Fuel vaporizer

A heater comprising an outer casing and a burner positioned within said outer casing, said burner including a fuel vaporizer, said vaporizer having a non-porous longitudinal member for carrying and vaporizing fuel extending substantially vertically and being centrally located within said burner, said longitudinal member having a first upper end and an outside, said first upper end being open, a cap centrally located over said first upper end of said longitudinal member, a casing having a longitudinal axis and an inside, said casing extending downwardly from said cap and surrounding said longitudinal member over a substantial portion of the length of said longitudinal member, a fuel regulator automatically operable during operation of said burner to provide fuel to said longitudinal member and to maintain the surface of said fuel within said longitudinal member below said first upper end of said longitudinal member, and an annulus defined by said outside of said longitudinal member and said inside of said casing, members within said annulus extending from said outside of said longitudinal member to said inside of said casing, said members extending longitudinally between and contacting both said longitudinal member and said casing over a substantial distance of said longitudinal member, said annulus communicating with said most vertical end of said longitudinal member and being operable to carry fuel vapour received from said longitudinal member downwardly and to disperse said fuel vapour around said annulus of said longitudinal member.