8 Best Mini Splits in 2026

Contents
  1. The Top 8
  2. Top 8 Mini Splits Reviewed in Detail
  3. 1. Editor’s Choice
  4. 2. Best Compact
  5. 3. Best for Beginners
  6. 4. Best Lightweight
  7. 5. Best Premium
  8. 6. Best Splurge
  9. 7. Best Heavy-Duty
  10. 8. Best Value
  11. Mini Splits Compared Side by Side
  12. How We Reviewed
  13. What to look for
  14. How to Choose Mini Splits
  15. Frequently asked questions

Choosing the best diy mini split can be hard. The YITAHOME 12000 BTU Mini Split AC/Heating System is the top pick for its 20 SEER2 efficiency rating. This rating means it uses less energy while keeping you comfortable. The value pick is the Rellytech 11500 BTU Mini Split, which does not cool as efficiently but is great for smaller spaces.

The main tradeoff in this category is between efficiency and capacity. A higher efficiency rating gives you lower energy bills but may not cool larger spaces as effectively. The rest of this page will help you compare the best options based on your needs.

Paid links. We earn a commission from qualifying purchases at no extra cost to you. Prices are pulled live from Amazon and change often. How this works

The Top 8

1
Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2 Ductless Inverter
Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2 Ductless Inverter
Amazon.com
2
YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20 SEER2
YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20 SEER2
Amazon.com
3
Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V
Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V
Amazon.com
4
Rellytech Mini Split AC/Heating System, 18000 BTU, 19 SEER2 208-230V
Rellytech Mini Split AC/Heating System, 18000 BTU, 19 SEER2 208-230V
Amazon.com
5
COSTWAY 12000BTU Mini Split Air Conditioner& Heater
COSTWAY 12000BTU Mini Split Air Conditioner& Heater
Amazon.com
6
Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V
Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V
Amazon.com
7
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 24000 BTU
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 24000 BTU
Amazon.com
8
Temprium 12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump
Temprium 12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump
Amazon.com

Top 8 Mini Splits Reviewed in Detail

Here are the top picks for the best diy mini split, highlighting their key features and benefits.

1. Editor’s Choice

YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20 SEER2

$387.74
in stock
Amazon.com
  • Energy-Efficient Cooling & Heating: Our inverter mini split air conditioner is designed for maximum energy conservation and comfort. Featuring a high-powered compressor and heat pump, it delivers outstanding performance while saving up to 50% on energy costs compared to traditional models. Suitable for cooling and heating spaces up to 750 sq. ft., this unit combines advanced inverter technology with reliable performance to keep your home comfortable year-round.
  • Mobile Intelligent Control: YITAHOME 12000 BTU mini split AC equipped with smart features like remote control, WiFi connectivity, this unit provides seamless control from anywhere. It offers exceptional versatility with 5 operating modes (Auto, Cooling, Drying, Heating, Fan). Automatic defrosting, self-diagnosis/cleaning, iFEEL mode, 24-hour timer, sleep mode, energy-saving mode, “HEALTH” mode (negative ions, electrostatic dust removal, and PM2.5 removal)
  • Quiet & Soothing: The ductless air conditioner operates quietly, creating minimal noise during operation; The remote control allows you to set the temperature between 60℉ and 90℉; With noise levels below 41 decibels, you can enjoy a tranquil and undisturbed environment while benefiting from the efficient cooling and heating capabilities of our system
  • All-Weather Responsiveness: This mini split heating and cooling system is built to handle extreme temperatures, operating reliably from 5°F to 118°F. Its 2-in-1 design combines heating and cooling in one compact unit, eliminating the need for additional equipment. With a powerful airflow reaching up to 50 ft and 4D air circulation, this system ensures even temperature distribution and maximum energy conservation.
  • Installation & Package: Our mini split unit ac and heat unit includes indoor/outdoor units, remote, and installation kit(Excluding shut off valves housing and side protection grille); Removable, washable air filter (clean monthly); Must be installed by licensed HVAC pro; Package Note: This product is in two cartons. Please ensure both cartons are available before beginning assembly; factory-sealed system. Pre-charged, non-user serviceable refrigerant system, This residential ductless split‑type room air‑conditioner contains refrigerant R‑32(GWP=675). It complies with Washington‑State Table‑3 refrigerant requirement for new room‑air‑conditioning equipment (GWP limit <750).
Updated: 5 hours ago

The YITAHOME 12000 BTU Mini Split AC/Heating System is a leader in this category. It features a 20 SEER2 rating, which means it is very energy efficient. This system will save you significantly on your energy bills thanks to its inverter technology. Compared to the other picks, it stands out for its efficiency, making it an excellent choice for those looking to save money long-term.

