When customers are looking for new HVAC installations, they’ll often come across the option to have a ductless mini split installed. These comfort systems, which provide both heating and cooling to large areas without having to use pre-existing ducts, aren’t as familiar in the US as conventional central HVAC systems. People might recall seeing ductless mini split units hanging on walls and wondering exactly how they worked, but wouldn’t have thought about the technology in their homes.
Because of this unfamiliarity, it’s easy to think that ductless mini split heat pumps are new technology that only recently hit the market. Although ductless mini splits aren’t as old as central air conditioners, the technology has been around for many decades. In fact, ductless heating and cooling was invented in 1959, which makes it not much older than the invention of the window AC unit.