Why Installing A Mini Split For A Garage Is A Good Idea

Why Installing A Mini Split For A Garage Is A Good IdeaThese days your home’s garage is not always used exclusively for your automobiles or storage. Today’s modern garage can be used as a work or craft space, a recreational space or a private getaway where a person can tinker in peace.

If that sounds like your garage or if that sounds like the garage that you would like to have, we know how you can make a garage more than just a garage.

At Compass Heating and Air, we have been making homes more comfortable with state-of-the-art heating and cooling systems since 2011. We love to solve problems and create the most comfortable homes and businesses possible. We have made it our business to find creative solutions to our customer’s needs.

Advantages of Using a Mini Split for Your Garage

The mini split is one of our go-to solutions for creating livable space out of areas that maybe weren’t designed as such. It is the perfect solution for making a garage or a sunroom an extended part of the house for several reasons.

Our mini split for garage solution:

Easy Installation

One of the primary benefits of using a mini-split system in your garage is the ease of installation. These HVAC systems are designed to be compact, efficient, and simple to set up. Unlike traditional heating and cooling solutions, mini-split systems require less time and labor to install.

In most cases, a mini-split system consists of an indoor air-handling unit and an outdoor compressor unit. These two components are connected by wiring, making the installation process relatively straightforward. The indoor unit can be mounted on a wall or ceiling, while the outdoor unit can be placed on a concrete slab or a dedicated platform. Overall, the installation process is much simpler than that of traditional HVAC systems.

No Ductwork Required

Another advantage of using a mini-split for your garage is that no ductwork is needed. This is a significant benefit for homeowners who are looking for an efficient heating and cooling solution without the hassle of installing ducts. Ductwork can be expensive, intrusive, and may even detract from your property’s curb appeal.

By using a mini-split system, you can avoid the cost and inconvenience of installing ducts. The ductless design of mini-split systems also contributes to their energy efficiency, as there is no heat loss or gain through ducts. This means that you can keep your garage comfortable all year long, without sacrificing energy efficiency or incurring high utility costs.

Advantages of Using a Mini Split for Your Garage

We’ve heard homeowners ask, “Can I put a mini split in my garage?” At Compass, we think a mini split is a perfect solution for a garage or a sunroom. No ductwork is needed, and the unit can operate independently of the main HVAC system.

Excellent Climate Control

One of the primary advantages of using a mini split system in your garage is the superior climate control it offers. Unlike traditional heating and cooling methods, a ductless mini-split system provides consistent temperature regulation using variable speed, or inverter technology. This is especially important if your garage lacks proper insulation, which can cause it to become unbearably hot in the summer and freezing cold in the winter.

With a mini split, you can easily maintain the desired temperature in your garage, making it a comfortable workspace or recreational area. You should consider adding insulation if you are going to be spending time in the garage.

Protect Your Belongings

Another significant benefit of installing a ductless mini-split system in your garage is the protection it offers for your stored belongings. Many people use their garages as storage spaces for valuable items, which can be susceptible to damage due to extreme temperature and humidity fluctuations.

By maintaining a consistent temperature with a mini split, you can prevent damage to your possessions and ensure they remain in good condition. Additionally, if you use your garage as a workspace, a mini split will help create a comfortable environment, allowing you to work more efficiently and effectively.

What to Consider When Choosing a Garage Mini Split

Like any HVAC system, a well functioning mini split has certain requirements for it to operate at its optimal level. Securing the properly sized unit for the space and its positioning are important elements to achieving maximum comfort and efficiency.

Energy Efficiency

Ductless Is Perfect For A Garage Or SunroomWhen selecting a mini-split heat pump for your garage, energy efficiency should be a top priority. Look for units with a high SEER rating (seasonal energy efficiency ratio) and HSPF rating (heating seasonal performance factor). A higher SEER rating means the unit will consume less electricity to provide the desired cooling, while a higher HSPF rating indicates greater energy efficiency when heating. Opt for a mini-split with an Energy Star rating, as these units meet strict guidelines for energy efficiency and can save you money on your energy bills.

Square Footage

Before purchasing a garage mini-split, measure the square footage of your garage to determine the appropriate size of the unit. The Seed Context provides a handy chart to help you calculate the required BTUs for heating and cooling based on your garage’s size. For example, a 1-car garage might require a smaller unit, while a 2-car or 3-car garage will need a more powerful mini-split to effectively heat and cool the larger space.


The layout of your garage plays a significant role in choosing the right mini-split system. Consider the location of windows, doors, and other factors that may influence the heating and cooling requirements of different areas within the garage.

