Electric water heaters typically last 10 to 15 years, while gas water heaters last 8 to 12 years. Both can be extended several years with proper annual maintenance (flushing, anode rod inspection, T&P valve testing), and shortened by hard water, high pressure, or neglected sediment buildup.
Lifespan factors
- Water hardness — higher hardness shortens life
- Static water pressure — above 80 PSI shortens life
- Annual flushing and anode rod care
- Quality of original installation
- Frequency of use
Extend the life of yours with regular water heater maintenance, and consider a water softener if you’re in a hard-water area.