Abstract: A heater includes a body, a burner assembly, a gas tank, and a reflecting plate. The burner assembly is installed on the body. The gas tank is arranged in the body and directly below the burner assembly, and has an interface end connected to a fuel inlet end of the burner assembly via a valve. The reflecting plate is installed in the body and located between the burner assembly and the gas tank. The reflecting plate prevents heat coming from a bottom portion of a burner of the burner assembly from being radiated directly to the interface end of the gas tank and allows heat coming from around the burner to be radiated to a periphery of the interface end of the gas tank and heat the gas tank.