The Benefits of Going Ductless

For industry insiders, the benefits of ductless HVAC systems are well known, especially when it comes to retrofitting older homes without pre-existing ductwork.  Many do not realize, however, that in addition to being an extremely cost-effective solution for older homes, ductless mini-split HVAC systems can be a valuable energy saver for a variety of applications.

First, a little background.  Most houses built after the 1970s or so have some type of central HVAC unit with a series of interconnected ducts that push air into the interior spaces.  Usually, these ducts run under the floors, though in some cases they run through the attic.

Retrofitting an older home to include ductwork is similar to having highly invasive surgery.  In addition to running new supply lines and returns, installers may have to rip out the floors in some areas, cut large holes in the walls and/or ceilings to run the ducts.

It’s easy to see how the costs and inconveniences can quickly spiral out of control in a situation such as this.  For this and several other reasons, a ductless mini-split HVAC system can be a viable cost-saving solution.

One reason is that, by definition, a ductless mini-split does not have ductwork.  As far as the installation is concerned, this makes a ductless mini-split much easier and therefore less expensive to install.  There’s no need to tear up walls or floors; instead, the contractor only has to install the main condensing unit outside the home and then cut small, two- to three-inch holes in the outside wall for refrigerant lines.

Also, since there is no duct loss associated with a ductless system, they are much more energy-efficient.  Duct loss refers to the energy loss that occurs from having conditioned hot or cold air escape from the duct.  It also refers to how hot and cold energy is transferred from the surrounding air into the duct.  There are a lot of studies out there that have shown that duct loss accounts for over 30 percent of the total costs associated with heating or cooling a home.

It’s also worth pointing out that a ductless system can allow more specific controls over the temperature levels inside a home.  In fact, some ductless mini-split systems can be configured to run up to eight individually controlled zones from a single condensing unit.  Each zone can have a separate thermostat included, which can result in savings on energy costs because it allows you to only condition the air in the rooms you use the most instead of the entire house.

Another factor worth considering is that, since a standard HVAC system with ductwork mostly just recirculates the air inside a home, a ductless mini-split is a cleaner solution.  A variety of harmful contaminants can accumulate inside the ductwork over time and, unless it is cleaned on a regular basis, the result can be poor indoor air quality.

Ductless mini-split systems bring air in from outside, and many utility companies offer rebates on having these types of energy-efficient systems installed.  If you are interested in learning more about having a ductless mini-split installed in your home, bonus room, garage, or studio, please call one of our offices or email info@greendothvac.com.  

Green Dot Heating and Air is committed to providing a consultative, transparent approach, driven by innovative technology and a diligent work ethic.  With a team of highly trained and versatile technicians, a focus on helping clients make informed decisions, and a commitment to deliver substantial value, Green Dot Heating and Air is a leader in the coastal communities of North and South Carolina.  To arrange a free at-home consultation, a repair/installation, or simply find guidance about the nuances of modern heating and air conditioning systems, call us or visit www.greendothvac.com.

Our specialist will perform the necessary repairs right in your home.

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