Proudly Serving
Our Community Since 1947

All You Need to Know About Ductless Systems and Installation by Our Experts

As heating and air conditioning solutions evolve, one technology has emerged as particularly efficient and adaptable for many households: ductless systems. At our company, we pride ourselves on guiding homeowners through the myriad options available to enhance their home comfort with innovative solutions like these. Ductless systems, also known as mini-split systems, offer a flexible, scalable means to heat and cool sections of your home without the need for extensive ductwork or major renovations.

Our professionals understand that each home has unique needs, and it’s our job to tailor our services to meet those needs precisely. Whether you’re looking to add a cooling system to a newly finished basement, a sunroom that gets too hot, or want to manage the climate in an older home that lacks ductwork, ductless systems provide an effective solution. Unlike traditional centralized systems, they require only a small hole to be drilled into the wall, making them less vulnerable to air leakage and security problems.

Explore the inner workings of ductless systems and understand the significant benefits they can offer your living space. Such systems not only deliver performance but also stand out for their operational efficiency, making them a popular choice among savvy homeowners looking for comfort without compromise.

What Are Ductless Systems and How Do They Work?

Ductless systems, also commonly referred to as mini-split systems, are a type of heating and cooling solution that does not require traditional air ducts to distribute air. This innovative system consists of two main components: an outdoor compressor/condenser and one or more indoor air-handling units. These components are connected by a conduit that houses the power cable, refrigerant tubing, and a condensate drain.

The working principle of ductless systems is straightforward and effective. When cooling, the indoor unit extracts heat from the interior air and transfers it to the outdoor unit, which then expels it outside. During colder months, the process reverses, allowing the system to provide heat by extracting it from the outside air and moving it indoors. This ability to both heat and cool makes ductless systems a versatile option for year-round indoor comfort, especially in homes without existing ductwork.

Advantages of Installing a Ductless System in Your Home

Choosing to install a ductless system in your home comes with a multitude of benefits. Here are some key advantages that our customers appreciate:

1. Energy Efficiency: Ductless systems are highly energy efficient, primarily because they avoid the energy losses typically associated with ductwork. In traditional systems, duct losses affects energy consumption, especially if the ducts are in unconditioned spaces like attics.

2. Customized Comfort: Each indoor unit of a ductless system can be controlled independently. This means you can set different temperatures in various rooms or zones of your house, catering to the unique comfort preferences of each family member.

3. Less Invasive Installation: Unlike traditional HVAC systems that can require extensive and disruptive ductwork installation, ductless systems are far less invasive to install. Our technicians can typically get your system up and running in just a day, as it mainly involves mounting the indoor and outdoor units and connecting them through a small hole in the wall.

4. Improved Indoor Air Quality: Ductless systems have multi-stage filtration that reduces dust, bacteria, pollen, allergens, and other particulates in the air. Since there are no ducts to collect dust and mold, the air in your home stays cleaner and healthier.

These advantages make ductless systems an attractive option for many homeowners. Our professionals can help determine if this solution is right for your specific needs.

Step-by-Step Ductless System Installation Process by Our Professionals

Installing a ductless system in your home involves precise steps that ensure optimal performance and comfort. Our technicians follow a structured approach to guarantee the system is installed perfectly. First, we conduct a detailed assessment of your home to determine the ideal locations for the indoor units. This placement is crucial for ensuring efficient air distribution and maintaining the aesthetic integrity of your interior décor.

Once the spots are strategized, we proceed to install the outdoor unit, typically positioned against an external wall. Our technicians ensure it is placed away from direct sunlight and debris for optimal operation. They then drill a small hole through the wall, which allows us to connect the outdoor and indoor units with the necessary conduits. These conduits contain the power cable, refrigerant tubing, and a condensate drain. This part of the process is carefully executed to ensure minimal disruption to your home’s structure and appearance.

Following this, the indoor units are mounted on the wall and connected via the conduits to the outdoor unit. Once all components are properly connected, the system is tested thoroughly to ensure it functions seamlessly across all operations, providing efficient heating and cooling as needed.

Maintenance Tips for Your New Ductless System

Regular maintenance is essential to maximize the lifespan and efficiency of your new ductless system. Here are some easy but critical tips our technicians recommend:

1. Clean or Replace Filters Regularly: Ductless systems have filters that capture dust and allergens. Cleaning these filters every month and replacing them as recommended will ensure your indoor air remains healthy and the system operates efficiently.

2. Inspect and Clean the Outdoor Unit: Ensure the area around the outdoor unit remains clear of leaves, dirt, and other debris. This prevents the system from overworking itself and ensures longer operational life.

3. Check for Leaks: Regularly inspect the connections for signs of leaks. A leak can lead to decreased efficiency and potential damage to the system over time.

4. Schedule Professional Maintenance: While many aspects of ductless system maintenance can be handled on your own, having our professionals perform an annual check-up can help catch issues before they become major problems and keep the system running at peak performance.


Embracing ductless technology for your heating and cooling needs is a wise decision, offering enhanced comfort, improved air quality, and significant energy savings. With careful installation by our experienced technicians and regular maintenance, your ductless system will serve you reliably for years to come.

If you’re in need of reliable ductless services in Jacksonville, IL, or have any concerns about your current heating and cooling solutions, remember, our team is here to help. At Brennan Heating and Air Conditioning, Inc., we pride ourselves on providing professional, top-quality HVAC services tailored to meet your specific needs. Connect with us today to explore how we can enhance the comfort and efficiency of your home!