Here is the gear-pump pressure nozzle burner I am building to replace my siphon nozzle burner. My siphon nozzle burner will become my backup burner. The intent of this design is to build a burner that has the excellent atomization/control/consistency/reliability, and instant-start full-ouput capability (without propane) that a siphon nozzle burner running on diesel has, but without using an air compressor. The gear pump and associated motor are inexpensive compared to a good air compressor, and if this burner works as well as I think it will, I will build two of them, and keep one as a spare. Here is the motor. Definitely oversized, but this is the one I got.