The 17 SEER 18,000 BTU Daikin heat pump wall mount mini split ductless a/c system is an affordable solution to both heating and cooling needs without having to run ductwork. The outdoor condenser RXB18AXVJU, FTXB18AXVJU system is integrated with an inverter variable-speed compressor, delivers up to 17 SEER and 9 HSPF with an EER of 10.5 & has the capacity required to maintain the comfort you demand while conserving energy up to 30% or more. This is all backed with a 10 Year All Parts Warranty, which is one of the strongest in the industry. Daikin is a global leader for indoor comfort, with millions of systems installed throughout the world.