The Ultimate Mini Split Buyer's Guide

The Ultimate Mini Split Buyer's Guide

How to Pick the Perfect Mini Split

Installing a ductless mini-split in your home is one of the best decisions you'll ever make.

They are quiet, discrete, and arguably the most efficient way to control the climate in any home. In this article, we'll show you how to pick the best strategy for your home while providing links to all of the possible equipment you'll need.


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What is a Mini Split?

Named for their split design, a ductless mini split system is a comfort solution used for countless HVAC installations the world over. They are also often referred to as a  mini split heat pump because they can provide excellent heating in many applications.

Consisting of an outdoor unit and one or more indoor units, mini splits can be utilized as a standalone system, supplemental system, or for dedicated rooms. Their ductless design provides flexible and compact installations, making them ideal for almost any application.

Some installations include bringing a mini-split into unconditioned spaces such as garages or additions and they can also be used in rooms that are under-served. Mini Splits are perfect even for historical homes without ductwork as a complete heating and cooling solution.


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Quiet Comfort

With sound ratings as low as 19 dB, mini split units can operate at sound levels quieter than a whisper. This means your mini split will not only be unobtrusive, but you may even forget it's running at all.


Mini Split Living Room


Are Mini Splits Worth It?

Yes! By combining several energy-saving technologies, mini splits are one of the most energy-efficient ways to keep your home comfortable all year round. Inverter-driven condensers cut down on waste by delivering the precise amount of heating or cooling required to keep your space comfortable, thereby minimizing energy costs.

Compared to conventional central-air equipment, mini splits use advanced control algorithms, intelligently-designed heat exchangers, and inverter-driven compressors to save you 30% or more on energy bills and achieve incredible efficiency ratings over 28 SEER2.


Mini Split Efficiency
Ductless mini split air systems with inverter technology are more efficient and maintain more even temperatures than traditional HVAC systems.



Learn: Mini Split Efficiency


Superior Comfort

Unlike traditional systems which are either ON or OFF, inverter-driven units can vary the amount of cooling or heating they deliver.

This means that instead of cycling and swinging from too hot to too cold, a ductless heater and air conditioner will deliver continuous heating or cooling -- virtually eliminating temperature variation and keeping you perfectly comfortable all the time!

As an added benefit, they even remove moisture the entire time they're running, making your home even more comfortable.


Learn: How Mini Splits Dehumidify


Energy Rebates

Thanks to their efficient performance, mini splits can qualify their owners for equipment-related tax benefits and credits under many circumstances.

These rebates vary by state and Zip Code. Find out which rebates you qualify for by using this free energy rebate wizard.


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Ductless Air Conditioner vs. Heat Pump

Before you go off and try to purchase a mini split, you'll first need to decide if you want one that will do both heating and cooling or one just to cool the air.

Choosing a mini split heat pump versus an air conditioner is pretty simple. Cooling-only mini split systems are typically found in tropical or desert climates as well as special applications like server rooms.

Mini split heat pumps are the most popular choice as they can be used anywhere to cool in the summer with the option of heating in the winter.


Learn: Heat Pumps vs. AC


Mini Split Freezing Outside

Challenges in Extreme Weather

When the temperature outside goes to extremes, it can inhibit a mini split heat pump's capacity.

Just as extreme heat in the summer makes it difficult for an air conditioner to cool, when temperatures drop below freezing in the winter, capturing heat also becomes difficult. 

In either case, there is a decline in both efficiency and performance, which is why it's important to get the proper-sized equipment and be prepared for every season.


Learn: Mini Split Heat Pumps


Mini Split Zones

Another key benefit of mini-split systems is the option to zone your home into multiple areas.

The ability to zone your home with a mini split system gives you tremendous control and flexibility over your home’s environment. You are able to condition only the spaces you need when you need them while controlling each space independently.


Zoning Mini Split

Single Zone

Single-zone systems are simple, consisting of a single outdoor unit and indoor unit.

These types of systems are ideal for adding cooling and heating to previously unconditioned spaces or to supplement under-served spaces in an existing system. 

The only drawback is that single-zone systems cannot be converted into multi-zone systems at a later time.


Learn: Single- vs. Multi-Zone



Multi-zone systems consist of a single outdoor unit with up to 8 indoor units giving you a combination of control, comfort, and efficiency that no other system on the market is able to match.

Each indoor unit operates independently of the others in the circuit, providing you with individualized comfort in each space. For example, you can turn off your laundry room unit until laundry day, or you can adjust the unit in your kitchen when you're cooking a meal - the possibilities are endless.


Learn: Zoned Ductless Systems


Mini Split Indoor Unit

Mini Split Indoor Units

There are multiple types of indoor units available to serve your home's needs. The indoor unit(s) you choose should be based on your home's layout as well as your aesthetic preference.


Learn: Indoor Units


Learn More About Each Unit Type:

Mini Split Accessories

It's equally important to have all of the necessary components in order to install your mini-split equipment as it is to get the best quality parts to ensure top performance.

From line sets to condensate pumps, you'll learn everything required to install your custom system.


Learn: Mini Split Accessories


Detailed Accessory Buyer's Guides:

Mini Split Installation

Installing HVAC equipment is highly technical and best left to the professionals.Mini Split Installation

Take it from us, finding the best contractor to install your equipment is essential to ensure years of reliable service and warranty coverage. You don't want to go through all the trouble of getting the best equipment just to have it improperly installed and not work properly.


Find an HVAC Contractor

How Much Does a Mini Split Cost?

The average cost of a single-zone mini split and installation is around $3,000, which includes the unit itself plus installation. For multizone units, it depends on how many extra zones you install, but you could pay more than $12,000 for a complex system. As a rule of thumb, add an additional installation cost of $500 per zone plus an average cost of $1,500 per additional mini split unit. The cost of a mini split unit can go up based on brand name, features, and output.

Ultimately, the amount of pay may vary from these average estimates based on your location, installer, and other unique requirements.



Mini Split Sizing

Now that you know which system and various components you need, the next step is figuring out what size mini split will be best for each room in your application.

To get into that "Goldilocks Zone", you'll need one that's just right - not too small and too large.


Mini Split Calculator

Mini Split Modern Living Room


Build Your Mini Split System

One of the best things about mini-splits is that they're infinitely customizable, giving you thousands of options from which to choose.

So, how do you pick the best one? Luckily, our mini split system builder is a quick and easy way to find the right system for your home. 

Since you already know the sized system you're looking for, simply enter your specifications and you'll be able to view a list of systems perfect for your space.


Mini Split System Builder

Mini Split Buyer's Guide Navigation
Home | Inverter Technology | Efficiency | Dehumidification | Heat Pumps vs A/C | Winterizing | Single-Zone vs Multi-Zone | How To Zone | Indoor Units | Accessories | Find an Installer | Mini Split Sizing Calculator | System Builder

Ken, the eComfort Product Expert
Product Expert
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