Tank Water HeaterEmergency2025-12-18
Water Heater Emergency: Shut-Off Steps
Know how to shut off your water heater fast to prevent flooding or a safety hazard.
In a water heater emergency — major leak, no shut-off, or a safety concern — knowing the shut-off sequence protects your home.
The shut-off sequence
Close the cold-water inlet valve on top of the tank. For electric, switch off the breaker; for gas, turn the gas control to OFF. This stops refilling and heating safely.
After shutting off
Drain the tank via the bottom valve to a floor drain if needed, place towels/pans, and call for emergency service or replacement.
Key takeaways
- Close the cold inlet valve first
- Electric: breaker off; Gas: control to OFF
- Drain to a floor drain if flooding
- Keep our number handy: 778-909-5731
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Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..
Frequently asked questions
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