Tankless Water Heater Temperature Settings

For your safety rinnai tankless water heaters come with a maximum temperature default setting of 120 to help prevent scalding.

Tankless water heater temperature settings.

The arguments for 120 f temperature setting. Water heaters are factory set at osha recommended levels around 140 degrees. When your application needs higher than 140f degrees you have to install a mixing valve to moderate the temperature to 140f degrees. However by following these simple steps you can increase the temperature to 140 if you choose.

So a lot of people crank it up as high as they can get and they ll get it up to 140. The temperature settings vary from 125 to 140f degrees and you can do it by adjusting dip switch 6 to on in the sw1 bank of 8 dip switches. Here are the temperatures to have in the home. If we set the water heater temperature at 120 f we may get the following advantages as advice by the american society of sanitary engineering helps to cut down bills savings come from turning down of the temperature of your water heater subjected to standby loses and consumption.

Sometimes people call in because their tankless water heater keeps cutting on and off. This can be prevented by setting the water heater to a temperature where the bacteria legionella cannot thrive. Most of the time we find that when we go out there that the water heater is set too hot. For safety always unplug any appliance before continuing.