How To Turn Down Your Water Heater Temperature

High water heater temperatures often go unnoticed. Most homeowners never adjust the thermostat after installation. When the temperature is set too high, it increases LG&E energy costs and raises the risk of scalding at faucets and showers.

Learning how to turn down water heater settings is a simple step that can improve safety and reduce energy use. If you are wondering how to lower water heater temperature in your Louisville home, the process usually takes only a few minutes depending on the type of unit you have.

Below is an easy to follow guide to adjusting the water heater temperature setting safely.

What Temperature Should Your Water Heater Be Set To?

The ideal water heater temperature recommended by the EPA is 120 degrees Fahrenheit. This temperature balances efficiency with safety and helps limit the risk of bacteria growth.

Many water heaters leave the factory set around 140 degrees Fahrenheit. That higher setting increases energy use and raises the chance of scalding, especially for children or older adults.

Setting your water heater temperature to 120 degrees can provide several benefits:

• reduced energy consumption and lower utility bills
• decreased scalding risk at sinks and showers
• stable hot water supply for daily use

Maintaining this water heater temperature setting can also help extend the life of internal components.

How To Turn Down a Gas Water Heater

Adjusting a gas water heater usually requires only a simple dial adjustment.

Follow these steps:

1. Locate the temperature dial near the burner assembly at the bottom of the tank.
2. Identify the current setting. Some dials use numbers while others use markings such as A, B, C, or Low, Medium, and Hot.
3. Turn the dial slightly toward the lower temperature setting.
4. Wait several hours and test the hot water temperature at a faucet.

Small adjustments make a difference. Avoid turning the dial too low, which may affect hot water availability.

If you cannot locate the thermostat dial or smell gas near the water heater, contact a professional instead.

How To Turn Down an Electric Water Heater

Electric water heaters require a few additional steps because the thermostats are located behind access panels.

Follow these steps carefully:

1. Turn off the power to the water heater at the breaker panel.
2. Remove the upper access panel on the side of the tank.
3. Locate the thermostat dial and adjust it to the desired temperature.
4. Remove the lower access panel and adjust the second thermostat to the same temperature.
5. Replace the panels and restore power at the breaker.

Both thermostats must match the same setting. If they differ, the water heater may heat unevenly.

If you are unsure about the wiring or thermostat location, a licensed technician should handle the adjustment.

How To Adjust a Tankless Water Heater

Tankless water heater systems usually include a digital control panel that allows easy temperature adjustments.

In most cases you can:

1. Locate the digital temperature display on the unit or wall-mounted controller.
2. Use the adjustment buttons to reduce the temperature to the desired setting.
3. Confirm the new setting on the display.

Some units hide the control panel inside the cabinet or require adjustments through the manufacturer’s interface. If the controls are not visible, refer to the owner’s manual or review information about tankless water heater systems.

When To Call a Professional Instead

Sometimes lowering the temperature dial will not solve the problem.

Professional service may be needed if:

• you smell gas near the water heater
• the thermostat dial cannot be located
• the water heater does not produce hot water after adjustment
• the unit is more than ten years old

In these cases a technician can inspect the system and determine whether repair or replacement is needed. You can also learn more about your water heater and how it operates during a service visit.

If the system requires ongoing maintenance, plumbing maintenance plans can help extend the life of the equipment.

Schedule Water Heater Service in Louisville

Adjusting the thermostat can improve energy efficiency and reduce scalding risk, but some situations require professional inspection.

If your water heater temperature remains inconsistent or the system needs repair, plumbers from Maeser can help.

Schedule service online or call (502) 206-4192 to have a technician inspect your water heater and restore safe operation.