While your water heater can be set to 140 f to protect against bacterial contamination the water coming out of your shower head can always be 100 f a maximum output temperature is set on the valve.
Thermostatic control valve water heater.
Also commonly referred to as anti scalding valves our tmvs accurately control the temperature of hot water at the source of heat water heater to deliver point of use showers sinks lavatories bath tubs etc water at safe controlled temperatures regulate water distribution and flow and provide sanitary anti scald protection.
The control of water temperature for the source of supply should be controlled by asse 1017 listed mixing valves.
Turn the water heater thermostat control to the pilot position.
Water heater problems that may be caused by the gas control valve include a faulty hot water heater thermostat faulty gas valve pilot light that won t light and tripped heat limiter here s what you need to know about replacing your water heater s gas control valve.
Commonly used in washdown applications these systems include a temperature regulating valve with an internal check valve and vacuum breaker to prevent backflow two ball valves for manual control of the water supply a dial thermometer that displays the outlet temperature and a hose rack for storage.
Turn off the shutoff valve at the cold water line that attaches at the top of the tank.
The advantage with thermostatic valves is the direct control over output temperature.
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