We use the wvo burner almost every day to heat the hot tub. The pictures seem to be there ok.
The changes I make now are incremental as the basic system is pretty well done. The most recent change I have made is to pass the out coming hot water through a tube with a fuel line inside, this warms the fuel oil and helps ignition. Since the pictures, I have also put a tape drive motor driving a gear pump to deliver fuel to the top of the christmas tree. Also put a washer in front of the babington ball which catches some of the oil from the jet, this stops oil pooling in the burner tube. I now use a tiger torch to light the burner, this gets the burner tube up to red hot in just a few minutes which really makes a difference.
All in all this is the best gizmo I have built (though I do make a buck or two from my patent, easyearwire.com). With a bit of fussing to light, the burner will handle waste motor oil, and any light oil stock.
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