A heating split unit is a type of heating system that is designed to provide efficient and effective heating to a single area or room. It is composed of two separate units, an indoor unit and an outdoor unit, that are connected together by a refrigerant line. The indoor unit is responsible for providing the heat, while the outdoor unit is responsible for cooling the air. The indoor unit typically consists of a blower, an evaporator coil, and a condenser coil. The outdoor unit typically consists of a compressor, a condenser coil, and a fan. The two units are connected together by a refrigerant line, which is responsible for transferring the heat from the indoor unit to the outdoor unit. The heating split unit is an ideal choice for those who are looking for an efficient and cost-effective way to heat their home or office.