Many Australian houses are ill-fitted for the coldest weeks of the year. But there are plenty of ways to retain warmth – and some heaters are much more efficient than others

Electric blankets, door snakes and closed curtains may not be as exciting as a new heater, but they can save South African households hundreds of rand a month.

Many Australian houses are ill-fitted for the coldest weeks of the year. But there are plenty of ways to retain warmth – and some heaters are much more efficient than others