HEAT PUMPS are very much in demand and everyone is talking about them but the technology is nothing new. (They’re basically a fridge-freezer in reverse.) Recent advances in that technology has made heat pumps much more efficient and therefore much more desirable especially as homes become better insulated, electricity greener and a greater desire to escape our reliance on fossil fuels. The idea of heat pumps is over 150 years old and simply they obtain more than 75% of their heat from nature - be that the air (Air Source Heat Pumps), the ground (Ground Source Heat Pumps) or water (Water Source Heat Pumps) and the rest from electricity which is from more sustainable/ renewable sources every year. Heat is collected from nature using a fan, bore holes or pipes buried under the ground (or in water) which is transferred to a refrigerant which has been expanded so super cold (- 40C), it is then compressed so it becomes a gas with lots of energy/ heat and via a heat exchanger hot water heats your home the same as any traditional boiler.