AC Explained: How Do Mini Splits Work?

At a glance:

• The best mini splits are far more energy efficient than a traditional HVAC because they simply move heat extracted from the air into your home, instead of generating their own hot or cool air. 
• They offer both heating and cooling in one energy efficient system.
• Mini split heating and cooling allows you to heat or cool different rooms or zones of your home, which help lower your power bills.

If you're exploring HVAC options, you’ve likely encountered the term "mini split" or "mini-split AC." This type of HVAC system is gaining popularity for its efficiency and flexibility. Mini splits are ductless systems that can be installed almost anywhere, offering both heating and cooling solutions without the need for extensive ductwork.

What Are mini splits?

Mini splits, also known as ductless mini-split systems or mini-split heat pumps, are advanced HVAC systems that use the same basic technology as traditional air conditioning but with key differences. Unlike conventional systems, mini splits don’t generate their own hot or cold air. They just extract the heat from the air and move it in or out of your home. They also don’t require ductwork, making them more versatile and energy-efficient. Mini splits are usually mounted to the wall of a specific room in your home, which allows you to only heat or cool certain rooms of your home when needed. 

AC explained: how mini splits work

The core of a mini-split system’s functionality lies in its ability to transfer heat rather than create it. In the summer, the system removes heat from your home, cooling it down, while in the winter, it reverses the process to bring heat inside. This dual capability makes mini splits up to three times more efficient than traditional HVAC systems. Additionally, modern mini splits feature variable speed compressors that adjust energy use according to your home’s needs, making your home even more energy-efficient. 

The perks of mini split heating and cooling:

Lower energy consumption: Because they don’t generate their own hot or cool air, mini splits consume less energy than traditional systems. They also don’t require ductwork, which can cause up to 30% of energy to be lost. 

Versatility: Mini splits provide heating, cooling, dehumidification, and air purification in one system, simplifying home maintenance and reducing the need for multiple HVAC units.

Customizable comfort: With room-by-room temperature control, mini splits ensure that each area of your home is comfortable, offering more precise climate management than central systems.

The downsides of mini split heating and cooling

Higher upfront costs: Installing a mini-split system can be expensive upfront. However, the long-term savings in energy costs and maintenance can offset this initial investment.

Appearance: The indoor units of mini splits are more visible than the vents used in traditional systems. While modern designs are sleek, some homeowners may find them less aesthetically pleasing.

Who should choose a mini split?

Mini splits are ideal for homes without existing ductwork, older homes with inefficient duct systems, or spaces like additions and converted garages. They’re also a great option for those looking to reduce their carbon footprint and energy waste.

Let Tetra install the best mini split for you

The best way to install a mini-split system is to hire a trained HVAC expert. With Tetra, not only do you get a top-licensed professional, but you also get a free, virtual estimate, help finding and applying for rebates, and 10 free years of repairs and maintenance on your system. Schedule your free consultation today, one of our experts is waiting by the line.