Because natural gas is colourless and odorless, gas companies add a chemical called mercaptan. Mercaptan has a strong, sulfur-like or "rotten egg" smell that helps in the detection of gas leaks.
When natural gas service is disrupted, we act quickly to restore it. We will relight crucial customers like hospitals and senior centres first, and then all other customers. Although disruptions are usually short-lived, a gate station or pipeline may require complex repairs, and you may be without service for several hours. While you're waiting, listen to the radio for current information and instructions from Manitoba Hydro and Emergency Measures Organization (EMO).
Even without your natural gas furnace operating, the building will stay warm for several hours if you keep doors and windows closed. Before the building starts to cool down, start your alternate heat source, such as an electric heater. Electric lights are a good heat source too. Keep combustibles away from all alternate heat sources.
Wood-burning fireplaces and stoves will safely keep you warm, as long as they are adequately ventilated and there's no risk of carbon monoxide buildup.
Dress in layers. Make sure to cover your head and feet, where body heat is lost first.
When natural gas service is disrupted during winter, freezing temperatures could affect your water pipes. Keep a tap open and let water run slowly.
If you need to evacuate, shut off the main water valve, open all taps and flush toilets several times to empty pipes. Add some antifreeze to all sinks, tubs and toilets. Cover your main water valve and inlet pipes with blankets. Turn off the natural gas supply and drain your water heater.
Assemble an emergency kit that includes a flashlight and portable radio, fresh and spare batteries, candles, matches, a manual can opener, bottled water, food that doesn't require cooking or refrigeration, pet food, a first aid kit, medicine, prescriptions, and a list of emergency phone numbers. Pack extra clothing, blankets, essential toiletries, and personal documents and family identification.
Let us know where you are. Leave a note on the front door telling Manitoba Hydro where you can be reached. If you're planning to be away for even a day, tell a neighbour, friend or local family member, and leave a key with them. We must be able to access your home to restore services and light your pilot lights.
Open your taps and then turn on the main water valve. Flush toilets, drains, sinks and tubs to dispose of antifreeze. Fill and turn on your water heater. If water lines have frozen, you might have cracked pipes or fittings. If they burst or leak when they thaw, there could be extensive water damage. Have someone stay in the house to check the pipes periodically. Call your plumber if your pipes are damaged.