Contents
Choosing the right air conditioner can be tough. This mini split buying guide will help you compare options. The top pick is the YITAHOME 12000 BTU Mini Split AC/Heating System. It has a high SEER2 rating of 20, making it very energy-efficient. The best value option is the Rellytech 11500 BTU Mini Split. It sacrifices some cooling power but offers great features for a lower price.
Most buyers must choose between energy efficiency and cooling power. The YITAHOME excels in energy savings, while the Rellytech offers good performance at a lower cost. The rest of this page will help you understand other important factors to consider.
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The Top 8
Top 8 Mini Splits Reviewed in Detail
We will break down the features, pros, and cons of each mini split. This will help you make an informed choice.
1. Editor’s Choice
YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20 SEER2
- 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).
The YITAHOME 12000 BTU Mini Split AC/Heating System is a leading choice for energy efficiency. With a high SEER2 rating of 20, it conserves energy while providing excellent cooling and heating. This unit is suitable for spaces up to 750 square feet, making it ideal for various rooms. The inverter technology helps it maintain the perfect temperature without wasting energy.
Compared to other options, the YITAHOME outperforms many in energy savings. Its high efficiency means lower electricity bills over time. Other models like the Rellytech 11500 BTU Mini Split provide decent performance, but the YITAHOME ensures maximum comfort and savings. It also includes features like a timer and multiple modes for added convenience.
However, the tradeoff for its high efficiency is that it may come with a higher upfront cost. While many buyers appreciate the energy savings, those on a tight budget might find it more challenging to justify the initial expense.
Pros
- High SEER2 rating of 20 for energy efficiency
- Inverter technology for consistent temperature control
- Covers spaces up to 750 square feet
- Multiple modes for cooling and heating
Cons
- Higher upfront cost compared to some competitors
- Installation may require professional help
Best for: Energy-conscious buyers looking for efficient cooling and heating.
Not ideal for: Those on a tight budget.
The YITAHOME 12000 BTU Mini Split is perfect for anyone wanting to save on energy bills.
2. Best Compact
Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2 Ductless Inverter
- 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.
The Rellytech 11500 BTU Mini Split AC/Heating System is an excellent compact choice. It offers a solid cooling capacity of 11,500 BTU, making it suitable for spaces up to 550 square feet. This unit can heat reliably down to -4°F, ensuring comfort even in cold weather. Its various modes, including Turbo and Eco, provide flexibility for different needs.
Compared to larger units, the Rellytech is easier to fit in smaller spaces without sacrificing functionality. While it lacks the high SEER2 rating of the YITAHOME, it offers impressive performance for its size. Other models like the Albott 12,000 BTU Mini Split may offer more BTUs but at a bulkier size.
One limitation is its slightly lower energy efficiency with a SEER2 rating of 17. This means it may not save as much on energy bills compared to more efficient models. However, its versatility and compact design make it a great choice for smaller areas.
Pros
- Compact design suitable for smaller spaces
- Reliable heating down to -4°F
- Multiple modes for cooling and heating
- User-friendly remote control
Cons
- Lower SEER2 rating of 17 for energy efficiency
- Cooling capacity may be less for larger rooms
Best for: Those needing a compact mini split for small spaces.
Not ideal for: Larger rooms requiring high BTU output.
The Rellytech 11500 BTU Mini Split is a smart choice for smaller areas and all-season comfort.
3. Best Value
Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V
- 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
The Albott 12,000 BTU Mini Split Air Conditioner and Heater provides great value for comfort. This unit offers a SEER2 rating of 18, which balances efficiency and performance. It has a range of cooling and heating modes, making it versatile for different seasons. The 24-hour timer and sleep mode enhance everyday convenience for users.
When comparing with the top picks, the Albott offers similar BTU output to the YITAHOME but at a lower price. It provides good features for anyone seeking a reliable mini split system. The Rellytech models also present solid choices but may not include as many convenience features as the Albott.
However, it might not deliver the same energy savings as the YITAHOME. While efficient, it does not match the highest SEER2 ratings, which could lead to slightly higher energy costs over time. Overall, it’s an excellent option for most users while keeping costs in check.
Pros
- SEER2 rating of 18 for decent energy efficiency
- Multiple operating modes for year-round comfort
- User-friendly timer and sleep mode
- Covers spaces up to 750 square feet
Cons
- Not as energy efficient as higher-rated models
- Limited heating effectiveness in very cold climates
Best for: Buyers looking for balanced performance and value.
Not ideal for: Extremely cold areas needing strong heating.
The Albott 12,000 BTU Mini Split offers reliable performance for diverse climates at a great value.
4. Best Design
Rellytech Mini Split AC/Heating System, 18000 BTU, 19 SEER2 208-230V
- 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
The Rellytech Mini Split AC/Heating System with 18,000 BTU is a powerful option. It cools and heats large spaces up to 1,250 square feet effectively. With a SEER2 rating of 19, it offers excellent energy efficiency for its size. This unit is designed for whole-home comfort and performs reliably in various conditions.
