A split unit furnace is a type of heating system that uses two separate components to provide warmth to a home. The first component is an outdoor unit, which contains the compressor and condenser. This unit is responsible for transferring heat from the outside air into the home. The second component is an indoor unit, which contains the blower and evaporator. This unit is responsible for distributing the heated air throughout the home. Split unit furnaces are often used in homes with limited space, as they are more compact than traditional furnaces. They are also more energy efficient, as they can be adjusted to provide just the right amount of heat for a given space. Additionally, they are relatively easy to install and maintain, making them a popular choice for many homeowners.