How I Found the Cheapest DIY Mini Split: My Expert Tips and Personal Journey

When it comes to home comfort, I’ve always believed that finding the right heating and cooling solution shouldn’t break the bank. That’s why I was thrilled to dive into the world of DIY mini-splits, a budget-friendly option that combines efficiency with a touch of creativity. In my quest to explore the cheapest DIY mini-split systems, I discovered a treasure trove of options that can transform any space into a haven of comfort without the hefty price tag. Whether you’re a seasoned DIY enthusiast or just looking to tackle a project that enhances your home’s climate control, the possibilities are endless. Join me as I uncover the secrets to installing an affordable mini-split system that doesn’t compromise on quality, and learn how to take control of your indoor environment while keeping your expenses in check.

I Tried Out The Most Affordable DIY Mini Split and I’m Sharing My Honest Recommendations Below

1. COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

As I delve into the features of the COSTWAY 12000BTU Mini Split Air Conditioner & Heater, I can’t help but feel excited about the potential this unit holds for making my living space more comfortable all year round. First, let’s talk about its impressive energy efficiency. Equipped with a high-power compressor and a 1-ton heat pump, this unit is designed to tackle both the sweltering heat of summer and the chilly winter nights. The AHRI certification ensures that I’m investing in a reliable product that not only cools but also warms efficiently, giving me peace of mind about my energy bills. The innovative inverter technology is a game-changer; it adjusts the power supply frequency, allowing the unit to run smoothly without the constant on-and-off cycling that can lead to increased wear and tear. This means a longer lifespan for my air conditioner and less money spent on repairs and energy consumption.

What truly caught my attention is the versatility of the COSTWAY Mini Split AC. With five different modes—auto, cool, dry, heat, and fan—I have the flexibility to adapt to whatever weather conditions come my way. Additionally, the four available fan speeds (low, medium, high, and auto) and specialized modes like ECO and Turbo ensure that I can customize my comfort level. The sleep mode is particularly appealing for those warm summer nights when I want to enjoy a refreshing coolness while I rest. The iFEEL function is another fantastic feature that adjusts the temperature based on where the remote is located, ensuring that I’m always enveloped in comfort.

Control is effortless with the handy remote, which allows me to adjust settings from the comfort of my bed or sofa. The 0.5-24 hour timer is a thoughtful addition that lets me pre-set operations, ensuring the room is just how I like it when I arrive home. One of my favorite features is the low-noise operation; I appreciate a peaceful environment, especially while sleeping. The automatic display screen shut-off after 10 seconds of inactivity ensures that there are no annoying lights to disturb my sleep.

Maintenance is a breeze thanks to the self-cleaning function, which operates at a high temperature of 134.6℉, keeping the interior clean and the air fresh. The washable filter adds convenience as I can easily maintain a healthy environment in my home. The auto-defrost function on the outdoor unit is an added benefit, preventing damage while also enhancing energy efficiency. This means less hassle for me, and more time enjoying the comfort of my space.

Moreover, I appreciate COSTWAY’s commitment to quality and customer satisfaction, as reflected in their industry-leading warranty. With five years of parts replacement and eight years of compressor coverage, I feel secure in my investment. It’s comforting to know that the manufacturer stands behind their product, ensuring reliability for years to come. And as an eco-conscious consumer, I am particularly drawn to the fact that this unit is pre-charged with R32 refrigerant, which is far less harmful to the environment compared to the outdated refrigerants used by many competitors. This not only aligns with my values but also contributes to a healthier planet.

In summary, the COSTWAY 12000BTU Mini Split Air Conditioner & Heater is an exceptional choice for anyone looking to enhance their indoor comfort throughout the year. With its energy-efficient design, diverse modes, easy control, and low maintenance, I believe this unit offers great value. If you’re on the fence about making a purchase, I wholeheartedly recommend considering this model. It meets a variety of needs and is engineered for longevity and performance. Trust me; investing in this air conditioner will transform your living experience.

Feature	Description
Energy Efficiency	High power compressor and 1 ton heat pump, AHRI Certified for reliable performance.
Modes	5 modes auto, cool, dry, heat, and fan mode with 4 fan speeds.
Remote Control	Handy remote with a 0.5-24 hour timer and low-noise operation.
Maintenance	Self-cleaning function and washable filter with auto-defrost feature.
Warranty	5 years parts replacement, 8 years compressor coverage.
Eco-Friendly	Pre-charged with R32 refrigerant, less harmful to the environment.

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2. MrCool Easy Pro 12k BTU 18 SEER Ductless Heat Pump Split System – DIY Mini Split w/ 16ft Lineset

As I dive into the features of the MrCool Easy Pro 12k BTU 18 SEER Ductless Heat Pump Split System, I can’t help but feel excited about the potential this product holds for anyone looking to enhance their home heating and cooling experience. This system is particularly appealing for those who prefer a DIY approach, as it comes equipped with a 16FT pre-charged line set, making installation easier and more accessible than ever. The DIY aspect is a game changer for homeowners who want to save on installation costs without compromising quality.