When compared to others like the YITAHOME, it provides more BTUs for larger areas, but at a slightly lower SEER2 rating. The YITAHOME focuses more on energy savings, making it suitable for smaller spaces. However, for buyers needing more power, the Rellytech delivers exceptional performance for whole-home use.
One limitation is its size. It may not fit in smaller spaces or for users needing a compact solution. However, its powerful cooling and heating capabilities make it a great choice for larger rooms or homes.
Pros
- Cools and heats up to 1,250 square feet
- High BTU output for powerful performance
- SEER2 rating of 19 for efficiency
- Multiple modes for comfort
Cons
- Larger size may not fit in small spaces
- Higher installation requirements for larger units
Best for: Users needing to cool or heat large areas effectively.
Not ideal for: Small spaces or apartments.
The Rellytech 18,000 BTU Mini Split is ideal for whole-home comfort and powerful performance.
5. Best Heavy-Duty
Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V
- 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.
The Rellytech Mini Split AC/Heating System with 12,000 BTU is a reliable option. It provides solid performance for spaces up to 750 square feet. With a SEER2 rating of 19, it offers good energy efficiency. This model has a temperature range from 61°F to 88°F, ensuring consistent temperature control throughout the year.
In comparison with the YITAHOME and Albott models, this system provides a great balance of cooling and heating capabilities. Its SEER2 rating is competitive, making it efficient for average-sized rooms. While not as powerful as the larger Rellytech 18,000 BTU, it offers a good choice for smaller spaces or individual rooms.
However, it may not perform as well in extreme temperature conditions. Users looking for very high performance might find it less effective than other models. But for regular home use, it provides reliable comfort.
Pros
- Cools and heats up to 750 square feet
- SEER2 rating of 19 for energy efficiency
- Temperature control range from 61°F to 88°F
- User-friendly remote control
Cons
- Not as powerful as larger mini splits
- May struggle in extreme cold or heat
Best for: Users needing reliable performance in smaller spaces.
Not ideal for: Large homes or extreme temperatures.
The Rellytech 12,000 BTU Mini Split offers dependable comfort for average-sized rooms.
6. Best Budget
COSTWAY 12000BTU Mini Split Air Conditioner& Heater
- [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.
The COSTWAY 12000BTU Mini Split AC/Heater provides good performance for everyday use. It includes an AHRI Certified heat pump which helps maintain comfort year-round. With its inverter technology, it can adjust power supply to save energy. This makes it efficient for cooling and heating needs.
Compared to other options like the Rellytech and YITAHOME, it offers similar BTU output but may not have the same energy efficiency features. While it provides solid performance, its SEER2 rating may not be as high as others, potentially leading to higher energy costs.
One limitation is that it may require professional installation due to its setup. This might be inconvenient for some users who prefer easy installation options. However, it is a good choice for users looking for reliability and basic functions.
Pros
- AHRI Certified for safety and efficiency
- Inverter technology for energy savings
- Cools and heats effectively
- User-friendly remote control
Cons
- Installation may require professional help
- Lower SEER2 rating compared to top models
Best for: Buyers seeking reliable performance without extra features.
Not ideal for: Those needing high energy efficiency.
The COSTWAY 12000BTU Mini Split is a solid choice for everyday comfort.
7. Best Lightweight
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 24000 BTU
- 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.
The Senville LETO Mini Split AC/Heating System with 24,000 BTU is a great design choice. It features Alexa compatibility, allowing voice control for added convenience. This unit can cool and heat larger spaces effectively and has a SEER2 rating that ensures energy efficiency.
In comparison to smaller models, the Senville offers powerful performance for big rooms or open layouts. Other models, like the Rellytech 18,000 BTU, may not have the same smart features but provide solid cooling capabilities. If technology integration is important, the Senville is a standout option.
However, its size may not be suitable for compact spaces. Users with smaller rooms may find it hard to install this larger model. Yet for those needing impressive power and smart features, it is an excellent choice.
Pros
- Alexa enabled for voice control
- Cools and heats large spaces effectively
- High BTU output for strong performance
- Energy-efficient design
Cons
- Too large for small spaces
- Higher installation requirements
Best for: Users looking for powerful performance and smart technology.
Not ideal for: Small areas or limited installation options.
The Senville LETO Mini Split is an excellent choice for tech-savvy users needing powerful cooling and heating.
8. Best for Daily Use
Temprium 12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump
- 【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.
The Temprium 12000 BTU Mini Split AC/Heat Pump is designed for daily use. It features an advanced inverter technology with a SEER2 rating of 22. This high efficiency helps keep energy costs low while maintaining comfort. The system is suitable for spaces up to 750 square feet.
Compared to other models, the Temprium offers one of the highest energy efficiency ratings available. This makes it a top choice for energy-conscious buyers. While the YITAHOME also provides great efficiency, the Temprium edges ahead in overall performance and utility savings.
The downside is that its higher efficiency rating could come with a higher initial investment. Some users may find it challenging to justify this upfront cost. However, those focused on long-term savings will appreciate its benefits.
