Green Plumbing

Answer: C - Anti-scald valves, like tempering valves, regulate the water temperature to fixtures so that it is not too hot by mixing it with a cold source. In addition, anti-scald valves have mechanisms that allow them to instantaneously mitigate rapid increases in hot water temperature that can lead to scalding and burns. Two main types of anti-scald valves are pressure-balance and thermostatic.