At the University of Minnesota's heart lab, millions of dollars of tubing and wires and technology work to keep a living ...

Even with the Government's £7,500 grant, people in larger, older houses are still concerned whether an energy-efficient heat ...

People who have had heat pumps installed say there are implications in terms of cost, noise and the look of your home ...

I was worried whether it was going to make the house warm, I was worried it was going to cost a lot of money and worried if ...