National Boiler convert back to coal from oil???

National Boiler convert back to coal from oil???

PostBy: rivermede On: Sun Jun 01, 2008 9:04 am

I have a National Boiler presently set up for oil but also is designed as a stoker for up to 22 pounds per hour. How would I find the parts or use a new stoker assembly to return this to burn coal? Any help would be much appreciated.
rivermede
 
Stove/Furnace Make: National

Re: National Boiler convert back to coal from oil???

PostBy: LsFarm On: Sun Jun 01, 2008 11:29 pm

Do you have an owners manual that may show a photo of what the original coal stoker unit looked like?? Or can you take a photo of the boiler with the doors and access plates, base openings,, where an ashpan would be??

It will probably be possible adapt an available stoker unit if an original can't be found..

Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: National Boiler convert back to coal from oil???

PostBy: Yanche On: Mon Jun 02, 2008 12:39 am

I have a National Boiler model AO6. It began life as an oil boiler. It was in use from the 40's to the late 70's. I got it when it was replaced by a modern natural gas boiler. My goal was to convert it to hand fired coal. In the early 80's I bought and still have everything except the cast ash pit door to convert it back to hand fire. The boiler is a sectional cast iron boiler with many huge tappings. When used for coal it's rated 19 lbs/hr., 690 sq. ft. water. Any interest in it?

The company where I bought the conversion castings is long gone. The area is now part of the Johns Hopkins Hospital campus.
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

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