Help is at hand though courtesy of [petey53], who made his own ground source heat pump for his Toronto house ... and the cold side is a long length of pipe buried in the garden.

Here's what you should know about how heat pumps work, what kinds of heat pumps are out there, and how to decide if a heat ...

AIR SOURCE HEAT PUMPS Average cost ... They circulate a mixture of water and antifreeze around a ground loop pipe. Heat from the ground is absorbed into the fluid and then passes through a ...