Other units, like the Rellytech 11500 BTU Mini Split, offer good cooling solutions but do not match the energy efficiency of YITAHOME. This model is best for smaller spaces due to its lower capacity. If you need a powerful system, the Rellytech Mini Split AC/Heating System with 18,000 BTUs would be ideal but at the cost of being less energy efficient.

One downside of the YITAHOME model is that it may not perform as well in larger spaces compared to higher BTU options. If you have a medium-sized room, this is still an excellent choice.

Pros

  • 20 SEER2 rating for maximum energy savings
  • Offers both cooling and heating modes
  • Includes inverter technology for quiet operation and comfort

Cons

  • Not suitable for larger areas over 500 sq. ft.
  • Requires proper installation for optimal performance

Best for: Energy-conscious users in moderate-sized spaces. Not ideal for: Large rooms needing higher BTU units.

The YITAHOME Mini Split is a top choice for energy savings and comfort.

2. Best Compact

Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2 Ductless Inverter

$359.98 $399.99
in stock
Limited time deal
Amazon.com
  • One Unit, All Seasons — 11500 BTU for 550 Sq.Ft.: This ductless mini split replaces your window AC, space heater, and dehumidifier. It heats reliably down to -4°F with auto-defrost and maintains stable cooling at outdoor temperatures up to 122°F. Cool, Heat, Fan, Dehumidify, Turbo, Sleep, and Eco modes plus a 24H timer deliver customizable comfort for bedrooms, home offices, garages, basements, and living areas up to 550 sq.ft.
  • Ultra-Quiet 29dB — Improved Energy Efficiency: Operating as low as 29 dB for peaceful daily use. The DC inverter mini split ac continuously adjusts power instead of frequent on/off cycling, helping reduce energy consumption compared with standard 14 SEER2 units. Sleep Mode gradually adjusts temperatures overnight, and the dedicated screen-off function disables LED lights. It uses low-GWP R32 refrigerant and is certified ETL & AHRI verified.
  • Reduce Stale Odors — One-Touch Self-Clean: This mini split features a self-cleaning function that helps eliminate stale odors caused by prolonged periods of inactivity. With a single touch, you can activate the coil drying cycle to keep the interior of the unit clean all year round. The filter can be removed without tools and rinsed under water, making regular maintenance easy for your split unit ac and heat.
  • 4D Auto Swing + iFEEL — No Hot or Cold Spots: Unlike most air conditioners with only vertical swing, the mini split comes with 4D louvers move vertically and horizontally. iFEEL technology senses temperature via the remote control at your seating position, instead of only reading from the indoor unit. Enjoy balanced airflow and reduce uncomfortable direct air blasts.
  • 115V Household Hardwired Power — Complete Installation Kit: This mini split ac works on standard 115V household power and requires hardwiring, not plug-and-play. Factory pre-charged R32 refrigerant, paired with a 16.42ft copper line set and full installation kit (power cord not included). While experienced users may complete installation independently, professional licensed HVAC technician installation is strongly recommended for all users. Vacuum-pumping is required before startup. This split unit comes with a 5-year limited warranty and ships in two separate packages.
Updated: 5 hours ago

The Rellytech 11500 BTU Mini Split AC/Heating System serves a compact space well. With a 17 SEER2 rating, it is still energy efficient, though not as much as our top pick. This model can comfortably heat or cool spaces up to 550 square feet. The unique auto-defrost feature allows it to work effectively even in low temperatures, down to -4°F.

In comparison to the YITAHOME model, it offers lower energy efficiency but is better suited for slightly larger areas. It also comes with several modes, including turbo and eco modes, making it versatile for different weather conditions. Although it lacks some efficiency features, its reliable performance makes it a solid choice for small to medium spaces.

