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The Oil Burner

Ok, here is what I came up with to inject oil and air, and a bit of propane, into my furnace to make the fire.

I used information from Lionel Oliver's great site at  http://www.backyardmetalcasting.com/

Basically, air is blown in from the right, oil injected from above, and a little propane in the side to get the fire started.

You will see that I have really done some Rube Goldberg plumbing. I'll try to clean things up a bit someday....but

you know how that goes! BTW, the pipe used here is 1-1/2 inch. The smaller fittings and pipe are 1/4" and 1/8" size.

Here is the same thing disassembled. The oil injector is just a #60 hole drilled in a 1/8" brass cap. I cast and inserted an aluminum venturi tube hoping to boost the airflow around the oil port but I think this may have actually reduced the air flow into the furnace. The propane injector I salvaged from a propane powered infrared heater. It just threads into a tapped hole in the pipe. Pneumatic quick-connects make it easy to attach and remove oil and propane feed lines.

2012 Update --

I have a new burner. I'm not going to discuss details of this as it is based on a propriatary design

detailed in a book I bought from/by Colin Peck. I will say that the new burner works

quite well and I'm now able to melt iron in my furnace. The book is available at

Colin's website. I highly recommend it.

The Artful Bodger's Home Foundry - http://www.artfulbodgermetalcasting.com/index.html

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