REFRIGERANT SWITCH: A Greenheck DGX-P116 Makeup Air Unit. Greenheck Fan Corp. has begun offering direct ... use 50% less refrigerant, and transfer heat 40% more efficiently, Greenheck said.

These are the three types of ducted home heating systems: A furnace blows heated air through ducts, and the heated air is ...

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 ...

Samsung Electronics has announced the expansion of its air to heat pumps in North America, featuring a slim design and AI ...

Now available in the North American market, the manufacturer says these heat pumps work with new AI technology and reportedly ...