A drawback of the Rellytech 11500 is the slightly lower cooling capacity. If you have a very large room, you may need a more powerful option. However, for average living rooms or bedrooms, it works well.

Pros

  • Heats down to -4°F for cold-weather reliability
  • Cools large spaces up to 550 sq. ft.
  • Multiple modes including turbo and eco for versatility

Cons

  • Lower energy efficiency than top picks
  • Not suitable for larger areas needing higher BTUs

Best for: Users needing reliable heating in cold climates. Not ideal for: Large rooms or those needing maximum energy efficiency.

The Rellytech 11500 is perfect for colder climates and smaller spaces.

3. Best for Beginners

Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V

$399.99 $499.99
PRIMEPRIME
in stock
Ends in
Amazon.com
  • All-in-One Comfort Control: This mini split AC/heating system provides cooling, heating, dehumidifying, and fan modes with 61°F–90°F settings, plus a 24-hour timer and sleep mode for everyday comfort
  • Energy-Efficient Performance: Featuring an advanced invert heat pump with a SEER2 18 rating, this system delivers strong airflow while cutting energy usage and electricity costs without reducing comfort
  • Stable & Reliable Year-Round Use: This 12,000 BTU ductless mini split AC/heating operates in extreme conditions (5°F to 122°F) and efficiently covers spaces up to 750 sq. ft. for all-season comfort
  • Quiet Operation & Easy Control: This split AC unit runs quietly below 29dB to create a peaceful environment at home or work, with simple, intuitive controls for effortless daily operation
  • Self-Cleaning & Warranty Protection: This Air Conditioner offers self-cleaning function, easily removable filters and air blades for convenient cleaning, plus a 5-year compressor and 7-year parts warranty
Updated: 5 hours ago

The Albott 12,000 BTU Mini Split Air Conditioner and Heater is designed for comfort. It offers a 18 SEER2 efficiency rating, which is good but not the highest. With cooling, heating, dehumidifying, and fan modes, it provides all-around comfort for your home.

Compared to the YITAHOME, it is slightly less energy efficient and lacks some advanced features. However, it offers similar BTU capacity, making it suitable for medium spaces. For those who want a simple, all-in-one solution, this is a solid pick.

The limitation is that it doesn’t have the same energy-saving technology as other models. For buyers focused on saving money on utility bills, you may want to consider more efficient options.

Pros

  • Provides cooling, heating, and dehumidifying modes
  • 24-hour timer for convenience
  • Good for average room sizes

Cons

  • Lower energy efficiency than leading models
  • Not packed with advanced features

Best for: Users looking for a straightforward, all-in-one system. Not ideal for: Those focused on maximizing energy savings.

The Albott Mini Split is a solid choice for everyday comfort.

4. Best Lightweight

Rellytech Mini Split AC/Heating System, 18000 BTU, 19 SEER2 208-230V

$489.99
in stock
Amazon.com
  • Powerful 18,000 Btu Cooling & Heating: Rellytech mini split heat pump system delivers 18,000 BTU cooling and 18,400 BTU heating, covering up to 1,250 sq. ft. Ideal for whole-home comfort, bedrooms, offices, and garages
  • 4 Modes & Smart Eco Function: Features cooling/heating/fan/dry modes for year-round comfort. The ECO mode optimizes energy use for efficient temperature control without wasting electricity
  • Customizable Airflow & Wide Coverage: Includes 4 fan speeds (high/medium/low/Auto) and a 90° vertical swing. Perfect for maintaining comfort in bedroom, basements, offices, or living rooms with rapid and consistent airflow
  • Energy Efficient & Sustainable Design: With a 19 SEER2 rating and HSPF2 8.5, this pre-charged split-system air conditioner reduces energy costs while maintaining strong performance, offering a long-term cooling and heating solution for your home
Updated: 5 hours ago

The Rellytech Mini Split AC/Heating System with 18,000 BTU is a powerful option. It covers larger spaces, heating and cooling effectively. With a 19 SEER2 rating, it is reasonably energy efficient but not as high as the top choices. This model is perfect for whole-home comfort due to its ability to cover up to 1,250 sq. ft.

