1) A hand-held transmitter. This is like a TV remote with which a person operates various features of the fireplace.
2) A receiver. This is located inside or near the fireplace and receives the radio frequency from the hand-held transmitter.
3) A Solenoid (for remote model RCT-MLT). This provides the option of a remote controlled variable flame. The solenoid is installed onto the regulator (located on the gas valve) of the fireplace to vary the gas pressure to the burner.