This is my first attempt at a waste oil burner. I had been designing a recirculating flue burner patterned from a space heater designed for construction sites. Then I discoverd I am not an original thinker.....apparently this idea is working & pattented already.(so much for getting rich) I will just build one for myself & see if it works well enough to fire the foundry & A soon to be kiln for the ceramics (kind of) I am playing with latley.

it begins with a 2 pc venturie form for the inside shape of the burner.

I am using a standard fire clay mixed with paper pulp(standard paperclay recipie) to form the venturie. when that is dry I bore a few holes for the recycling orifaces. these are made from old candle wax softened in quite warm water & extruded into rods with a standard clay extruder from the Hobby-Lobby ($10)

 I tapered the rods a bit. no real scientific fomula, It just looks right to me. Then we bend them to fit into the body & add what will be the fuel feed line that makes a full circle around what i hope will be a hot enough area to vaporize the incoming oil.

The unit is started on propane untill the flair becomes hot enough to sustain combustion on oil. I will use a vacume motor for the blower(goodwill purchase) to supply the air untill I make time to build a quieter pressure blower.

I have sized the units rather small.Here is a list of problems that have become apprent as I have worked through this exersize.

1) as a single body I can see a heat related failure from uneven temp.

(next version will have seperate flair section to address "wild expansion" senarios

I am looking foward to getting the clay fired & see if the concept works as described by the guy's who sell these for money. I am anxious to see where the heat(& how hot) the other sections in front of the flair get as i envision a stainless steel unit with a ceramic flair in the future if all goes well. Here's too experimentation!