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Hot water uses about 30% of the energy consumed yearly in the average home, so be sure to:

• check regularly for leaks — a leaking hot water system wastes water and uses energy continually
• install a water restrictor or low-flow showerhead
• check hot water taps for leaks
• insulate hot water pipes for at least one metre from the storage heater to retain heat
• have a short shower instead of a bath
• switch off the hot water system when going away for more than two weeks
• fill the kettle or jug from the cold tap and only fill with the amount of water needed.