A hybrid multi-position air handler can be installed vertically or horizontally and works with various outdoor units. The MRCOOL 24,000 BTU DIY Hybrid™ is a breakthrough for DIYers. These units are designed to replace old furnaces while using existing ductwork. You can find them in our Accessories and specialized unit categories. They offer a flexible path to upgrading a home to a modern heat pump system. Its versatility makes it a favorite for renovation projects.