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Home > Service & Support > Troubleshooting > How to anti‑freeze if unused for long in winter?
Question: How to anti‑freeze if unused for long in winter?
Answer:

1. Close gas/water inlet, cut power;2. Open drain valve and hot tap to empty;3. Close valves after draining;4. Auto anti‑freeze model: Keep power on;5. Insulate outdoor exhaust pipe.

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