If you have a drafty door or large windows that let in sunlight, you may need to divide your garage into zones with separate indoor air-handling units to ensure even temperature distribution. An HVAC professional can help you determine the best layout for your mini-split system based on your garage’s unique design and geographical area.

By considering these factors, you can select the perfect mini-split heat pump for your garage, ensuring energy-efficient heating and cooling that meets the needs of your specific space.

What to Consider When Choosing a Garage Mini Split

Mini splits, like other HVAC systems, have some particular features that make choosing the right one for your job a little easier. For example, ceiling height, location of windows and door and available wall or ceiling space, can impact your choices.

An expert from Compass Heating and Air will be able to assist you in choosing the exact right mini split to accommodate the space and your needs. They’ll also be able to help you find the right rebates and tax credits available for your new system.

Ceiling Height

When selecting a mini split for your garage, consider the ceiling height. The higher the ceiling, the more BTUs you’ll need for efficient heating and cooling. A higher ceiling may also affect the placement of the indoor air-handling unit, as it should be mounted at an appropriate height to provide optimal air circulation.


Insulation plays a crucial role in determining the required BTUs and energy efficiency of your garage mini split. A well-insulated garage will require fewer BTUs to maintain a comfortable temperature, while a poorly insulated garage may require a more powerful system. Ensure you have proper insulation to maximize the benefits of your mini split and maintain a consistent temperature in your garage.

How You Use the Garage

The way you use your garage will also affect your choice of mini split air conditioners. If you use your garage as a workspace or for recreational activities, you may need a system with a higher SEER rating and HSPF rating for better energy efficiency. Your HVAC technician should be able to help you out with making the right choice.

When choosing a garage mini split, take into account the compressor’s location, as it can impact the property’s curb appeal. Look for Energy Star-rated systems, as they offer higher SEER and HSPF ratings, ensuring top-notch energy efficiency and potential savings on your energy bills.

The Condenser For Your Ductless Unit Tucks Nicely Against Your HomeOptions for Indoor Units (Air Handlers)

When selecting a mini-split system for your garage, you’ll need to consider the best air handler options to suit your needs. Factors such as ceiling height, climate, and the purpose of your repurposed garage will play a role in your decision. Here are various indoor unit options to consider:

Wall-Mounted Air Handler Options

Wall-mounted air handlers are the most common choice for mini-split installations. They are installed at a high level on the wall to maximize air circulation and minimize air escape. Many wall-mounted air handlers come with WiFi connectivity, allowing you to control your mini-split system using your smartphone or a smart home hub.

Wall/Ceiling Air Handler Choices

Wall/ceiling air handlers provide versatility in installation, as they can be mounted either on the wall or the ceiling. They are ideal for garages with limited wall space or unique ceiling heights. Like wall-mounted units, wall/ceiling air handlers often feature WiFi connectivity for seamless integration with your smart home devices.

Ceiling Cassette Options

Ceiling cassette air handlers are installed flush with the ceiling, making them an excellent choice for those who want a discreet and unobtrusive solution. They evenly distribute air throughout the garage, ensuring a comfortable climate regardless of the space’s configuration. Ceiling cassettes may also be equipped with WiFi connectivity for convenient control.

Dual-Zone: Two Air Handlers

For larger or multi-purpose garages, a dual-zone mini-split system with two air handlers can be an effective solution. This setup allows you to create separate climate zones within your garage, catering to different needs or preferences. Each air handler can be controlled independently, offering the same benefits of WiFi connectivity and smart home integration found in single-zone units.

By carefully considering your garage’s unique requirements and selecting the right air handler options, you can ensure your mini-split system provides efficient and effective climate control for your repurposed garage space.


Compass Heating and Air has served the Hoffman Estates, IL area for years. Here are some of our clients most frequently asked questions.

How big of a mini split do I need for a garage?

The size of your mini split depends on a few factors such as the square footage of the space, the number of windows and doors and the level of insulation. Our expert technician will be able to do a proper assessment of your garage area and recommend the exact right unit for you.

Can a mini split heat a garage in winter?

A properly sized mini split can heat a garage in the winter. As we indicated before, proper sizing makes all of the difference.

Do mini splits improve the value a house?

The good news is that a mini split installation will add value to your home. Adding additional living space to your home makes installing a mini split one of the best investments that a homeowner can make. Trusted mini split installers in Hoffman Estates, IL.

Call Compass Heating and Air at (630) 504-8688, for trusted mini split installers in Hoffman Estates, IL.