Can an energy-efficient mini-split/ductless air conditioner be installed in older homes without existing ductwork?

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Can an energy-efficient mini-split/ductless air conditioner be installed in older homes without existing ductwork?

Can an energy-efficient mini-split/ductless air conditioner be installed in older homes without existing ductwork?

Many older homes were built without central heating and cooling systems, making it difficult to install ductwork for traditional air conditioning units. However, advancements in technology have introduced energy-efficient mini-split/ductless air conditioners as a viable option for these homes. In this blog post, we will explore whether these systems can be installed in older homes without existing ductwork and discuss their benefits.

Understanding mini-split/ductless air conditioners

A mini-split/ductless air conditioner is a cooling system that does not require ductwork for distribution. Instead, it consists of two main components – an outdoor condenser unit and one or more indoor air handlers. These components are connected by refrigerant lines, which carry the cooled air from the outdoor unit to the indoor units.

Mini-split/ductless systems have gained popularity due to their energy efficiency, flexibility, and ease of installation. They can provide both heating and cooling, making them suitable for year-round use. Additionally, their compact size and zoning capabilities allow for customized temperature control in each room.

Installation in older homes

The absence of existing ductwork in older homes may seem like a hurdle, but it is not insurmountable. In fact, it is one of the reasons why mini-split/ductless systems are a great option for these homes. The installation process is relatively straightforward and typically involves the following steps:

  • Assessment: A professional HVAC technician assesses the home to determine the best locations for the indoor units and the outdoor unit.
  • Drilling holes: Small holes are drilled in the walls to connect the indoor and outdoor units using refrigerant lines and wiring.
  • Mounting the units: The indoor units are mounted on walls or ceilings, depending on the homeowner’s preference and the layout of the rooms.
  • Connecting the units: Once the units are in place, the refrigerant lines and wiring are connected to establish the link between the indoor and outdoor components.
  • Testing and commissioning: The system is thoroughly tested to ensure proper functionality, and any necessary adjustments are made.

It is important to note that the installation process may vary depending on the specific requirements of the home. Therefore, it is recommended to consult with a professional HVAC contractor to determine the best approach for your particular home.

Benefits of mini-split/ductless systems

Mini-split/ductless air conditioners offer several advantages for older homes without existing ductwork:

  • Energy efficiency: These systems use inverter technology, which adjusts the speed of the compressor to match the cooling needs of the room. This leads to energy savings and reduced utility bills.
  • Zoning capabilities: Each indoor unit can be controlled independently, allowing for personalized comfort in each room. This eliminates the need to cool unoccupied areas unnecessarily.
  • Improved indoor air quality: Mini-split/ductless systems have advanced filtration systems that remove dust, allergens, and other pollutants from the air. This is particularly beneficial for homeowners with respiratory issues.
  • Quiet operation: The indoor units operate quietly, providing a peaceful environment in the home.
  • Easy installation: As mentioned earlier, the installation process is relatively straightforward and can be completed without major disruptions to the home.


For older homes without existing ductwork, mini-split/ductless air conditioners offer an energy-efficient and hassle-free cooling and heating solution. The installation process is simple and can be tailored to accommodate the specific needs of each home. With their numerous benefits, these systems are a viable option to consider.

If you are interested in installing a mini-split/ductless air conditioner in your older home without existing ductwork, contact our experts at [INSERT CALL FOR QUOTE: 1.855.920.1857]. They will assess your home and provide you with a customized solution that meets your cooling and heating needs!

If you have any questions or require further information, do not hesitate to give us a call. We are here to help you!