Giant Normal Condensation / Cold Start Moisture

Condensation or water pooling on top of or around the base of the water heater shortly after installation

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Possible Causes

Cold incoming water and humid air, High efficiency burner cooling flue gases, Uninsulated cold piping sweating

How to Fix / Troubleshooting

Safety first: Ensure any water is indeed condensation and not a leak from fittings or tank.

  • Observe pattern: If moisture appears only during heavy use or initial heat‑up and then dries, it is likely condensation.
  • Insulate pipes: Insulate cold water lines above the Giant heater to reduce sweating.
  • Ventilation: Improve room ventilation to lower humidity.
  • Monitor: If water accumulation increases or persists, re‑evaluate for leaks.
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Repair Difficulty

Very Easy 1/5
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