Eight Reasons Why You Should Choose Ductless Heating & Cooling over a Window Unit

Eight Reasons Why You Should Choose Ductless Heating Cooling over Window Unit

They have long been the HVAC norm in Europe and Asia, but ductless mini splits are becoming more popular in homes and businesses throughout the United States. Their rise in popularity is due to their many benefits and advantages over other popular HVAC systems, such as window air conditioner units. Read below to find out why you should choose ductless heating and cooling over a window unit, and then order a mini split system from ComfortUp today!

1. Single and Multi-Zone Heating Systems Available

Ductless mini split systems consist of an outdoor condenser or compressor connected to one or more indoor air conditioner units by copper wires and pipes, and they are available in single or multi-zone systems. A single-zone system features one outdoor unit connected to only one indoor unit, while a multi-zone system can feature up to eight indoor units connected to the same compressor. 

Single-zone systems offer climate control over the indoor area, room, or level where that one air conditioner is physically located. Multi-zone systems allow you to adjust settings on each air conditioner independently of each other, meaning that changing the settings on one air conditioner will not impact others on the same system. 

This is especially beneficial because it allows you to create different climate zones in the same building. It allows you to meet the temperature needs of all building inhabitants, whether of  a home or a business. Window units are technically single-zone heating and cooling systems, meaning that they do not offer the advantages of multi-zone ductless mini split systems. 

2. Versatility

woman relaxing in air conditioned room

Mini splits offer versatility in several different areas of performance and function where other HVAC systems such as window units cannot. One area is their installation location. Window air conditioners must be installed in a window, meaning they are not viable options to heat and cool windowless rooms such as basements or garages. Ductless mini splits can be installed in any room because they do not require windows. 

Even though they can be installed anywhere, certain areas benefit greatly from a mini split’s presence. For example, ductless mini split systems are ideal in basements. Basements typically suffer from temperature imbalances and inconsistencies because located below the ground. Basements usually do not have windows, making a ductless mini split the best way to regulate your basement’s temperature. 

They are also ideal in home offices. The environment created by a ductless mini split in a home office can stimulate focus and help preserve important paper documents. Additionally, mini splits work great in bedrooms. Sleeping in a cooler environment, between 60 ℉ and 67 ℉, has been shown to not only be comfortable, but offers health advantages by increasing your metabolism and melatonin levels. 

Ductless mini splits also offer versatility in regards to size. The “size” of an HVAC system refers to its ability to heat and cool a certain room or area. It is measured in tons and expressed in British Thermal Units (BTUs), which is the amount of energy required to increase the temperature of water by one degree Fahrenheit.


ductless mini splits for any room graphic


Window air conditioners usually only have the power to heat and cool small- to middle-sized rooms. On the other hand, ductless mini splits are designed for specific rooms in size, so there is certainly a model that can heat any area no matter its square footage. ComfortUp sells single-zone systems with BTUs ranging from 6,000 to 24,000 BTUs and multi-zone systems from 18,000 to 42,000 BTUs. 

3. Heating and Cooling Capabilities

Ductless mini splits can heat and cool an indoor area, whereas most window units are predominantly used to cool. Mini splits cool by taking warm air and blowing it over a series of evaporator coils within the air conditioner. The warm air is exposed to refrigerant, which absorbs the heat and sends it to the outdoor condenser through the pipes and wires. Cold air is then dispersed throughout the indoor area. 

Reversing the refrigerant flow allows your system to bring warm air into your home through the air conditioner rather than sending it outside. Mini splits can even heat and cool an indoor area in even the most extreme outdoor climates. Some systems can heat your home when the temperatures drop as low as -22 ℉!

4. Efficiency

Ductless mini splits are much more efficient than other HVAC systems such as window units. Mini split efficiency is measured in Seasonal Energy Efficiency Ratio (SEER), Energy Efficiency Ratio (EER), and Heating Seasonal Performance Factor (HSPF), while window unit efficiency is measured primarily in EER. Across the board, mini splits will have higher efficiency ratings than window units. 

Many mini split units sold by ComfortUp are Energy Star certified by the United States Environmental Protection Agency (EPA). Energy Star certifications are given to products that operate at high levels of efficiency with a reduced environmental impact in mind. This heightened efficiency means less wasted energy, which leads to lower energy bills and a reduced carbon footprint. Even though some mini splits may have higher upfront costs than other systems, this is offset by the short- and long-term energy bill savings. 

ductless mini split unit mounted

5. Aesthetic 

Window air conditioners often clash with the room’s aesthetic, as they can look clunky and out of place while awkwardly protruding into the room. They can also detract from any exterior aesthetic, as an air conditioner jutting out of the window can be an eyesore to passersby. Fortunately, ductless mini splits do not have to clash with any room’s aesthetic. 

