Understanding the Functionality of Ductless Air Conditioners- How do they work?

Stay Connected

Ductless air conditioners function in the same way as regular air conditioning systems but they do not have ducts. This is facilitated by an indoor unit that works by blowing warm air from homes above a cold evaporator coil.  Refrigerants run through the coils and absorb heat from air before transporting it to the outside unit where the refrigerant places all the heat that is pulled from the air in the home.

Ducted Air Conditioners

With regular air conditioners, indoor units are located in the closet or attic. Ducts are responsible for carrying the home’s air to a central location. This is where it is cooled before returning it to the home through more ducts.

However, in a ductless system, a small indoor unit is in the actual room where it cools. Since the indoor unit is inside the room, this negates the purpose of air ducts. An indoor unit pulls the warm air from the room and blows back cold air into the room.

Cooling the Entire Home

Several indoor units can be connected to one outdoor unit in order to provide your entire home with air conditioning. There are various styles of indoor units that fit in different rooms.

Opting for Ductless Air Conditioners

Ductless air conditioners have several advantages when compared to conventional central air conditioning systems.

Easier Installation

If you want to add air conditioning to a home or room that does not have ducts, a ductless system can serve as a worthwhile alternative to the cost of installing ductwork.

Heating and Cooling

Many ductless systems feature heat pumps. This means they can cool and heat the home, which eliminates the need for an additional heater.


When each part of your home contains an indoor unit, it is possible to control the individual temperatures of different areas of the home.

Improving Energy Efficiency

Ductless systems do not lose cooled air as a result of duct leakage. Central air conditioners often experience duct leakage as a major problem. A significant percentage of the air moving through a duct system ends up being lost because of holes, leaks, and ducts that are poorly connected.


The cost of ductless systems is affected by factors such as the brand, number of blower units or evaporators, size of the system and energy efficiency.

Reasons for choosing Ductless Systems

  • Ductless units are suitable for homes within which a regular air conditioner would be impractical or too expensive to install. If your home is currently cooled with window units, you can upgrade with a ductless system as it is self-contained with air handlers that minimize air leaks.
  • A ductless unit can also be used to complement an HVAC system. If you convert an attic or garage into a living space or add another room to the home, you can use a ductless system to cool it rather than extending the ductwork.
  • Ductless units can also enhance temperature control in individual rooms. If one area of your home is exposed to a lot of sunlight, adding a ductless system to the room can effectively keep it comfortable without the hassle of lowering the entire household’s thermostat and subsequently increasing your electricity bill. Click here for Elmar ductless.


You can cool or heat single rooms or areas solely when they are occupied, which helps to save money and energy. With a thermostat for each zone, room occupants have the ability to change the temperature levels according to their own comfort needs.

In comparison to window units, a ductless system provides more options for placement. Air handlers can be mounted near the floorboards, hung from the ceiling or installed on your walls. Some manufacturers cater for recessed systems that are similar to traditional vents and benefits of ducted systems.


  • Installing a conventional ducted system typically requires numerous weeks.
  • Depending on the number of outdoor and indoor units that you need, a ductless air conditioner can be installed within one day.
  • Connections between outdoor and indoor units of ductless systems usually require a hole through the wall and it is not necessary for the installer to rebuild ceilings or walls around the ductwork. This means that you do not have to worry about your home being in a reconstructed state for long periods of time.


With conventional AC window units, the compressor along with the fan that cools it produces a lot of noise. The compressor in a ductless unit is situated outside the room that is being cooled.

Reducing Energy Loss

Ductless units are not susceptible to as much as energy loss as traditional systems. Several ducted HVAC units leak cool air whole moving it from the compressor to the interior of the home. Duct losses have the potential to minimize the efficiency of an air conditioning system drastically.

Additionally, most ductless systems have exemplary energy efficiency ratings and those that consist of inverter technology have the most impressive ratings among air conditioning products. Since a ductless air conditioner needs less electricity than many central heating and cooling units, you will also be able to cut down utility bills.

Environmentally Friendly

More energy efficiency reduces the carbon footprint. Ductless units utilize refrigerants that do not deplete the ozone.

Indoor Air Quality

The air ducts in conventional HVAC systems require regular cleaning. Allergens and dust may still remain after cleaning. A ductless system depends on the filtration system that helps to minimize the number of allergens, pollen, bacteria, and dust in your home.

Final Thoughts

  • If you are shopping around for an HVAC system for your home, a ductless air conditioner is a solution that is worth considering. Some older houses are unable to accommodate the amount of ductwork that a traditional heating and cooling system requires.
  • Some homes also have entire rooms or zones that do not get comfortable regardless of how many times you try to adjust the thermostat. You might be a homeowner who wants to upgrade the eco-friendliness and energy efficiency of your appliances around the home.
  • Whatever your reasons may be when searching for an air conditioning solution, investing in a ductless system is a step n the right direction. It is important to become familiar with the basics of a ductless air conditioner and how it works before making a purchase.
Share this:
Share this page via Email Share this page via Stumble Upon Share this page via Digg this Share this page via Facebook Share this page via Twitter