The idea of heat pumps being effective in cold climates of the Northern United States and Canada would have seemed implausible or even impossible just a decade or two ago. Historically, heat pumps were primarily associated with the southern United States, used occasionally to provide warmth during mild winter months. However, the landscape has dramatically shifted, with at least half a dozen manufacturers now introducing Cold Climate Heat Pumps (CCHPs) to the market. The journey to this point has been marked by significant technological advancements and changing market dynamics.
The core technology enabling CCHPs is primarily centered around compressor improvements, with manufacturers making substantial progress in developing variable
speed compressors with inverter technology that can operate efficiently at extremely low temperatures. Vapor Injection (VI) is a technology added to CCHPs to activate a broader operating temperature range and increase low-ambient temperature efficiency. The growing emphasis on