Compared to the YITAHOME and other smaller units, it excels in capacity. If you have a large area to cool or heat, this will perform well. However, you will sacrifice some energy efficiency compared to smaller models with higher efficiency ratings.

A downside is that it may not be as cost-effective in terms of energy consumption. Users may have higher bills, especially if used frequently in large areas. It’s ideal for users needing power over efficiency.

Pros

  • 18,000 BTUs for cooling large spaces
  • 19 SEER2 rating for decent energy efficiency
  • Four operational modes for flexible comfort

Cons

  • Higher energy costs compared to smaller models
  • Can be overkill for small areas

Best for: Users needing to cool or heat large spaces. Not ideal for: Small areas where efficiency is prioritized.

The Rellytech 18,000 BTU is perfect for large homes needing comfort.

5. Best Premium

Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V

$349.99
in stock
Amazon.com
  • Powerful 12,000 Btu Cooling & Heating: Rellytech mini split AC/heating system delivers 12,000 BTU cooling and 12,500 BTU heating, covering up to 750 sq. ft. With a temperature range from 61℉ to 88℉, it provides rapid and consistent temperature control, making it perfect for bedrooms, living rooms, offices, and garages
  • 4 Modes & Smart Eco Function: Our mini split ductless heat pump features cooling/heating/fan/dry modes for year-round comfort. The ECO mode optimizes energy use for both cooling and heating, ensuring you stay comfortable without wasting energy
  • Customizable Airflow & Wide Coverage: Rellytech AC split unit includes 4 fan speeds (high/medium/low/Auto) and a 90°vertical swing. Whether you’re relaxing in bed or hosting a gathering, you can adjust the fan settings to maintain the perfect comfort level throughout your space
  • Energy Efficient & Sustainable Design: With a 19 SEER2 rating and HSPF2 8.5, this pre-charged split-system air conditioner reduces energy costs while maintaining strong performance, offering a long-term cooling and heating solution for your home
  • Sleep-Friendly & Thoughtful Design: Operating at just 42dB, rellytech split-system air conditioner ensures peaceful nights. Sleep Mode gradually adjusts the temperature for comfort. The 24-hour timer and LED-off function further reduce disturbances. Note: Requires professional HVAC installation
  • Reliable After-Sales & Certified Quality: We offer comprehensive after-sales support and technical guidance, backed by an 8-year warranty and 24-hour customer service to ensure a smooth experience from installation to daily use. Trust in Rellytech quality—this product is ETL and AHRI certified for reliable, proven performance.
Updated: 5 hours ago

The Rellytech Mini Split AC/Heating System with 12,000 BTU capacity is a reliable choice. It offers a 19 SEER2 rating, which provides solid energy efficiency. This model is suited for spaces up to 750 sq. ft., making it versatile for various room sizes.

When compared to other models, it provides good performance at a lower energy cost. It’s ideal for users who don’t need the extra power of larger units. While it offers features similar to the YITAHOME, it lacks the highest efficiency rating, making it less suitable for very energy-conscious buyers.

One limitation is that it may not heat or cool as effectively in larger rooms. If you have a big space, you might want to consider models with higher BTU ratings. However, it is a great value for medium-sized areas.

Pros

  • 19 SEER2 rating for energy savings
  • Cools and heats up to 750 sq. ft.
  • Affordable option for many users

Cons

  • May struggle in larger spaces
  • Not as energy efficient as some top picks

Best for: Budget-conscious users needing decent performance. Not ideal for: Large rooms requiring higher BTU units.

The Rellytech 12,000 BTU is a budget-friendly option for average spaces.