The 18 SEER rating is another standout feature that caught my attention. SEER, or Seasonal Energy Efficiency Ratio, indicates how efficiently a cooling system operates over a typical cooling season. An 18 SEER rating means this unit is highly efficient, which translates to lower energy bills and a smaller carbon footprint. For anyone conscious about energy consumption and costs, this is a significant benefit. I can easily envision how this product could lead to substantial savings over time, making it a worthwhile investment.

One feature that I find particularly useful is the ‘Follow Me’ function. This innovative feature allows the system to adjust the temperature based on the location of the remote control, ensuring that the area where I spend the most time remains comfortable. It’s a small touch, but it can significantly enhance comfort levels, especially in larger spaces. I appreciate how this adds a layer of personalization to the heating and cooling experience.

Additionally, the Sleep Mode is a thoughtful inclusion for those who value a good night’s sleep. This mode automatically adjusts the temperature to create a more comfortable sleeping environment, which is perfect for anyone who struggles with temperature regulation at night. I personally find this feature very appealing, as it takes the guesswork out of maintaining an ideal sleeping temperature, allowing me to wake up refreshed and ready for the day.

Another aspect I value is the washable filters. This feature not only promotes better air quality by allowing easy maintenance but also contributes to the longevity of the unit. I love that I can keep my living space fresh and clean without the hassle of frequent replacements. It shows that MrCool understands the importance of convenience and usability in their product design.

Moreover, I feel reassured by the warranties offered with this product. The one-year compressor warranty and two-year parts warranty reflect the brand’s confidence in their product’s durability and reliability. For any prospective buyer, knowing that there’s support should issues arise adds an extra layer of peace of mind, making the decision to invest in this system much easier.

if you’re on the fence about improving your home’s heating and cooling capabilities, the MrCool Easy Pro 12k BTU 18 SEER Ductless Heat Pump Split System presents a compelling option. With its user-friendly installation, energy efficiency, customizable comfort features, and solid warranties, it stands out as an excellent choice for both DIY enthusiasts and those seeking a reliable climate control solution. I wholeheartedly recommend considering this unit—it could transform your living space into the comfortable oasis you’ve always wanted.

Feature	Description
16FT Pre-charged Line Set Included	Easy installation without the need for additional charging or preparation.
18 SEER Rating	Highly energy-efficient cooling, leading to lower energy bills.
Follow Me Feature	Adjusts temperature based on the remote’s location for personalized comfort.
Sleep Mode	Automatically adjusts temperature for optimal sleep comfort.
Washable Filters	Promotes better air quality and easy maintenance.
1 Year Compressor Warranty	Peace of mind regarding the compressor’s reliability.
2 Year Parts Warranty	Assurance for parts durability and support.

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3. YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System, 20 SEER2 115V Ductless Inverter System with Wi-Fi & Alexa Compatibility, Covers Up to 750 Sq. Ft, Complete Installation Kit Included

As I delve into the YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System, I can’t help but feel excited about the numerous benefits this product offers. Designed with modern technology and efficiency in mind, this air conditioner is not just a cooling system; it’s a versatile climate control solution that is sure to enhance comfort in my home or workspace. With a remarkable 20 SEER2 rating, it stands out as an energy-efficient option, which is particularly beneficial for anyone looking to reduce electricity bills while maintaining a comfortable environment.

One of the standout features of this mini-split system is its dual functionality as both an air conditioner and a heat pump. This means that no matter the season, I can rely on it to keep my spaces comfortable year-round. The inverter technology is a game-changer, saving up to 25% energy compared to traditional systems and up to 50% compared to older 14 SEER2 models. This energy efficiency is not just good for my wallet; it also contributes to a smaller carbon footprint, making it an environmentally responsible choice.

The five operational modes—Auto, Cooling, Drying, Heating, and Fan—provide a tailored climate experience. I appreciate how the flexibility of these modes allows me to adjust the system based on my specific needs at any given moment. Whether I need a quick cool down on a hot summer day or a gentle warmth during a chilly night, this mini-split system has me covered. The four fan speeds, from Low to Turbo, ensure that I can customize airflow to my liking. Additionally, the capability to control the unit via remote, Wi-Fi, or even with Alexa compatibility is a modern convenience that adds to its appeal, allowing me to change settings from the comfort of my bed or couch.

Another aspect I find particularly appealing is its quiet operation, running at under 41 dB. As someone who values a peaceful environment, especially during sleep or relaxation, this feature is a significant advantage. The ability to set the temperature between 60°F to 90°F through various control methods means I can fine-tune my comfort without any hassle. Plus, with the display being able to turn off, I can enjoy a completely undisturbed night’s sleep.

