Descale tankless (hard water)
Why it matters
Hard water causes scale 2x faster; descaling prevents efficiency loss and failure.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another descale tankless (hard water).
How to do it
- 1
Turn off tankless heater at breaker.
- 2
Close inlet and outlet isolation valves.
- 3
Attach pump hoses to service ports.
- 4
Fill bucket with vinegar or descaling solution.
- 5
Run solution through unit 45 minutes.
- 6
Flush with fresh water 15 minutes.