, 2018 11:48 am

OK guys -- I am rebuilding a EFM520 ( square door) for my son. Pretty obvious the previous owner was pretty neglectful in cleaning out anything.
The hanging baffle/deflector plate is warped beyond using.
I can't seem to find one used anywhere, and new from EFM is $$$
Any thoughts on cutting one out of a good steel plate?
(original is cast iron)
Even if he'd only get a couple years out of a steel one, I can make them till the cows come home for next to nothing.
Would that work, or would a steel one warp beyond use quickly.
Thanks!

 
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Rob R.
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Post by Rob R. » Sat. Aug. 25, 2018 11:58 am

Go ahead and make a steel one. When it starts to warp turn it around. :D

 
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Scottscoaled
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Post by Scottscoaled » Mon. Aug. 27, 2018 3:12 pm

Weld a 1” brace the length of the back and it won’t warp so easily.

 
leward
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Post by leward » Mon. Aug. 27, 2018 3:36 pm

Pretty much what I had in mind.
Does cast iron take heat so much better, or is it easier for the factory to have them "poured" and not do much machining?


 
ben
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Post by ben » Tue. Aug. 28, 2018 7:06 am

My EFM is a 1966 and my deflector unit is perfect no signs of warping or cracks. Last month I cleaned it with a wire brush.

 
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Rob R.
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Post by Rob R. » Tue. Aug. 28, 2018 11:14 am

Cast iron is very durable in this type of application.

The baffles last longer in units that are run at a low feed rate. Once you get at 6 teeth or more the baffle really gets cooked.

 
leward
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Posts: 129
Joined: Fri. Jul. 03, 2009 2:41 pm
Location: Clearfield County, PA
Stoker Coal Boiler: EFM520
Hot Air Coal Stoker Stove: Hitzer 50-93 at camp
Hand Fed Coal Stove: Hitzer 354 double door woodburner

Post by leward » Tue. Aug. 28, 2018 11:16 am

Makes sense. The housing unit this came out of appeared to be a two story brick with zero insulation.
Probably ran at 6+ teeth for its life until now. It will be on easy street the rest of its life

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