AM transmitter Bunsen burner Dutch oven FM transmitter RT transmitter alpha radiator amateur transmitter beacon bedpan beta radiator bloom heater brazier brick oven calefactory car heater defroster dielectric heater dielectric preheater electric blanket electric heater electronic heater fan marker fireless heater fission products fluorescent paint foot warmer forge gamma radiator gas log geyser heat lamp high-frequency heater hot-water bag hot-water bottle hot-water heater induction heater infrared heater infrared lamp ingot heater iron heater kerosene heater kiln microphone orchard heater oven preheater radio beacon radio range beacon radio transmitter radio-frequency heater radioactive waste radiocarbon radiocopper radioelement radioiodine radioisotope radiomicrophone radiosonde radiothorium radium dial radium paint register sun lamp tracer tracer atom tracer element transceiver transmitter