A gas water heater is one of those things you don't think about, until you're standing in a cold shower. The good news is that a little basic maintenance goes a long way, especially in Houston where hard water and long run-times can shorten a heater's lifespan if ignored.
Here's what every homeowner should know.
Annual Maintenance: What Actually Matters
You don't need to be a plumber to take care of your water heater, but you do need to pay attention once a year.
1. Flush the tank annually
Houston water contains minerals that settle at the bottom of the tank over time. That sediment:
- Reduces efficiency
- Causes popping or rumbling noises
- Shortens the life of the heater
A simple annual flush helps prevent all three.
2. Check the venting and flame
The flame should be steady and blue, not yellow or flickering. A yellow flame can indicate incomplete combustion or ventilation issues.
3. Inspect the area around the unit
Keep the area clear and make sure nothing is blocking airflow or resting against the heater.
If you prefer not to DIY, a licensed plumber can usually perform annual maintenance quickly and inexpensively.
What to Do If the Pilot Light Goes Out
Pilot lights can go out occasionally due to air movement, gas interruptions, or routine maintenance. Relighting it is usually straightforward.
Basic steps (always check your unit's label first):
- Turn the control knob to "Off" and wait 5 minutes
- Turn the knob to "Pilot"
- Press and hold the pilot button
- Use the igniter or a long lighter to light the pilot
- Continue holding the button for 30–60 seconds
- Turn the knob to "On"
If the pilot won't stay lit, that's usually a sign of a failing thermocouple or gas supply issue—time to call a professional.
How Long Should a Gas Water Heater Last?
In Houston, a well-maintained gas water heater typically lasts 8–10 years. Regular flushing and inspections can push it toward the upper end of that range.
A little attention now saves a lot of inconvenience later.