Pros
- High SEER2 rating of 22 for energy efficiency
- Advanced inverter technology for consistent temperature control
- Cools and heats effectively for up to 750 square feet
- User-friendly design for ease of use
Cons
- Higher upfront cost compared to others
- May require professional installation
Best for: Energy-conscious buyers looking for efficient daily use.
Not ideal for: Budget-minded shoppers seeking low-cost options.
The Temprium 12000 BTU Mini Split is perfect for daily comfort with impressive energy savings.
Mini Splits Compared Side by Side
In the table below, you will find key specifications for each mini split unit. The columns show the brand, BTU output, and SEER2 rating. Review this mini split buying guide to see which model fits your needs best.
| # | 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 Value | Happy Tao | $399.99 | Check |
| 4 | Rellytech Mini Split AC/Heating System | Best Design | Rellytech | $489.99 | Check |
| 5 | Rellytech Mini Split AC/Heating System | Best Heavy-Duty | Rellytech | $349.99 | Check |
| 6 | COSTWAY 12000BTU Mini Split Air Conditioner& Heater | Best Budget | COSTWAY | $499.99 | Check |
| 7 | Senville LETO Mini Split Air Conditioner | Best Lightweight | Senville | $1249.99 | Check |
| 8 | Temprium 12000 BTU Mini Split Air Conditioner | Best for Daily Use | 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 reliable sources, including manufacturer specifications and customer reviews. We focused on mini split systems available on major retail sites. This ensures you get accurate and up-to-date information.
How we built this shortlist
Our shortlist includes eight mini split systems. We filtered out models that did not meet a minimum SEER2 rating of 17. We also considered customer satisfaction ratings and features that contribute to energy efficiency.
What we ruled out and why
We ruled out any models with poor reviews or low energy efficiency ratings. Systems with low BTU output for their size were also excluded. This helps ensure only the best options are presented.
What we did not do
No hands-on testing was conducted for this article. We did not take lab measurements or create scores based on subjective opinions. All information is based on data from trusted sources.
How often this page is updated
This page will be reviewed and updated every three months. We will check for new products and any changes to existing models. You can trust that the information remains current.
What to look for
BTU Output
BTU stands for British Thermal Unit. It measures the cooling and heating capacity of an air conditioner. To choose the right BTU output, consider the size of the room. For every 100-150 square feet, you will need about 5,000 BTUs. Matching the BTUs to your room size ensures effective temperature control.
SEER2 Rating
SEER2 stands for Seasonal Energy Efficiency Ratio. A higher SEER2 rating means better energy efficiency. Aim for a SEER2 rating of at least 17 for good performance. This can help save you money on energy bills while keeping your home comfortable.
Heating Capabilities
Some mini split systems also provide heating. Look for models that can operate efficiently in cold temperatures. Systems that heat down to -4°F are ideal for colder climates. This feature can help you save on heating costs in winter.
Noise Level
Noise level is important for comfort. Air conditioners are rated in decibels (dB). Look for models with a noise level below 60 dB for quiet operation. This is especially important for bedrooms or quiet spaces.
Smart Features
Some mini splits come with smart features like Wi-Fi control. This allows you to adjust settings from your phone. Look for models that integrate with home automation systems for added convenience. Smart features can enhance comfort and save energy.
How to Choose Mini Splits
Determine Your Room Size
Measure the dimensions of the room where you will install the mini split. This will help you choose the right BTU output. For a small room, around 100-150 square feet, 5,000 BTUs are ideal. Larger spaces will require more BTUs, so assess your needs carefully.
Consider Energy Efficiency
Look at the SEER2 rating of the mini split. A higher rating means lower energy costs. Aim for at least a SEER2 of 17. This will ensure you get an efficient model that helps reduce your electric bill.
Evaluate Heating Needs
If you live in a colder area, check the heating capabilities. Some models operate efficiently at low outdoor temperatures, like -4°F. This feature can save you money on heating costs in winter months.
Check Noise Levels
Look for the noise level rating in decibels (dB). A quieter unit is better for bedrooms or quiet living spaces. Aim for a noise level below 60 dB for a comfortable environment.
Explore Smart Features
Consider whether you want smart features like Wi-Fi control. This lets you adjust settings remotely. Models that work with smart home systems can be more convenient and help manage energy use.
Frequently asked questions
What is a mini split?
A mini split is a type of air conditioner that can heat and cool a space. It consists of an indoor and outdoor unit connected by refrigerant lines.
How do I know what size mini split to buy?
To choose the right size, measure your room and determine the BTU needed. For every 100-150 square feet, you typically need about 5,000 BTUs.
What does SEER2 mean?
SEER2 stands for Seasonal Energy Efficiency Ratio. It measures how efficiently an air conditioner uses energy over a cooling season.
Can mini splits heat in winter?
Yes, many mini splits can heat spaces in winter. Some models work efficiently at very low outdoor temperatures.
Are mini splits noisy?
Noise levels vary by model. Look for units with noise levels below 60 dB for quieter operation.
Shopping around? We have 34 more mini split guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA guide to home air cleaners U.S. Environmental Protection Agency
- EPA radon guidance U.S. Environmental Protection Agency
About the author
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