MRCOOL DIY-18-HP-C-230C25 Single-Zone Ductless Heat Pump System is a high-efficiency HVAC solution designed to provide reliable heating and cooling for individual rooms or spaces without ductwork. It works by transferring heat between the indoor and outdoor units using advanced heat pump technology, delivering efficient cooling in summer and dependable heating in winter. https://www.partshnc.com/mrcool-diy-4th-gen-condenser-diy-18-hp-c-230c25