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 ...

Heat pumps are air conditioners that can go in reverse ... A survey (PDF) by the heat pump supplier Mitsubishi Electric Trane HVAC US found that 44% of homeowners had a good understanding of ...

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 ...