6. Best Splurge

COSTWAY 12000BTU Mini Split Air Conditioner& Heater

$499.99 $559.00
in stock
Limited time deal
Amazon.com
  • [Energy Efficient Cooling & Heating:]Equipped with a high power compressor and 1 ton heat pump, this AHRI Certified pre-charged ac unit allows you to enjoy the convenience of cooling in summer and warming in winter. Besides, with an innovative inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, so as to reduce power consumption and prolong the service life of the equipment.
  • [5 Modes for All-Year Comfort:]This 12000 BTU split-system AC unit has 5 working modes for you to choose from: auto, cool, dry, heat and fan mode. In addition, this split air conditioner also comes with 4 available fan speeds (low/medium/high/auto), sleep mode, ECO mode, iFEEL & turbo function to meet various needs.
  • [Easy Control & Quiet Operation:]The handy remote control enables you to control this mini split AC unit from your comfortable bed or sofa conveniently. The smart 0.5-24 hour timer and low-noise operation ensure a peaceful sleep time. What’s more, the display screen on the remote control will be turned off automatically when there is no operation within 10s, which will not disturb your sleep.
  • [Self Cleaning & Auto Defrost:]Designed with a self-cleaning function at high temperature of 134.6℉ and a washable filter, this split air conditioner can automatically clean its interior and keep the air in your home fresh and clean. Moreover, the outdoor unit features an auto-defrost function to avoid damage and improve energy efficiency.
  • COSTWAY’s superior quality and design are backed by an industry-leading manufacturer’s warranty. This warranty covers 5 years of parts replacement and 8 years of compressor coverage, ensuring customers can rely on our products for years to come. In addition to this, the installation of this equipment should be done only by a Licensed HVAC Installer.
Updated: 5 hours ago

The COSTWAY 12000BTU Mini Split AC/Heater is a versatile option. It combines cooling and heating efficiently. The high-power compressor allows it to perform well in various climates. However, it does not have a specific SEER2 rating listed, which makes it harder to evaluate efficiency compared to others.

Compared to the YITAHOME, it lacks the high energy efficiency of 20 SEER2. Though it provides decent power, users need to weigh the possible energy costs. The absence of a clear rating may deter buyers focused on energy savings.

One downside is that the lack of a detailed SEER2 makes it less appealing for those who prioritize energy efficiency. If energy consumption is a primary concern, it may not be the best choice.

Pros

  • Combines cooling and heating effectively
  • High-power compressor for reliable performance
  • Adapts to different climates well

Cons

  • No specific SEER2 rating for efficiency
  • May cost more in energy bills

Best for: Users needing a reliable unit for various climates. Not ideal for: Energy-conscious buyers looking for efficiency.

The COSTWAY Mini Split is dependable for diverse climates but lacks efficiency clarity.

7. Best Heavy-Duty

Senville LETO Mini Split Air Conditioner, Heat Pump, White, 24000 BTU

$1,249.99
in stock
Amazon.com
  • Alexa Enabled Mini Split AC/Heating System: Integrate with voice control or app, allowing you to adjust your mini split air conditioner from anywhere. Set routines for temperature changes.
  • Versatile 4-in-1 Mini Split: All-season solution with air conditioning, heat pump (functional up to 5F/-15C), dehumidifier, fan, and turbo function. Includes a DC Inverter that’s UL Listed, AHRI Certified, and works with Alexa.
  • Stylish & Functional Mini Split AC: Suitable for both home and business. Provides performance without compromising aesthetics. Ideal for bedrooms, living areas, stores, eateries, and warehouses.
  • Installation Package Included: Includes indoor air handler, outdoor condenser, remote control, and installation kit with a 16ft. line set and communication wire. Pre-loaded with refrigerant for up to 25 ft. Note: Professional installation required.
  • 5 Year Manufacturer’s Warranty: Includes 5 years on parts replacement and 5 years on the compressor. Senville offers complimentary technical assistance. Labor not included.
Updated: 5 hours ago

The Senville LETO Mini Split is a premium choice. With a 24,000 BTU capacity, it can easily handle larger spaces. The Alexa-enabled feature allows you to control it via voice, adding a modern touch. The unit also provides reliable heating for temperatures as low as 5°F.

Compared to others, this model shines in capacity and modern features. The integration with smart home systems is great for tech-savvy users. However, its energy efficiency is lower than smaller units, which may lead to higher utility costs.

The downside is that the higher capacity can result in energy bills that are not budget-friendly. If you prioritize energy savings, this might not be the best option for you.

Pros

  • 24,000 BTUs for large spaces
  • Alexa-enabled for smart home integration
  • Reliable heating down to 5°F

Cons

  • Higher energy usage compared to smaller units
  • May lead to increased electricity costs

Best for: Large homes and smart home users. Not ideal for: Budget-conscious buyers focusing on energy efficiency.

The Senville LETO Mini Split is great for large areas and tech users but may cost more to operate.

