In Fig. 202 is shown a sectional view of the burner as it appears in the stove. The supply tank, or hollow wire from the pressure tank, sends the gasoline into the tube _A_ at the bottom of the stove, to which several burners may be attached. The tube _B_, through which the gasoline percolates on its way to the generator, is filled with moderately coarse sand, or other material that is intended to prevent the gasoline from being forced out of the pipe by the pressure that is developed in the generator. The pieces _C-C_ are perforated metal plugs that prevent the escape of the particles of which _B_ is composed. The generator is a brass casting _D-D_ which is firmly screwed to the top of the tube _B_. A needle-valve _E_ governs the discharge of the gasoline vapor at _G_, where the vapor enters the tube _H_, as indicated at _K-K_. The gasoline vapor enters the open Bunsen tube _H_, and with it is carried the air necessary to produce the required gas for complete combustion. The piece _N_ is the generating cup in which is burned the generating fluid--either gasoline or alcohol. The gasoline from the pipe _A_ percolates through the material in _B_ and flows into the generator. The needle-valve being closed, the space _D-D_ fills with gasoline. To light the burner, the hand-wheel _J_ is turned, opening the needle-valve a sufficient length of time to allow the gasoline to fill the cup _N_ with fuel for generating the initial volume of vapor. A still better way is to fill the cup with alcohol, because the burning alcohol does not fill the air with smoke and odors, as in the case of gasoline, when used for generating purposes. The generating material having been ignited and burned out, the generator is hot and filled with vapor. The heated generator vaporizes a portion of the contained gasoline and forms sufficient pressure to force the remaining gasoline back through _B_ into the supply tank. The material of the tube _B_ permits only a slow movement of the gasoline and prevents the possibility of surging in the generator. The initial supply of vapor being generated, the needle-valve may be opened and the gas lighted above the burner _I-I_, where it should burn in little jets at each opening with the characteristic Bunsen flame. It sometimes happens that the generator is not heated sufficiently, by the generating flame, to vaporize the necessary gasoline for starting the burner; in this case liquid gasoline will be forced from the opening _G_, and the burner will flare up intermittently in a red smoky flame. When this occurs the burners must be regenerated.