Thermocouple assembly for propane gas patio heaters with 350mm stainless steel thermocouple, 4.8mm flat terminals, FD4 weak current tilt dump switch gas resistor with R≤10 mΩ to send signal to gas valve when pilot light is lit allowing main burner ignition and stop gas flow if patio heater is tilted beyond safe angle as replacement part for malfunctioning thermocouple sensor improving patio heater ignition and safety.