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Home > Service & Support > Troubleshooting > What are the length limits for the exhaust pipe of a gas water heater?
Question: What are the length limits for the exhaust pipe of a gas water heater?
Answer:

1. Max length: 3m straight pipe;2. Each 90° bend reduces length by 0.5m;3. Slope 1–3° outward to prevent rain backflow;4. Exceeding limits causes poor exhaust and safety risks.

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