Waste oil heater having fuel control system

In a pot type heat vaporizing oil heater including an oil burning section and an oil feeding system for feeding oil from a tank to the burning section, said oil feeding system having pump means for pumping oil to the burning section, motor means for operating the pump means, and terminals adapted to be connected to an electric source;

• the improvement comprising a control system for the oil feeding system, said control system comprising relay means and thermo-responsive switch means connected between said motor means and said terminals, combustion detecting means mounted in the burning section to detect combustion of oil, said detecting means being connected to said relay means to allow electric current to pass through the relay means from the terminals to the motor means when said detecting means detects combustion of oil, said thermo-responsive switch means being connected to enable operation of said relay means and said detecting means only when the combustion of oil in the burning section is stably established, and further including indicator means connected to indicate the on-off condition of said thermo-responsive switch means, and an operating switch for connecting said combustion detecting means to said relay means.