Traditional ductless mini split air conditioners are wall-mounted units. These air conditioners sit somewhere on the wall and disperse air throughout the area, and their sleek discreet look does not take away any attention from the room’s other decorations but melds in with the decor. However, there are many other mini split options available for those who want an even more inconspicuous air conditioner. 

Slim duct mini splits look similar to traditional units but are slightly smaller and lighter. Ceiling cassettes are named for their resemblance to cassette tapes. They are very inconspicuous and sit virtually flat against your ceiling. Concealed mount mini splits are also inconspicuous, as they can be hidden from view. 

Finally, universal floor/ceiling mount options are perfect in homes or businesses with limited wall space availability. Regardless of your design needs or space restrictions, there is a ductless mini split for you!

6. Noise Level

Noise is one of the main complaints regarding window units, but ductless mini splits are the quietest air conditioner system available on the market today. Air conditioner sound is measured in decibels and window units hover around 43 dB. Mini splits can go as low as 19 dB, which is roughly the same volume as rustling leaves. 

quiet ductless mini splits graphic

This difference is very noticeable, as some window units can be noisy enough to impact your comfort level, and it may be hard to hear casual conversation, music, or sound from the television with a loud window air conditioner. Silence is another reason why mini splits are excellent heating and cooling options for bedrooms, as they do not disturb your sleep during operation. 

7. Improved Indoor Air Quality

According to the Environmental Protection Agency (EPA), the concentration of certain air pollutants is two to five times higher than outdoors. This is especially problematic because Americans spend roughly 90% of their time indoors. 

Poor indoor air quality can be directly linked to short- and long-term health problems. It can cause eye irritation, skin breakouts, headaches, nausea, and sinus congestion while also contributing to serious diseases such as cancer, cardiovascular disease, and respiratory illness. Several factors contribute to poor indoor air quality, such as dust, mold, mildew, dirt, debris, pet hair, and various other allergens or airborne particles.

Ductless mini splits have been shown to improve your indoor air quality. Inside of each air conditioner is a filter that removes any harmful airborne particles while the system heats and cools the area. It also removes airborne moisture to deter mold and mildew growth. This leads to significantly improved indoor air quality and the accompanying benefits of increased health, safety, and comfort. 

Mini split filters require periodic maintenance to continue purifying the air at a high level. Filter maintenance varies, depending on the filter type and model, but it generally involves removing it from the air conditioner and wiping it clean with a cloth. Filters will also need replacing periodically, but this depends on factors such as the specific filter model and your system’s usage level. 

change air conditioner filter

Maintaining and replacing your filter when necessary not only keeps your air quality safe and healthy, but increases your system’s efficiency. A dirty or old filter does not allow your system to operate at maximum capacity, which leads to wasted energy and increased energy costs. Consult your filter’s accompanying instruction manual or manufacturer’s website for specific maintenance and replacement instructions. 

8. Enhanced Control

Through smart technologies, ductless mini splits provide home and business owners with advanced climate control that window air conditions cannot offer. Most mini splits can connect to a Wi-Fi network and be controlled via smartphone application. This gives you the ability to adjust your system’s settings even if you are not physically located near it. 

This also allows you to control more than the temperature. You can adjust airflow, humidity, and more. Mini splits can also be paired with smart thermostats such as the Honeywell D6 for enhanced control and information. 

Through the app and/or smart thermostat, you can program your system to run in specific “cycles.” Temperature cycles usually involve increasing and decreasing temperature and airflow in timed intervals to increase efficiency. 

For example, many systems have programmable “sleep cycles” that decrease volume and temperature to create the ideal sleeping environment. Another common cycle involves decreasing power during the day when nobody is at home, whether for work or school, and increasing power to ensure that your home is cool upon your arrival. Many mini splits can run self-diagnostics tests in the event of a malfunction. They can also detect any temperature or airflow imbalances in the room and correct them accordingly. 

find an installer graphic

Order a Ductless Mini Split from ComfortUp Today!

ComfortUp proudly sells mini split systems and accessories from the industry’s most trusted brands such as Panasonic, LG, Boreal, GREE, Mitsubishi, and more. We also offer advanced warranty coverage through our extended product warranties, which cover maintenance and service costs in addition to part replacement. 

If you are unsure of your heating and cooling needs, don’t worry. We have a team of trained product specialists ready to help you find the best ductless system for your specific situation. Give us a call at 1-855-337-0001 or contact us online today! 

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