Pedal to a cold drink... via TreeHugger . Home trainer with heat pump. In the left tub is a bottle of beer, but at the required pedaling to make the beer cool, it's likely to give up before. A good example to collect personal experience with the princip of a heat pump. Read more | Permalink | Comments | Read more articles in Green | Digg this! Treehugger : Pedal Your Way to a Cold Beer ...DVICE : An exercise bike that chills beers makes exercise more appealing ...blogs : Hack A Day,DVICE,Treehu