With units such as the Lennox Mini Split and Mitsubishi Mini Split reaching a SEER score as high as 22 and 26, A ductless heat pump is an extremely efficient and environmentally friendly option. Because of the latest INVERTER technology they can operate effectively down to -13º F in the winter months. These models give true year-round comfort from a single system. Not only do they save energy in situations when the central air just isn't enough, the units themselves are more efficient than even the most flawlessly performing central ac, because there are no ducts involved. In a duct system, a certain amount of energy is lost just to force the cool air through the ducts, and into the space where you want it.
This loss of energy may account for over 30% of the total energy consumed to cool the space. Sometimes, only a small room or space requires ductless air conditioning. Perhaps you have added addition or bonus room which does not connect to your central ductwork. Or a sun room that just gets a little too warm for your comfort. Mini split air conditioners and mini split heat pumps are a great solution for that home office that needs a little extra circulation, or that small studio you are renting with no central AC. So, you are using only the power you need to meet your air conditioning and heating needs.
Furthermore, the split units themselves are far more efficient than the window units of the past, most popular models are Energy Star Rated. Mini split air conditioners and mini split heat pumps cool and heat more space per BTUH (British Thermal Unit per hour) than portable or window unit ductless systems. Makers such as Mitsubishi and Lennox are producing ductless climate control products that are on the forefront of technology, providing more efficient products that work even more reliably.