What is Ductless Air Conditioning?

If you understand the English language, then intuition may be enough for you to figure out what a “ductless air conditioning” is, it’s an air condition system that has no ducts. But how can this be possible? At S&L Prime, we’ve worked with thousands of different air conditioning systems in Maryland, both with and without ducts, and we’ve found that most are shocked to learn that there are ductless systems, which is why we took the time to write this blog today.


How Exactly Do Ductless A/C Units Work?

Ductless units, essentially, cool your home or commercial space the same way a system with ducts does. However, traditional A/C units create all of their cool air from one centralized location, and push this air through a series of ducts and vents set up throughout. Ductless systems, rather than having a single centralized unit, have separate units that cool each room individually.

Both Single and Multi-Zone Systems

Ductless systems can be set up with just one or multiple indoor A/C units connected to a single exterior compressor. Ductless HVAC systems are perfect for room additions, sunrooms, garages, and older homes.

Single-Zone Systems

Both ductless air conditioners and ductless heat pumps can be set up for individual rooms, with just a single indoor unit and outdoor compressor. The compressor carries power and refrigerant to the interior unit via a small pipe, ensuring a minimal impact on your home.

Multi-Zone Systems

Just a single outdoor compressor can provide enough power for up to five indoor A/C units. Each unit can be controlled by its own remote, this is the primary advantage of using a multi-zone system. You can alter the temperature of your home/business room by room, ensuring everyone can be comfortable.

Consult with a Professional Maryland HVAC Company

Ductless A/C systems can be more energy efficient and can be outfitted with the latest in smart-home technology. While traditional duct systems will probably always be around, most new HVAC innovations are being made in the ductless sector.


If you’re interested in learning more about ductless HVAC systems, or any kind of HVAC system, give us a call. We’ve been helping homeowners and business owners in Maryland for years, and hope to do so for many more. Our team of professional Maryland HVAC technicians is standing by, just waiting to help.