
When the hot water quits, the first question is whether it can be fixed or whether it's time for a new heater. Here's how we think about it.
Start with the age
Most tank water heaters last somewhere around 8 to 12 years, depending on water quality and maintenance. The manufacture date is usually printed on the label or encoded in the serial number. If your heater is in that range or older, a major repair is often money better spent on a new unit.
Problems that are usually repairable
- No hot water from an electric heater: often a failed heating element or thermostat
- A gas heater whose pilot won't stay lit: often a thermocouple or ignition part
- Water that isn't hot enough: may be a thermostat setting, a bad element or sediment
- A leak from a valve or pipe connection, not the tank itself
Signs it's time to replace
- Water leaking from the tank itself. A leaking tank can't be repaired.
- Rusty water coming only from the hot side, which can mean the tank is corroding inside
- Loud rumbling and popping from heavy sediment buildup in an older unit
- Repeated repairs, or hot water that no longer keeps up with your household
Help your heater last longer
Draining a few gallons from the tank to flush out sediment, testing the temperature and pressure relief valve, and having the heater checked during routine maintenance can all extend its life.
Need a Hand?
Montani Mechanical Group's licensed plumbers serve homes and businesses across Charleston, WV. Related services: