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Heating Your Water

Saving Hot Water Makes a Difference on Your Bill

On average, heating water accounts for about 19 per cent of most natural gas bills. But you can cut hot water costs by increasing your water heater's efficiency, changing a few habits and reducing wasted water.

Save with your water heater

  • Insulate at least the first two metres (six feet) of the hot water pipe and one metre (three feet) of the cold water pipe leading from your hot water tank
    • Safety requirement: Don't use pipe wrap or other insulation within 15 centimetres (six inches) of your water heater's draft hood (which prevents backdraft from entering your water heater through the vent) or flue exhaust vent (the pipe that lets fumes created by your water heater escape)
  • Once a year, drain about four litres of water from the valve at the bottom of your tank to remove any sediment that can gradually build up in your tank
  • Keep your hot water at 54°C (130°F) to save energy and avoid scalds

Learn more about natural gas water heaters.

Save in your kitchen

  • Fix dripping faucets right away—hot water that drips for a month could fill 16 bathtubs (about 3,600 litres)
  • Install aerators on your taps
  • Don't run your water continuously while washing dishes by hand
  • Wait until your dishwasher is full, and use the energy-saving cycle
  • Open your dishwasher's door to let dishes air dry instead of using the drying cycle

Learn how to save more energy in your kitchen

Save in your bathroom

  • Don't leave your hot water running while you shave, and turn it down while you shampoo 
  • Install low-flow showerheads and faucet aerators
  • Take a shower instead of a bath—you'll use far less water