Reliance Natural Gas Water Heater Control

Reliance Gas Control Valve And Thermostat. Natural Gas thermostat with four settings: Low, Warm, Energy Efficient, Hot. 55,000 BTU for foam insulated energy efficient models and standard fiberglass insulated models. Shank Size: 1-1/4 In., BTU Rating: 55,000 BTU, Temperature Rating: 210 F.