Split unit heating is a type of heating system that is composed of two separate units: an indoor unit and an outdoor unit. The indoor unit is responsible for distributing heated air throughout the home, while the outdoor unit is responsible for generating the heat. This type of system is typically used in homes that have limited space, as the two units can be placed in different areas of the home. Split unit heating systems are also known for their energy efficiency, as they can be adjusted to provide the desired temperature while using less energy than other heating systems. Additionally, these systems are relatively easy to install and maintain, making them a great choice for homeowners who want to save money on their energy bills.