The YITAHOME mini-split system is also designed for all-weather responsiveness, functioning effectively in temperatures ranging from 5°F to 118°F. This means I can trust it to perform flawlessly regardless of the outside conditions, whether it’s a frigid winter night or a scorching summer day. The powerful airflow that reaches up to 50 feet, coupled with 4D air circulation, ensures that every corner of my space receives adequate climate control, eliminating any hot or cold spots that might be bothersome.

Installation is straightforward as the unit comes with a complete installation kit, although it must be installed by a licensed HVAC professional. This is a small trade-off for the performance and quality I expect from a product like this. The removable and washable air filter is another thoughtful feature, promoting better air quality and reducing maintenance efforts on my part.

In summary, the YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System presents a compelling combination of efficiency, versatility, and modern convenience. Its thoughtful design and features make it an ideal choice for anyone looking to enhance their living space comfort without incurring exorbitant energy costs. After considering all these benefits, I genuinely believe this product can significantly improve anyone’s home experience, and I would highly recommend taking the next step to invest in this innovative system. It’s a decision that promises comfort, efficiency, and peace of mind.

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4. YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System, Wifi Enabled 20 SEER2 115V Ductless AC Cool Up to 750 Sq. Ft, Compatible with Alexa, Complete Installation Kit, White

When I first encountered the YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System, I was genuinely impressed by its versatility and energy efficiency. In today’s world, where climate control has become essential, this system stands out as an excellent solution for anyone seeking effective cooling and heating options for spaces up to 750 square feet. Whether it’s for my bedroom, living room, garage, or even an RV, this unit promises to deliver optimal comfort year-round. Plus, its WiFi capabilities and compatibility with Alexa make it incredibly user-friendly and modern.

The energy-efficient cooling and heating features are particularly noteworthy. With innovative inverter technology, the YITAHOME system can save up to 25% on energy costs while maintaining peak performance. This is not only beneficial for the environment but also for my wallet. The fact that it is ETL and AHRI certified gives me peace of mind, knowing that I’m investing in a reliable and energy-efficient product. I can already imagine the savings on my electricity bills while enjoying a perfectly tempered environment in my home.

What truly excites me is the five operational modes this air conditioning unit offers. Whether I want to cool down during a hot summer day, heat my space during chilly winter nights, or even just circulate air, this system has me covered. The presence of auto, dry, heat, fan, and cool modes ensures that I can always find a suitable setting for my needs. Additionally, the “HEALTH” mode, which includes negative ions and PM2.5 removal, shows that YITAHOME is prioritizing not just comfort but also health, which is incredibly important in today’s polluted environment.

Moreover, the quiet operation of the YITAHOME mini-split system is a huge advantage. I appreciate a peaceful environment, especially when I’m trying to relax or work from home. With noise levels below 41 decibels, I can enjoy a tranquil atmosphere while benefiting from effective climate control. The remote control further enhances convenience, allowing me to easily adjust temperatures between 60℉ and 90℉ without needing to get up.

The all-weather response capability of this air conditioning system is another significant feature. Knowing that it can operate efficiently in temperatures as low as 5°F and as high as 118°F gives me confidence that I can rely on it no matter the season. The maximum airflow distance of 50 feet ensures that the air circulates thoroughly throughout the room, creating a comfortable environment for everyone.

Finally, I appreciate the comprehensive installation package that comes with the YITAHOME system. While professional installation is required, the inclusion of an indoor unit, outdoor unit, multifunctional remote control, and installation kit simplifies the process considerably. The washable air filter is another great feature, making maintenance easy and cost-effective. It’s worth noting that the system ships in two packages, which may arrive separately, but the anticipation is more than manageable given the quality and value this product offers.

I firmly believe that the YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System is an excellent investment for anyone looking to enhance their living or working space. With its energy efficiency, multiple modes, quiet performance, and all-weather capability, it truly stands out in the market. If you’re in the market for a reliable, versatile, and modern cooling and heating solution, I wholeheartedly recommend considering this system. It may just be the perfect fit for your comfort needs!

Feature	Description
Cooling & Heating	Dual functionality with inverter technology for efficiency.
Energy Efficiency	20 SEER2 rating saves up to 25% energy.
Modes	Five modes Auto, Cooling, Drying, Heating, and Fan.
Fan Speeds	Four fan speeds Low, Medium, High, Turbo.
Quiet Operation	Runs under 41 dB for a peaceful environment.
Temperature Range	Works from 5°F to 118°F.
Airflow	Max airflow reaches up to 50 ft with 4D circulation.

