Tankless water heaters require annual maintenance to ensure optimal performance, and should be flushed and descaled once a year—every 6 months in areas with hard water—to maintain efficiency and prevent damage.
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🔧 Why You Need to Flush and Descale a Tankless Water Heater:
1. Remove Mineral Scale Buildup:
Hard water contains calcium and magnesium, which contribute to scale formation within the heat exchanger. This buildup can hinder water flow and diminish heating efficiency.
2. Protect the Heat Exchanger:
Excessive scale acts like insulation, forcing the unit to work harder and increasing the chances of overheating or premature failure.
3. Maintain Efficiency:
A clean heat exchanger not only heats water quickly and efficiently but also helps you save on energy bills.
4. Prevent Error Codes & Damage:
Scale buildup can trigger warning codes, decrease water pressure, and ultimately damage components if not addressed through routine tankless water heater flush procedures.
5. Extend System Life:
Regular descaling helps to preserve the system’s internal components, ensuring your tankless unit operates smoothly for 15–20 years or more.
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🧪 How We Flush and Descale (Brief Overview):
• Turn off power/gas and cold water supply.
• Connect a flush pump and hoses to the service valves.
• Circulate a descaling solution (typically vinegar or a commercial cleaner) for 45–60 minutes.
• Rinse thoroughly with clean water before restoring the system.
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🗓️ How Often:
• Annually for most homes.
• Every 6 months if you have hard water and no water softener.
Regular annual maintenance for your tankless water heater protects your investment, maintains performance, and avoids costly repairs in the future.