Patent ID: 8469702

Claim:
A combined water and fire display system comprising: a reservoir containing a volume of water; at least one water source associated with said reservoir; at least one power source associated with said system; at least one source of flammable gas associated with said system; and a unit for emitting flammable gas disposed at least partially beneath said volume of water, said unit comprising: (a) a first gas line for directing flammable gas from said at least one source of flammable gas to one or more locations beneath the surface of a volume of water, wherein a portion of said first gas line extends above a predetermined maximum allowable water level so as to prevent the unwanted entrance of water into at least a portion of said first gas line; (b) at least one water level sensor, wherein said water level sensor is operable to control one or more control valves operable to selectively terminate a flow of said flammable gas upon detection of an absence of a pilot light flame and operable to selectively transmit water from said water source to said reservoir upon the detection of an absence of a predetermined quantity of water; (c) a recirculation drain; (d) an overflow drain; (e) a pilot light positioned above said volume of water for igniting said flammable gas; (f) a second gas line for directing flammable gas from said at least one source of flammable gas to said pilot light; (g) a thermocouple for determining if said pilot light is lit, said thermocouple operable to communicate with one or more control valves to selectively terminate a flow of said flammable gas from said source of flammable gas upon detection of an absence of pilot light flame; and wherein said recirculation drain is in selective communication with at least one pump connected to a plurality of selectively operable channels that return water to said reservoir.