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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