While air conditioners are one of the most common ways to cool homes, there may be another, more energy-efficient way to cool down. Although most people don't think of it, heat pumps can work in ...

a heat pump or air conditioner? Here’s what you need to know about the two. Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more ...

Help is at hand though courtesy of [petey53], who made his own ground source heat pump for his Toronto house using a pair of window-mounted air conditioning units. A custom copper “trombone ...