Efm 350 auger length

Efm 350 auger length

PostBy: Ted4 On: Thu May 16, 2013 10:17 pm

Im finally getting around to getting my Efm 350 put in. The boiler only came with an auger tube about24 or 30" long. I was told it was used to pull coal from a 55gallon drum. I was reading about a little smoke coming back through the short tubes on some boilers. I planned on putting boiler close to my bin in an outside structure. I'm a little tight on space, what's the opinion on using such a short tube? Need help!!
Ted4
 

Re: Efm 350 auger length

PostBy: Scottscoaled On: Thu May 16, 2013 10:38 pm

Short augers are a bitch. Sometimes they work, sometimes not. If you have room, adding a couple feet of auger usually works wonders. :)
Scottscoaled
 
Stoker Coal Boiler: EFM 520x4, 350, 700. Van Wert 400 x 2, 800, 1200.
Coal Size/Type: Lots of buck

Re: Efm 350 auger length

PostBy: Ted4 On: Thu May 16, 2013 10:41 pm

What's the issue, the smoke or something else?
Ted4
 

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Re: Efm 350 auger length

PostBy: Rob R. On: Fri May 17, 2013 5:55 am

Ted4 wrote:What's the issue, the smoke or something else?


EFM did not design the stoker to be run with just the pot auger. Many people can get away with it, but you must use rice size coal, and have good draft. The issue is that the combustion air will take the path of least resistance...which is supposed to be the chimney. If you run just the short auger and the coal isn't packed tight enough within the pipe, the fumes from the burn pot will go out through the pipe and into the bin/drum.

I recommend getting a bin auger & pipe and skipping the drama of a boiler room that smells like sulfur.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

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