Tunneled multi-swirler for liquid fuel atomization

Uni-directional anti-backsifting fluidization nozzle and a fluid

Variable capacity burner assembly

Variable heat output burner assembly

Variable low intensity infrared heater

Vehicle heater and controls therefor

Vibration-resistant low NO.sub.x burner

Vortex type burner

Wall fired duct heater

Warm-up apparatus for fuel evaporator

Waste gas burner assembly

Waste oil fired heater with improved two-stage combustion chambe

Wide flame burner

Wide range oxy-fuel burner and furnace operation

Wire lock shield face for burner nozzle

Working hole for oxyburner, oxyburner assembly comprising such a