No ductwork? No problem. Incredibly quiet, sleek and energy-efficient, ductless split systems are the smart way to cool rooms without ductwork-even those without windows or exterior walls. The entire line, including hard-to-find 115v wall-mounted models, utilizes Inverter Technology which allows systems to reach the desired temperature faster, maintain it more accurately, and reduce energy costs. SEER ratings up to 22. 0. If you have one or more rooms without exterior walls or windows, a wall-mounted ductless split system will work beautifully. The indoor air handler is sleek, unobtrusive and quiet. You need only a 2" clearance from the ceiling, so you'll have lots of placement options. All systems come with a remote control, so even units high on the wall are easy to operate.