Sounds obvious, doesn't it? Close your windows if it's cold outside...

But you might be surprised just how much heat is escaping from forgotten air vents. Before you reach for the thermostat, hunt around your house for potential heat convicts.

A bathroom window still open from shower time? Close it. Kitchen window ajar because the tumble-dryer was on? Close that too. Letting some air into the bedroom? Shutter up!

Even when your windows are closed, heat still escapes through the glass. Heat-loss doubles if you don’t have double glazing.

Thankfully, there’s a quick and easy way of limiting this – draw your curtains at dusk!

Curtains are effective forms of insulation. Draw them at night to keep in the heat, and open them in the morning to let sunlight heat your room.

Are there rooms you hardly ever use? The spare room? The downstairs loo?

Make sure you’re not heating them unnecessarily. Turn off the radiators and keep the doors closed.

When you leave home for the day, close all the doors to keep the heat in. Then, when you come home, you’ll be greeted with lovely warm rooms!

What do you get if you cross a sheep with a kangaroo? Answer: the most effective way of reducing your carbon emissions in the home...

Next time you’re feeling the cold reach for a woolly jumper, not the thermostat!

Turning your heating down by just 1°C can save up to 300kg of carbon emissions every year. Even remembering to switch the heating off the timer when you’re out can dramatically reduce your carbon footprint.

Ready to get even harsher with your heating? Take an hour off the timer – so radiators go off 30 minutes earlier in the morning, and come on 30 minutes later at night.

Want to get really ruthless with your boiler?  Turn your hot water down to 60°C – and take an hour off the timer. You’ll not only save carbon emissions, you’ll save loads of money on your next heating bill!