Disadvantages of Split AC Systems: An Inside Look

Split air conditioners (ACs) have revolutionized the world of home cooling with their efficiency, quiet operation, and sleek design. However, they also come with certain drawbacks that potential buyers should consider before making a purchase. In this article, we will explore the disadvantages of split AC systems and highlight the installation challenges and maintenance requirements.

The Increased Initial Costs

One of the primary disadvantages of split AC systems is the higher initial investment. While traditional window ACs can be quite affordable, split ACs involve both indoor and outdoor units. The cost of purchasing these units and professional installation can sometimes exceed that of a package unit. However, for those seeking long-term savings on energy bills, the higher initial cost of a split AC might be worth considering.

Installation Challenges

The installation process for split ACs can be complex and requires careful planning. Unlike package units, where the entire system is housed in a compact cabinet and can be installed relatively quickly, split ACs need to be perfectly positioned and connected. This involves intricate piping and careful alignment, which often necessitates the involvement of a professional HVAC technician. Therefore, it is crucial to factor in the time and cost associated with professional installation.

Maintenance Requirements

Maintaining a split AC system is a critical but often overlooked aspect. Regular cleaning and servicing of the filters and outdoor unit are necessary to ensure the system operates efficiently and maintains good air quality. Failure to do so can lead to reduced performance, higher energy consumption, and even health issues. Homeowners should be prepared to invest time and resources in regular maintenance to prevent these potential problems.

Limited Portability

Another significant disadvantage of split AC systems is their immobility. Once installed, these units are fixed in position and cannot be easily moved around. This can be a drawback in spaces where mobility is required, such as multi-room homes or commercial settings. In such situations, a window AC or portable units might be more suitable. However, for those in need of cooling in a single room, the immobility of a split AC is not a major issue.

Space for Outdoor Units

Proper installation of a split AC system also requires sufficient outdoor space for the compressor. This can be particularly challenging in smaller apartments or homes where outdoor areas are limited. In these cases, alternative cooling solutions such as portable units or ducted systems might be a better fit. It is important to assess the available space before deciding on a split AC installation.

Personal Experience with Split ACs

Over the years, I have installed numerous split AC systems, both for residential and commercial use. My own home exclusively uses split systems, and my sister has a package heat pump on her roof in Phoenix, Arizona. Installing a package unit is a relatively quick and straightforward process, taking only about 4 hours and a crane. On the other hand, the ductless split heat pump I recently installed at a rental home with no pre-existing wall openings provided the most energy-efficient solution. It was also the lowest cost, at $629 including lineset from Amazon, and offered a 12,000 BTU capacity on 120 volts, with tubing installed through a window. This unit is not only energy-efficient but also completely portable, making it a versatile choice.

Another installation I completed was a 18,000 BTU heat pump in a neighbor's home. This unit, with a 17 SEER rating, provides 17,000 BTU of cooling per kilowatt of power used, making it a highly efficient and effective cooling solution. Most single-speed air conditioners available today have SEER ratings of 15 or 18, unless they are based on variable-speed compressors. Therefore, for homeowners looking to invest in a highly efficient and effective cooling system, a split AC with a variable-speed compressor is a strong candidate.

Overall, while split AC systems offer numerous benefits such as efficient cooling, quiet operation, and modern design, they also come with challenges related to initial costs, installation, maintenance, and portability. Prospective buyers should carefully evaluate these factors to ensure they make the best choice for their specific needs.