Vaporizer-burner

A vaporizer-burner for use with a liquid fuel such as oil, comprising:

• a housing including an interior peripheral surface,
• a combustion chamber, including a perforated exterior peripheral surface, disposed within said housing, said combustion chamber including a vaporization portion and an ignition portion,
• said interior peripheral surface of said housing and said exterior peripheral surface of said combustion chamber being separated from one another to define therebetween a gap;
• a liquid fuel source including means for conducting said liquid fuel to said vaporization portion of said combustion chamber,
• an air source including a duct for conducting air from said air source to said gap,
• said duct supporting therein means, extending along a portion of the length of said duct, for dividing air flowing in said duct into a primary flow and a secondary flow, said dividing means having one end projecting into said gap and an opposing end including adjustable means for simultaneously altering the amounts of said primary and secondary flows, and
• means, extending across said gap from said housing interior peripheral surface to said combustion chamber exterior peripheral surface, for separating said gap into a first portion for receiving said primary flow and a second portion for receiving said secondary flow,
• said separating means being coextensive with said dividing means one end projecting into said gap,
• whereby upon adjustment of said altering means, the proportion of said primary and secondary flows can be simultaneously selected, and the efficiency of burning of the liquid fuel can be optimized.