8. Best Value

Temprium 12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump

$549.99
in stock
Amazon.com
  • 【Unmatched Energy Efficiency with 22 SE2ER2】 Slash your utility bills with our advanced Inverter technology and industry-leading 22 SEER2 rating. Unlike standard units that constantly stop and start, our DC Inverter compressor adapts its speed to maintain the perfect temperature with minimal energy consumption. Paired with eco-friendly R32 refrigerant (GWP 675), this 115V mini split system delivers powerful 12,000 BTU cooling and 12,300 BTU heating while being kind to the environment. It’s the smart, green choice for your home.
  • 【Powerful & Fast Year-Round Comfort】 Designed for spaces up to 750 sq. ft., this ductless heat pump system keeps you comfortable no matter the weather. Whether it’s a scorching summer day in your living room or a chilly night in the bedroom, enjoy rapid cooling even at 122°F and reliable heating down to 5°F. Perfect for home offices, sunrooms, garages, or additions where extending central HVAC is not an option.
  • 【Library-Quiet Operation for Undisturbed Sleep】 Experience peace and quiet like never before. With noise levels as low as 23 dB (quieter than a whisper!), this mini split AC ensures your bedroom, nursery, or home library remains a tranquil sanctuary. Activate Sleep Mode, and the unit will automatically adjust temperatures and dim the display, creating the ideal environment for a deep, restful sleep without any distracting humming.
  • 【Total Control at Your Fingertips with WiFi & 7 Modes】 Stay in command from anywhere using the WiFi-enabled app or your voice via Alexa or Google Assistant. Forgot to turn off the AC? Use your phone. Want it cool before you arrive home? Schedule it. Plus, the backlit remote control gives you access to 7 operating modes (Auto/Cool/Heat/Dry/Fan/Sleep/ECO) and 7 fan speeds, along with convenient features like 4D auto swing, Turbo, and Follow-Me (I Feel) function for personalized comfort.
  • 【Easy Maintenance & Reliable After-Sales Support】 The 133°F high-temperature self-cleaning function helps keep the indoor coil clean and dry, reducing manual upkeep. The washable filter effectively captures dust and airborne particles. We provide comprehensive after-sales support and technical guidance to assist you with any questions, ensuring a smooth ownership experience from setup to everyday use. Trust in Temprium quality—this unit is ETL and AHRI certified for reliable performance and safety.
Updated: 5 hours ago

The Temprium 12000 BTU Mini Split AC/Heat Pump is among the best value options. It offers 22 SEER2, which is very efficient for energy savings. This advanced inverter technology adapts to maintain the desired temperature without wasting energy. The model fits well in medium spaces and delivers solid performance.

When compared to others, it outshines many with its high efficiency. While the YITAHOME has a lower SEER2, this model provides a great balance of performance and energy savings. The combination of quality and price makes it a strong contender.

A potential drawback is that it may not heat as well as higher BTU models in larger areas. If you need substantial cooling power for bigger spaces, consider a unit with a higher capacity. However, for standard rooms, it offers excellent value.

Pros

  • 22 SEER2 for excellent energy efficiency
  • Adapts to maintain perfect temperature
  • Great balance of performance and value

Cons

  • Not ideal for larger rooms needing higher BTUs
  • May struggle with heating in very cold areas

Best for: Value-seekers needing efficiency. Not ideal for: Large spaces requiring higher BTUs.

The Temprium Mini Split offers great value with top efficiency for medium rooms.

Mini Splits Compared Side by Side

In the comparison table below, you will find key specifications for each mini split. Columns include brand, BTU rating, SEER2 rating, and features. This will help you find the best diy mini split that fits your needs.

# Product Best for Brand Price Link
1 YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20… Editor's Choice YITAHOME $387.74 Check
2 Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2… Best Compact Rellytech $359.98 Check
3 Albott 12,000 BTU Mini Split Air Conditioner and Heater… Best for Beginners Happy Tao $399.99 Check
4 Rellytech Mini Split AC/Heating System Best Lightweight Rellytech $489.99 Check
5 Rellytech Mini Split AC/Heating System Best Premium Rellytech $349.99 Check
6 COSTWAY 12000BTU Mini Split Air Conditioner& Heater Best Splurge COSTWAY $499.99 Check
7 Senville LETO Mini Split Air Conditioner Best Heavy-Duty Senville $1249.99 Check
8 Temprium 12000 BTU Mini Split Air Conditioner Best Value Temprium $549.99 Check
9 Rellytech 17000 BTU Mini Split AC/Heating System 17 SEER2… — Rellytech $485.98 Check
10 Rellytech Mini Split AC/Heating System — Rellytech $309.99 Check

Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.

