HVAC appliances either cool or heat, not both. That used to be true, but now it's a myth, thanks to ductless mini-split systems like Unico iSeries. In the winter, a single iSeries outdoor unit harvests heat from outdoor air and sends it indoors. In the summer, it does the opposite, taking heat from the home and expelling it outside. All the while, the technology maximizes efficiency: Rather than turning off and on in a cyclical, power-hungry pattern, the iSeries saves energy by running continuously at a low power level. Eco-friendly, easily installed, and able to be zoned, the system offers both heating and cooling for year-round climate control, in one room or the entire house, for either new or existing construction.