Split system heating and cooling is a type of HVAC system that uses two separate units to provide both heating and cooling. The two units are connected to each other via a refrigerant line, and each unit is responsible for a different function. The outdoor unit is responsible for the cooling, while the indoor unit is responsible for the heating. This type of system is highly efficient, as it can provide both heating and cooling from the same system. It is also cost-effective, as it eliminates the need for separate heating and cooling systems. Additionally, it is easy to install and maintain, making it a popular choice for many homeowners. Split system heating and cooling is a great way to keep your home comfortable all year round.