How We Reviewed

Where our data comes from

We gathered data from several online retailers and manufacturer websites. These sources provide honest product descriptions and user reviews. We focused on reliable brands known for their mini split systems.

How we built this shortlist

We examined over 20 mini split systems and narrowed it down based on energy efficiency ratings, BTU power, and features. Products with lower SEER2 ratings or poor user feedback were ruled out.

What we ruled out and why

Any unit with a SEER2 rating below 16 was excluded as it is less efficient. We also removed options without heating capabilities or those with low user ratings.

What we did not do

No hands-on testing was done, nor were lab measurements taken. We did not create any performance scores. All data comes from trusted sources.

How often this page is updated

This page is reviewed and updated every few months. We ensure that the information reflects the latest products available and current user reviews.

What to look for

Energy Efficiency

Energy efficiency is measured using the SEER2 rating. A higher SEER2 rating means better energy savings. Look for systems with a rating of 16 or above for optimal savings on your energy bill.

Cooling and Heating Capacity

The BTU rating tells you how much space the mini split can cool or heat. For small rooms, 9,000 to 12,000 BTUs is often sufficient. Larger areas may require units rated at 18,000 BTUs or more.

Modes and Features

Different modes like cooling, heating, and fan settings provide flexibility. Additional features like a timer, sleep mode, and smart controls can greatly enhance your comfort.

Installation and Maintenance

DIY installation is possible with many mini splits, but some may require professional help. Consider ease of maintenance, including cleaning filters and checking the outdoor unit.

Noise Levels

Noise levels are important for comfort, especially in bedrooms. Look for units with a low noise rating, generally below 50 dB, for quiet operation.

How to Choose Mini Splits

Understand BTU Requirements

Determine the size of the area you want to heat or cool. For a room size of 300 to 500 square feet, aim for a mini split with 12,000 BTUs. This ensures efficient performance.

Check for Energy Efficiency

Look at the SEER2 rating. A unit with a SEER2 rating of 20 or higher is considered very efficient. This will save on energy bills over time.

Consider the Modes Offered

Select a mini split that offers multiple modes. Options like cooling, heating, and dehumidifying can help meet all your comfort needs year-round.

Assess Installation Needs

Think about whether you can install it yourself or need professional help. Units designed for easy DIY installation can save you money.

Evaluate Noise Levels

Look for the noise level in decibels (dB). A quieter unit, under 50 dB, will be more comfortable for bedrooms and living areas.

Frequently asked questions

What is the best diy mini split?

The best diy mini split is the YITAHOME 12000 BTU Mini Split AC/Heating System. Its 20 SEER2 efficiency makes it a top choice.

How does a mini split work?

A mini split uses an outdoor unit that connects to one or more indoor units. The system circulates refrigerant to cool or heat your space.

Can I install a mini split myself?

Yes, many mini splits are designed for DIY installation, but some may require professional help. Check installation requirements before purchasing.

What size mini split do I need?

To find the right size, measure your room and choose a unit with the appropriate BTU rating. For 300 to 500 square feet, look for 12,000 BTUs.

How energy efficient are mini splits?

Mini splits can be highly energy efficient. Look for units with a SEER2 rating of 16 or above for significant energy savings.

About the author

Radhika Gupta

Radhika Gupta 12+ years

Editor, Best Under 2026

Radhika Gupta builds the buying guides on Best Under 2026. Every shortlist starts from the manufacturer specification and the live Amazon listing, then gets cut down by who the product actually suits. Nothing here is hands-on tested, and we do not pretend otherwise — where a guide names a drawback it comes from the spec sheet or from a pattern in buyer reports, not from a lab. Prices are pulled from Amazon and stamped with the date they were checked. If something here is wrong, email hello@bestunder2026.com and it gets fixed.

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