How often should a tankless water heater be maintained in Central Kentucky hard water?
Plan on annual maintenance unless your specific manual or water conditions call for more.
Why annual maintenance matters
Navien recommends annual maintenance because mineral deposits, also called scale, can collect on heat exchangers and other parts. Rinnai guidance emphasizes correct flushing steps, shutting down the unit properly, closing the correct valves, and inspecting filters.
Central Kentucky water can create scale, so tankless units in Richmond, Lexington, and nearby areas should not be treated as maintenance-free equipment.
What a plumber checks
- Manufacturer-specific flush procedure
- Service-valve setup
- Air and water filters
- Venting and combustion-related concerns where applicable
- Error history and performance complaints