Abstract: A combustion head assembly comprising a mounting plate having a plurality of apertures and adapted for mounting to a boiler, and a plurality of combustion heads removably mounted in each of the apertures. The combustion heads each have a fuel nozzle and ignition tips. There is at least one fuel source removably connected to the fuel nozzles of each of the combustion heads and at least one ignition source removably connected to the ignition tips of each of the combustion heads. There is at least one source of forced air removably connected to said combustion heads, and a controller adapted to operate each combustion head independently of the other combustion heads. Each combustion head can be removed from the assembly for repair and inspection without interrupting the operation of the other combustion heads and the boiler.

Abstract: A system for deflating a tire on a wheel of a vehicle upon theft of the vehicle, comprising a wheel mounted unit and at least one remote unit for deactivating the wheel mounted unit via remote signals. The wheel-mounted unit is automatically armed upon stopping of the vehicle and comprises a pressure release assembly mounted in an orifice of the wheel for deflating the tire, a sensor adapted to sense wheel rotation and wheel speed, and a controller connected to the sensor and pressure release assembly for activating the pressure release assembly in response to wheel rotation sensed by the sensor. There is a receiver for receiving incoming RF signals from the remote unit, and a power supply connected to the pressure release assembly, sensor, controller and receiver. Each wheel could have its own wheel-mounted unit. After deflation, the wheel-mounted units are automatically re-set.