iDuctless HVAC systems (or mini-split systems) are beautifully efficient and provide consistent room comfort.
They're also exceedingly energy-efficient. "In the average house, you're losing 25 percent or more of your energy to ductwork," says James Bowman, National Technical Manager for RectorSeal and a 20+ year veteran of the HVAC industry. "Simply by removing the ducts, you end up with a more efficient system.
Ductless models also have inverter-driven compressors, which speed up and slow down based on the needs of the system instead of shutting off entirely like traditional HVAC compressors do. You consume a lot of energy during compressor start-up.