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JohnO's oil burning wood-stove accessory

 
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JohnO



Joined: 30 Aug 2006
Posts: 72
Location: Moses Lake, Washington

PostPosted: Mon Jan 29, 2007 4:09 pm    Post subject: JohnO's oil burning wood-stove accessory Reply with quote

This was inspired by Murphy's discussion. It consists of a steel plate that replaces one "burner" on the wood-stove in my shop. The plate has a large diameter pipe welded through it. Hanging underneath the pipe is the burner. Oil or biodiesel drips down the pipe, to feed the fire in the burner.

The burner is a length of shallow steel channel, bent into a V just deep enough to form a shallow pool. It has a steel bar welded to the middle with a drilled hole at the top to hang from. Holes in the bottom end of the large diameter pipe fit a bolt, that the burner hangs from.

With the door closed, the only air inlet is down the large diameter pipe. To start the fire, I used a wad of paper soaked with oil, lit it, then closed the door. It was off and running in moments.

The fuel tank is a heavy steel pipe on legs, with a needle valve to drip into the pipe. It might be better to have the tank separate from the stove, and rigidly mounted so it can't tip over.



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Here's the pipe and plate, with the burner hanging underneath.
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100_1354.JPG
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This is a bad picture showing the fire in the burner. It's a lot different when the door is closed. I would have used a circular dish, but had the channel available, and it fits across the stove nicely.
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Here's the finished product on the stove. This tank holds a gallon comfortably, which heated the shop all afternoon, with plenty left over.
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JohnO



Joined: 30 Aug 2006
Posts: 72
Location: Moses Lake, Washington

PostPosted: Fri Dec 07, 2007 4:37 am    Post subject: My modified Sears Pot burner heater Reply with quote

I used a punch that just fit the holes in the burner liner to angle the air inlet holes. This created a swirling flame, rather than the calm, laminar flame that left heavy carbon deposits. The has had the effect of dramatically reducing the amount of carbon deposited in the bottom of the burner pot.
This did NOT increase the heat output, nor the amount of fuel (B100) burned to keep the shop warm.
This also did NOT enable the heater to burn SVO, nor waste oil, nor glycerine. It is barely able to burn well-made biodiesel, but thankfully that's what I've got.
At 0degC it burns about 1 gallon/day to keep a well insulated 600 sq ft shop warm.



Sears heater with angled air holes.jpg
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