Skip to main content
Version: 2011.07.01

Water Heater: Gas

Carefully read and follow the manufacturer's literature for your specific model of water heater.

Condensation​

Condensation inside your new water heater may drip onto the burner flame. This causes no harm and in most cases will disappear in a short period of time.

Drain Tank​

Review and follow the manufacturer's timetable and instructions for draining several gallons of water from the bottom of the water heater. This reduces the build-up of chemical deposits from the water, prolonging the life of the tank and saving energy dollars.

Pilot​

warning

Never light a gas pilot when the water heater tank is empty. Always turn off the gas before shutting off the cold water supply to the tank.

To light the water heater pilot (this is for water heaters that have pilot lights):

  1. Remove the cover panel on the tank to expose the pilot.
  2. Rotate the on-off-pilot knob to the pilot position. When the knob is in this position, the red button can be depressed.
  3. While depressing the red button, hold a match at the pilot. On electronic ignition water heaters, press the ignition button.
  4. Once the pilot lights, continue to hold the red button down for 30 to 60 seconds.
  5. When you release the red button, the pilot should stay lit. If it does not, wait several minutes to allow the gas to dissipate from the tank and repeat the entire process.
  6. If it stays lit, rotate the on-off-pilot knob to the on position.
  7. Reinstall the cover panel and then adjust the temperature setting with the regulating knob on the front of the tank.

Water heaters sometimes collect small quantities of dirty water and sediment in the main gas lines, which may put out the pilot light.

While away from home for an extended period of time, set the temperature to its lowest point and leave the pilot lit.

Safety​

  • Vacuum the area around a gas-fired water heater to prevent dust from interfering with proper flame combustion.
  • Avoid using the top of a heater as a storage shelf.

Temperature​

The recommended thermostat setting for normal everyday use is "normal." Higher settings can result in wasted energy dollars and increase the danger of injury from scalding. Hot water will take longer to arrive at sinks, tubs, and showers that are farther from the water heater.

Troubleshooting: No Hot Water​

Before calling for service, check to confirm that the:

  • Pilot is lit. (Directions will be found on the side of the tank.)
  • Temperature setting is not on "vacation" or too low.
  • Water supply valve is open.

Refer to the manufacturer's literature for specific locations of these items and possibly other troubleshooting tips. Even if these troubleshooting tips do not identify a solution, the information you gather will be useful to the service provider you call.

Warranty Coverage: See Water Heater: Gas Standards for coverage details.