Heat pumps have a twofold purpose – to provide heating when the mercury drops, while cooling things down during the summer. They’re pretty cool in moderate climates, although aren’t efficient at all in extreme cold climates. Researchers at Purdue University are working on a new type of heat pump that will usher in a change, as it is a whole lot more efficient than what we currently have in the market, potentially helping residents in cold climates to reduce their heating bills by 50%. This is made possible thanks to modification of the conventional vapor-compression cycle that is currently in use in standard air conditioning and refrigeration. Different approaches in developing the heat pump also goes a long way in it achieving such eco-friendly credentials, and we hope to see something tangible for the mass market in due time.