...AND CHEAPER...:

Theirs is among the largest heat pump units in the world. Heat pumps work by compressing gently warmed refrigerants to raise the temperature of these fluids. That heat can then be passed on to homes or industrial machinery.

Heat pumps require electricity to work but can produce around three or four kilowatts of heat for every kilowatt of power they consume, making them highly efficient. Plus, some designs can provide cooling as well.

Heat pumps are increasingly popular with some home owners but domestic devices are relatively small and tend to have outputs of several kilowatts or so. MAN ES's biggest commercial heat pump is thousands of times more powerful - with a total heating capacity of 48 megawatts (MW).

Tweet   @brothersjudd