Ductless systems have made major inroads into homes over the past few years. These variations on heat pumps allow for a home to enjoy cooling and heating in different rooms without requiring either space-consuming ductwork or inefficient and unattractive window ACs.
A ductless system (also called a ductless mini split heat pump) works by having an outdoor unit connected to several small wall-mounted air handlers distributed around the house. Each air handler has its own refrigerant coil and blower fan to send heated or cooled air directly into the living space. Ductless systems have high energy efficiency, lead to better indoor air quality, and allow for zoned heating and cooling since only the air handlers in occupied rooms need to run. If you’re considering this upgrade, start by understanding current AC efficiency ratings to compare system performance.
How can homeowners spot when a ductless mini split needs repair?
- Watch for weak or inconsistent airflow from wall-mounted air handlers.
- Notice unusual sounds like buzzing, rattling, or loud clicking during operation.
- Be alert to unusual odors, musty or burning scents can signal mold or electrical issues.
- Track temperature fluctuations that indicate the system isn’t maintaining set levels.
- Consider professional help if you see leaks, liquid around units, or error codes displayed.
Another major benefit is that ductless systems are flexible. You can put them to work in your home (even if you already have ducts) in a variety of ways. Here are several.