Patent ID: 7744373

Claim:
A fire fighting trainer comprising: a tank for containing a volume of a non-combustible medium with the non-combustible medium having an upper surface within the tank; the tank having an open upper end exposing the upper surface; a fuel distribution system for distributing a combustible fuel into the tank beneath the upper surface, the fuel distribution system including a plurality of fuel outlets within the tank; an oxygen-containing gas distribution system for distributing an oxygen-containing gas into the tank, the oxygen-containing gas distribution system including a plurality of gas outlets within the tank, the gas outlets being positioned to deliver the oxygen-containing gas at a surface of the non-combustible medium in a core area of the tank surrounded by the fuel outlets of the fuel distribution system; an ignition system for igniting a mixture of a vapor of the fuel and the oxygen-containing gas at the upper surface for said mixture to ignite into flame.