Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

This burner is essentially of the blow torch family of burners and works just like a plumbers blow torch of old. Saito still makes marine engines with boilers that use them, specifying alcohol (meths) as fuel, though the old plumber's units did use a variety of other fuels, and yours may have as well. Saito's burners do not use compressed air pre-pressurization, but rather just use a flame cup to heat up the torch head which then pressurizes the tank at the same time as it volatilizes the fuel. I suspect that your burner used a flame cup of some form as well, otherwise just pressurizing the tank would have it jetting raw fuel out the torch, unless pre-heated in some fashion to vaporize the fuel, which is what the coils of feed piping around the burner is supposed to do.

Hope any of that made sense and helped!