The Hidden Dangers of a Constantly Lit Water Heater Pilot Light
What To Know
- A water heater pilot light is a small flame that burns continuously to ignite the main burner when hot water is required.
- These water heaters have a pilot light that remains on constantly to keep the burner ready to ignite when hot water is needed.
- In certain situations, it may be beneficial to turn off the pilot light on a gas water heater with a standing pilot.
When it comes to water heaters, the pilot light is a crucial component that ensures a constant supply of hot water. However, many homeowners wonder if the pilot light should be on all the time or if it can be turned off to save energy. In this comprehensive guide, we will delve into the topic of “is water heater pilot light always on” and provide you with all the essential information you need to make an informed decision.
What is a Water Heater Pilot Light?
A water heater pilot light is a small flame that burns continuously to ignite the main burner when hot water is required. It is located near the bottom of the water heater and is usually protected by a metal guard.
Should Water Heater Pilot Light Always Be On?
The answer to this question depends on the type of water heater you have.
Electric Water Heaters
Electric water heaters do not have a pilot light. Instead, they use an electric heating element to warm the water.
Gas Water Heaters
Standing Pilot Gas Water Heaters: These water heaters have a pilot light that remains on constantly to keep the burner ready to ignite when hot water is needed.
Electronic Ignition Gas Water Heaters: These water heaters do not have a standing pilot light. Instead, they use an electronic ignition system to light the burner when hot water is required.
Advantages of a Standing Pilot Light
- Immediate Hot Water: The pilot light ensures that hot water is available instantly when you turn on the faucet.
- Reliability: Pilot lights are generally reliable and can operate for several years without any issues.
- Safety: The pilot light acts as a safety feature, preventing gas from accumulating in the water heater.
Disadvantages of a Standing Pilot Light
- Energy Consumption: The pilot light consumes a small amount of gas even when hot water is not being used.
- Potential Carbon Monoxide Emissions: If the pilot light is not properly adjusted or maintained, it can produce carbon monoxide.
When to Turn Off a Water Heater Pilot Light
In certain situations, it may be beneficial to turn off the pilot light on a gas water heater with a standing pilot.
- Extended Vacations: If you are going on an extended vacation, turning off the pilot light can save energy.
- Safety Concerns: If you suspect a gas leak or carbon monoxide emissions, turn off the pilot light immediately and contact a qualified technician.
- Electronic Ignition Water Heaters: If you have an electronic ignition water heater, there is no need to keep the pilot light on.
How to Turn Off a Water Heater Pilot Light
1. Safety First: Ensure that the gas supply to the water heater is turned off.
2. Locate the Pilot Light: Find the metal guard that protects the pilot light.
3. Press the Gas Control Knob: Push the gas control knob in and turn it counterclockwise to the “Off” position.
4. Wait for the Flame to Extinguish: The pilot light will take a few seconds to go out.
How to Relight a Water Heater Pilot Light
1. Turn on the Gas Supply: Open the gas supply valve to the water heater.
2. Locate the Pilot Light: Find the metal guard that protects the pilot light.
3. Press and Hold the Gas Control Knob: Push the gas control knob in and hold it while lighting the pilot light.
4. Ignite the Pilot Light: Use a long match or lighter to ignite the pilot light.
5. Release the Gas Control Knob: Once the pilot light is burning, release the gas control knob.
Troubleshooting Pilot Light Issues
If your water heater pilot light is not staying lit or is causing problems, here are some troubleshooting tips:
- Check the Thermocouple: The thermocouple is a safety device that shuts off the gas supply if the pilot light goes out. If the thermocouple is faulty, it may need to be replaced.
- Clean the Pilot Light Assembly: Dirt and debris can accumulate around the pilot light assembly, causing ignition problems. Clean the assembly with a soft brush.
- Adjust the Gas Flow: The gas flow to the pilot light may need to be adjusted. Consult your water heater manual for instructions.
Alternatives to Standing Pilot Lights
If you are concerned about the energy consumption or potential safety issues associated with a standing pilot light, consider the following alternatives:
- Electronic Ignition Water Heaters: These water heaters do not have a standing pilot light and use an electronic ignition system instead.
- Solar Water Heaters: Solar water heaters use the sun’s energy to heat water, eliminating the need for a gas pilot light.
In a nutshell: Making an Informed Decision
Whether or not to keep the water heater pilot light on depends on your specific needs and circumstances. If you value immediate hot water and reliability, a standing pilot light may be the best option. However, if you are concerned about energy efficiency or safety, consider an electronic ignition water heater or a solar water heater. By understanding the pros and cons of each option, you can make an informed decision that meets your requirements.
Answers to Your Most Common Questions
Q: Why does my water heater pilot light keep going out?
A: The thermocouple may be faulty, the pilot light assembly may need cleaning, or the gas flow may need to be adjusted.
Q: Can I turn off the pilot light on my water heater for a few hours?
A: Yes, but only if you have an electronic ignition water heater. Standing pilot lights should not be turned off for extended periods.
Q: How often should I check my water heater pilot light?
A: It is recommended to check the pilot light once a year to ensure it is burning properly.
