Core Principle

The only cause of freeze damage in gas water heaters is the expansion of residual water when it turns to ice. Complete drainage eliminates this risk entirely.

Preparation Steps

• Turn off the gas supply valve

• Disconnect power (if applicable)

• Prepare a water collection container and dry towel

Five-Step Draining Process

Step 1: Close the Inlet Angle Valve
Locate and close the cold water inlet valve on the water heater to cut off the water supply.

Step 2: Open a Hot Water Faucet
Open any hot water faucet in the home to release pressure in the pipes.

Step 3: Open the Pressure Relief Valve

1. Locate the pressure relief valve on the water heater

2. Place a container underneath

3. Open the pressure relief valve to begin drainage

Step 4: Natural Drainage
Keep the pressure relief valve open until water stops flowing from the hot water faucet, indicating that the main drainage is complete.

Step 5: System Reset

1. Close the pressure relief valve

2. Turn off the hot water faucet

3. Check all connections to ensure there are no leaks

Important Notes

• Do not leave the area during drainage; monitor the process continuously

• Different water heater models may have varying designs

• If unfamiliar with the process, refer to the product manual or consult a professional

Conclusion

By following these five steps, the water inside the heater can be fully drained, preventing freeze damage during winter disuse. Complete drainage is the most effective method to eliminate the risk of freeze-related damage.

Safety Reminder: Always ensure the gas supply valve is completely closed before starting the procedure.