The Vertical Stack Hybrid Heating & Cooling Unit (VSHY) utilizes the same design as our classic Vertical Stack Heat Pump. Combined with a high efficiency hybrid chassis, the system combines two reliable technologies into one package for optimized cooling and heating performance. This system combines the features of a fan coil and heat pump system. Fan coil hydronic heating during winter and DX cooling during summer. The Vertical Stack Hybrid Heating & Cooling Unit with Integrated ERV (VSHYe) system is the market leader in integrated ERV hybrid systems.Duct connections are made at the top of the unit and ERV core, controls and chassis are all accessible from the front return air panel. Single point source power for entire unit and factory configured ERV for hassle free installation and start-up.