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Home > Service & Support > Troubleshooting > When using an instant electric water heater, what water pressure is required for the unit to start? Any recommendations?
Question: When using an instant electric water heater, what water pressure is required for the unit to start? Any recommendations?
Answer:

he minimum water pressure required for the unit to start heating normally is ≥0.03MPa.

If the household water pressure is lower than this value, the water heater may fail to start heating or produce no hot water.

Recommendation: For households with low water pressure, install a pressure booster pump—it will ensure normal operation.

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