What should my hot water tank thermostat be set at?
60-65ºC
A domestic hot water cylinder thermostat should be set at 60-65ºC. This is high enough to kill off harmful bacteria such as Legionella. If you set the thermostat much higher than this the water that comes out of the taps will be too hot and there’ll be a risk of scalding.
How do I adjust the temperature on my gas water heater?
If you have a gas water heater, adjusting the temperature is easy. Simply turn the dial located on the front of the gas control valve. The hot setting will be around 150 degrees while warm will be around 95 degrees. As mentioned earlier 120 degrees is the recommended setting.
What temperature is B setting on water heater?
130 degrees
Generally, A means 120 degrees, B means 130 degrees, and C means 140 degrees. Refer to your water heater’s manual to confirm these settings.
What should water heater be set at AB or C?
How to Set Temperature on a Gas Water Heater
- Low (or Warm) = 80-90°
- Hot (or triangle symbol) = 120°
- A = 130°
- B = 140°
- C = 150°
- Very Hot = 160°
Do you need a cylinder thermostat?
If you have a hot water cylinder and it doesn’t have a thermostat, then you should get one fitted. Most plumbers can fit a thermostat for you. If your water is heated by electric immersion heater, then an electrician could fit it. A hot water cylinder thermostat should usually be set to 60˚C.
Is 50 degrees hot enough for hot water?
The temperature at any tap should be above 50 degC within 60 seconds. See the HSE L8 document Legionnaires’ Disease; The control of legionella bacteria in water systems. The thermostat is usually 1/3rd or 1/2 of the way up the cylinder and the water will stratify and be colder blow this.
Should water heater thermostats be set to the same temperature?
The majority of electric water heaters have two thermostats: an upper and a lower, located under two control panels. To ensure your electric water heater works as efficiently as possible, you should set both of the thermostats at the same temperature.
Where is the thermostat on a gas hot water heater?
On most gas water heaters, the gas control valve, which includes both a thermostat and a heat limiting device, are located on the outside of the unit, near the bottom. It can be identified as the component with the controls for temperature and the pilot light.
How does a gas water heater thermostat work?
The thermostat is a thermistor that responds to heat by producing a small electric current. The current increases when water temperature increases, and drops when temperature drops. Changes in the electric current cause gas control to turn ON and OFF. When gas control turns ON, it releases gas to burner.
What temperature is a on a hot water heater?
The EPA recommends 120 degrees because it’s hot enough to keep diseases at bay, it’s not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient.
Why do I have to keep hitting the reset button on my hot water heater?
If your water heater reset button keeps tripping, one of your heating elements may be broken or worn out. As this component is used to heat water, your hot water heater won’t work without it. When the reset button on a water heater thermostat keeps tripping, the metal casing of the heating element may have cracks.
What do the letters mean on a water heater?
Here is what temperature each letter stands for: Hot- 120 degrees. A- 130 degrees. B- 140 degrees. C- 150 degrees.
What does TU on thermostat mean?
TPI = Threads per Inch. TRV = Thermostatic Radiator Valve. TS = Temperature Sensor (UK) TU = Tune Up.
What is pilot setting on gas water heater?
Setting the system to “Vacation” or “Pilot” mode saves energy while also preventing damage to your water heater. It’s a compromise between using no power at all and using a little bit of heat to avoid extensive damage to your system.
Why does my gas hot water heater pilot keep going out?
The most common reason that your pilot light on your water heater keeps going out is a damaged, bent or dirty thermocouple.
Can I turn off water and leave gas water heater on?
Any time you go on vacation, it’s best to also turn off your water heater as well. Turning off the source of the heat (gas, electric) while you’re away will not damage your water heater. This will save you in power (gas) and potential damage if it leaks too.
How do I know if my water heater pilot light is out?
The pilot light on most water heaters is located at the base of the unit, below the gas control valve. Open the access panel or door to the burner chamber and look inside. There, you’ll find the pilot light tube, which should have a steady blue flame. If you don’t see the flame, the pilot light is out.
Do all gas water heaters have a pilot light?
Gas and propane fueled water heaters use a small flame to ignite the burner. This small flame is called a pilot light and it stays lit at all times. When the water heater needs to heat the water within the tank, it ignites the gas burner with the help of the pilot light.
Does gas still flow when pilot light goes out?
If your pilot light repeatedly goes out, this is a likely culprit. If this flame sensor should fail, gas will continue to flow even after the pilot light has been extinguished, causing a safety hazard and requiring immediate repair.
