Most 1 - 2 pint kerosene stoves operate at roughly the same pressure. This is controlled initially by pumping, and maintained by thermal feedback into the burner and tank. If these 1-2 pinters are all fitted with the same diameter (0.32mm) jet, then they should all have the same mass flow of vaporised fuel out of the jet. If the burner is correctly designed to provide sufficient air to burn all the fuel correctly, then they should all have the same power output and the same fuel consumption. But they don’t. What am I missing?