2. Turn down your thermostat
Do-it-yourself: Setting your thermostat back by 4°C to 6°C for eight hours each day can shave up to 15 per cent off your heating bill. The Canadian Centre for Housing Technology finds it most efficient to keep your home at 22°C when you’re at home in the daytime and at 16°C to 18°C otherwise. Contrary to popular belief, your furnace won’t work extra hard to bring temperatures back up.
Big fix: Try a thermostat with a brain: some will track your daily home-and-away habits, set the temperature accordingly and are programmable using your smartphone. (One, called the Nest, is even designed by the minds behind your favourite Apple products.)