With winter settling in across the whole country, one expert says the best way to stay warm inside this winter is by making a cheap and easy thermal blanket for windows and doors.
Dr Nelson Lebo, Eco Design Advisor for the Palmerston North City Council, said it was important to have a good heater in your home, but even more important to reduce the heat loss from your windows where you can lose up to a third of your heat.
This winter hack is a genius invention called a thermo blanket.
Simply measure up your window or French doors, cut a piece of timber that fits snug in between the frame and attach a thermal blanket to it which will insulate the area locking the heat inside.
"This will cost you under $40 with a brand new duvet and duvet cover from Kmart, but if you get a woollen blanket from an op shop it will cost even less."