and it means you might see these heat pumps in businesses, schools or multifamily housing. The All-Weather model has an MSRP of $3,800 -- a lot more than your typical window AC, but for ...

When you’re buying a window AC or a portable unit, you usually need to choose one based on the size of the room you plan to use it in. But selecting a heat pump system is a little more ...

This means that making AC units more efficient is even more ... that uses ductless systems like mini-splits, air-to-air heat pumps, and window and portable A/C units. "It's really a small subset ...

A heat pump is a combined heating system and air conditioner. This single unit can ... mode is very efficient within a certain temperature window. Below that window, its efficiency drops.

Because heat pumps are two-in-one heaters and air conditioners, she has abundant cooling for the first time, allowing her to ditch the clunky and less-efficient window AC units she used before.