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Why the Cheapest DIY Mini Split May Help Me

When I first considered upgrading my home’s heating and cooling system, I was overwhelmed by the costs associated with traditional HVAC systems. That’s when I stumbled upon the DIY mini split option, which turned out to be a game changer for my budget. The initial investment is significantly lower compared to professional installations, allowing me to allocate my funds elsewhere while still ensuring a comfortable living environment.

One of the most appealing aspects of the DIY mini split was the flexibility it offered. I could install it myself, which not only saved me money on labor costs but also gave me the satisfaction of taking on a home improvement project. With clear instructions and online resources available, I felt empowered to tackle the installation, and it turned out to be easier than I anticipated. This hands-on experience helped me understand my home’s cooling and heating needs better, allowing me to make informed adjustments in the future.

Moreover, the energy efficiency of mini splits has made a noticeable difference in my utility bills. After switching to a DIY mini split system, I found that I could control the temperature in specific rooms rather than relying on a central system that heated or cooled the entire house. This targeted approach not only kept my space more comfortable but also significantly reduced

Buying Guide for the Cheapest DIY Mini Split

Understanding Mini Split Systems

When I first started looking into mini split systems, I realized they are an efficient way to heat and cool my space. These systems consist of an outdoor compressor unit and one or more indoor air handling units. They are perfect for homes without ductwork, and they offer flexibility in terms of installation.

Assessing My Needs

Before diving into my purchase, I took time to assess my cooling and heating needs. I measured the square footage of the rooms I wanted to condition. Understanding the BTU (British Thermal Unit) requirements for my space helped me choose a system that wouldn’t be overpowered or underpowered.

Researching Prices

I started my search by comparing prices from different retailers. I found that prices can vary significantly based on the brand, features, and energy efficiency ratings. I made sure to note the average costs so I could identify a budget-friendly option.

DIY Installation Considerations

Opting for a DIY mini split system meant I had to be comfortable with some level of installation work. I researched the installation requirements, including the tools I would need and the steps involved. Ensuring I could handle the installation myself saved me a considerable amount of money.

Energy Efficiency Ratings

One of the most important factors for me was energy efficiency. I looked for systems with a high SEER (Seasonal Energy Efficiency Ratio) rating. Higher efficiency ratings can lead to lower energy bills, which is a significant consideration in the long run.

Warranty and Support

I paid close attention to the warranty offered by the manufacturer. A good warranty gave me peace of mind, knowing I would be covered in case of any issues. I also checked customer support availability, as I wanted to ensure help was accessible if I encountered any problems during installation.

Reading Customer Reviews

I found it helpful to read customer reviews on various models. These reviews provided insights into the performance of the systems, installation experiences, and long-term satisfaction. I looked for patterns in the feedback to gauge the reliability of each option.

Finalizing My Choice

After gathering all my research, I narrowed down my options based on price, efficiency, and user experiences. I made sure to stick to my budget while considering all the features I wanted. Finally, I felt confident in making my purchase, knowing I had done my due diligence.

Preparing for Installation

Before the installation day, I gathered all necessary tools and materials. I made sure to follow the installation manual closely, watching instructional videos to ensure I was well-prepared. This preparation made the installation process smoother and more efficient.

Enjoying My DIY Mini Split

Once I completed the installation, I could finally enjoy the benefits of my DIY mini split system. The comfort it provided was well worth the effort I put into researching and installing it. I felt proud knowing I made an informed choice that fit my budget and needs.

Author Profile

Sherveen Southern

My name is Sherveen Southern. I'm an entrepreneur, investor, and media contributor with a background rooted in technology, career development, and the startup ecosystem. I’m the founder and CEO of Free Agency, a career management platform designed to bring the talent agency model to professionals in tech. Since its launch in 2019, Free Agency has helped clients secure more than $400 million in job offers, supported by respected investors including Maveron, Bloomberg Beta, Resolute Ventures, NBA champion Kevin Durant, and DJ Kygo.

Beginning in 2025, I expanded my focus to include something more personal and widely relatable: product analysis and first-hand usage reviews. This blog is the result of that transition. Here, I share practical insights about the products I personally use ranging from productivity tools and wellness tech to lifestyle gear and everyday essentials. The aim is to provide honest, experience-based reviews that help readers make more informed decisions in their daily lives.

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Feature	Description
Cooling & Heating	Energy-efficient cooling and heating with a 12000 BTU output.
Energy Savings	Innovative inverter technology offers up to 25% energy savings.
Coverage Area	Cools and heats spaces up to 750 sq. ft.
Operational Modes	Five modes auto, cool, dry, heat, fan, and “HEALTH” mode.
Noise Level	Operates below 41 decibels for quiet performance.
Temperature Range	Adjustable between 60℉ and 90℉.
All-Weather Performance	Functional in temperatures from 5°F to 118°F.
Installation