Best Mini Split Ductless Systems (2023)

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Oct 19, 2023

If you’re looking for an efficient and cost-effective way to cool your home, a mini split ductless system might be the perfect solution for you. These types of HVAC systems are becoming increasingly popular, as they provide targeted cooling and heating while saving energy and reducing utility bills. In this article, we’ll discuss the best mini split ductless systems and the benefits of using them.

What is a Mini Split Ductless System?

A mini split system is a type of ductless air conditioner and heating system that uses a small outdoor unit and one or more indoor units to cool or heat specific areas of your home.

Unlike traditional central air conditioning systems that use ducts to distribute air throughout the house, mini split systems are ductless and require only a small hole in the wall to connect the indoor and outdoor units, drastically reducing the cost of installation.

Benefits of Using a Mini Split Ductless System

There are many benefits to using a mini split ductless system. Firstly, they are energy-efficient, meaning they use less energy to cool or heat your home. This is because they don’t have to move air through ducts, which can cause energy loss. Secondly, they allow for targeted cooling and heating, so you only have to cool or heat the rooms you’re using. This can lead to significant energy savings and lower utility bills. Thirdly, they are easy to install and require minimal modifications to your home, making them an ideal solution for older homes or buildings that don’t have existing ductwork.

Best Mini Split Systems

Based on price, rating, ease of installation and reviews, here are our top picks for best ductless mini split systems:

Senville LETO Series Mini Split Air Conditioner Heat Pump, 12,000 BTU (Most Affordable)

4-IN-1 mini split system with air conditioning, built-in heat pump (up to 5F/-15C), dehumidifier, fan and turbo function. This top seller even works with Alexa for voice control!

Buy on Amazon

Cooper & Hunter 24,000 BTU, 230V, 17 SEER Ductless Mini Split AC/Heating System (Best Value)

Cooper & Hunter brand is a top-performing mini split ductless system that delivers excellent cooling and heating performance. It is known for its quiet operation, energy efficiency, and reliability.

Buy on Amazon

Pioneer Air Conditioner Ductless Inverter + Mini Split Heat Pump, 18,000 BTU (Best Overall)

Built with the latest technologies for superior efficiency, comfort, and performance: WYS 20 Inverter + product line, 18,000 BTU/h is ideal for single zone residential & light commercial applications. With an ambient temperature operating range of -13°F all the way up to 122°F, this ultra-capable system is the perfect year-round heating and cooling solution.

Buy on Amazon

Installing a Mini Split System

Installing a mini split ductless system is a relatively easy process that can be completed in a few hours. Common install applications are for room additions, attics, basement renovations, garages and AC replacement projects.

  1. Mount the Indoor Unit: Once you have chosen the right location, you will need to mount the indoor unit on the wall. Use a mounting bracket to secure the unit to the wall, and make sure that it is level.
  2. Drill a Hole: Next, you will need to drill a small hole in the wall to connect the indoor unit to the outdoor unit. This hole should be about 3 inches in diameter and should be located near the indoor unit.
  3. Connect the Lines: Once the hole is drilled, you can connect the refrigerant lines, electrical wiring, and drain line to the indoor unit. This process can be completed by following the manufacturer’s instructions.
  4. Mount the Outdoor Unit: After connecting the lines to the indoor unit, you can mount the outdoor unit on a flat surface outside your home. Make sure that the outdoor unit is level and is located in a well-ventilated area.
  5. Connect the Lines to the Outdoor Unit: Once the outdoor unit is mounted, you can connect the refrigerant lines, electrical wiring, and drain line to the outdoor unit. This process can also be completed by following the manufacturer’s instructions.

Energy Star Energy Efficiency Rating (SEER)

SEER is an important factor to consider when choosing a mini split ductless system. The higher the SEER rating, the more efficient the unit is. Mini split ductless systems with high SEER ratings use less energy to cool or heat your home, which can save you money on your utility bills.

In general, Energy Star rated mini split ductless systems have SEER ratings of 18 or higher, which means they are highly efficient and can provide significant energy savings over time. Be sure to look for models with high SEER ratings and Energy Star certification to ensure maximum energy efficiency.


In 2023, mini-split air conditioners have come to the forefront as one of the most efficient and adaptable alternatives to traditional HVAC systems. Unlike the once-popular window air conditioners, these ductless mini-split air conditioners provide an excellent balance of cooling capacity, often measured in British thermal units, and the flexibility of single or multi-zone systems. They offer homeowners a respite from the often cumbersome and intrusive installation processes of traditional HVAC systems.

Additionally, with the right knowledge, DIY installation is a feasible option, though regular mini-split maintenance remains vital to ensure the longevity and efficiency of the system. When comparing the benefits of a ductless air conditioner with a heat pump system or any other type of HVAC system, it’s evident that ductless mini splits have carved a unique niche, delivering performance and flexibility in tandem.

As homeowners and property managers become more environmentally conscious and cost-sensitive, the demand for energy-efficient and space-saving air conditioners will only increase. Ductless mini splits, with their easy installation process, environmentally friendly performance, and high cooling capacity, have positioned themselves as the future of residential and commercial HVAC solutions. Whether you’re replacing an old window air conditioner or integrating a new system into a recent build, considering the modern advances and benefits of a mini-split air conditioner will surely pave the way for a more comfortable and sustainable living environment.

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