Ductless mini-split systems, often called mini-splits, involve one or a few wall-mounted units inside your house and are powered by an outdoor compressor unit.
As a result, you have more control over these air conditioning systems than other types and have additional features, too; you can use a ductless mini-split system for different seasons and temperatures, and it's relatively easy and inexpensive to install.
You might think you don't have the correct wiring or HVAC system for these indoor units. However, mini splits air conditioning systems have the benefit of being ductless. This is why ductless air conditioners have become a popular choice for those wanting an efficient cooling system.
Check out our reviews on the 7 best ductless air conditioners currently available on the market.
We've also included a buyer's guide that'll give you guidance on the features and factors such as installation suitabilities and your area of cooling. So, continue reading to find out everything you need to know about ductless mini-split systems.
Comparison Table:
| Mini Split AC | SEER Rating | EER Rating | HSPF Rating | Noise Levels | Air Flow | Voltage |
| MRCOOL DIY-12-HP-115B | 22 | 12.7 | 10 | 23.5-38dB | 533 CFM | 220-240V |
| Cooper And Hunter | 21.5 | N/A | 11.2 | 23-36dB | N/A | 115-230V |
| LG Inverter V | 21.4 | 12.5 | 11.4 | 19-39dB | 459 CFM | 220-240V |
| Senville SENA | 19 | 10.5 | 8.5 | 24-43dB | 418 CFM | 110-120V |
| PIONEER | 19 | 10.5 | 9.5 | 24-40dB | 500 CFM | 110-120V |
| Klimaire | 19 | N/A | 9.5 | 28-38dB | 294 CFM | 115V |
| DAIKIN RXB12AXVJU | 17 | 10.5 | 8.5 | 30-41dB | 358 CFM | 208V |
Best Ductless AC Units
We've reviewed the best 7 ductless air conditioners that cater well to many needs. We've equally reviewed known brands, less popular brands, and price ranges, so there's something for everyone on this list.
1. MRCOOL DIY-12-HP-115B - Best Overall
| SEER | 22 |
| EER | 12.7 |
| HSPF | 10 |
| BTU | 12,000 |
| Voltage | 220-240V |
| Noise (indoor) | 23.5-38dB |
| Noise (outdoor) | 49dB |
| Dehumidification | 2.5 pt/h |
| Air flow | 533 CFM |
This MRCOOL DIY is the highest-rated SEER mini-split system. This 3rd generation ductless air conditioner boasts excellent energy-saving ratings.
Yet, that's not all; MRCOOL's ductless air conditioner has an efficient heat pump and an excellent HSPF rating of 10, which puts all other mini-split systems to shame.
Furthermore, it has made an engineering breakthrough thanks to its inverter compressor, which allows for fantastic airflow. Its indoor unit connects to an outdoor machine mounted on an outdoor wall, ensuring that the slight 49dB noise level it generates stays outdoors so that you get cold air and peace of mind indoors.
With this ductless AC system comes a handy dehumidification function to maintain comfortable conditions. It also switches to sleep mode with its remote control addition, making it the best ductless air conditioner for your money.
The unit’s only drawback is the high voltage requirements, but its reliability and energy-saving benefits mean it'll be cost-effective in the long run.
Pros:
- Very high SEER and EER levels
- Energy-saving sleep mode
- One of the quietest ductless air conditioning units available
- Heats and dehumidifies
- Simple installation
- Quality air conditioning materials
- Remote control addition
Cons:
- High voltage requirements
- A bit pricey
2. Cooper And Hunter - Smartest Choice
| SEER | 21.5 |
| EER | N/a |
| HSPF | 11.2 |
| BTU | 12,000 |
| Voltage | 115-230V |
| Noise (indoor) | 23-36dB |
| Noise (outdoor) | 52.5dB |
| Dehumidification | N/a |
| Air flow | N/a |
Cooper & Hunter's ductless air conditioner comes with a whopping SEER of 20, way better than most ductless air conditioners. Despite this, they've managed to maintain an affordable price tag for their customers. Additionally, this mini-split system comes with a handy 11.2 HSPF heater, making it ideal for those living in countries with variable seasons.
This ductless air conditioner has a rotary compressor, which results in weak dehumidification. Nonetheless, you get the convenience of WiFi connectivity through USB and sleep mode with remote control. Not to mention, you're provided with a DIY installation kit.
It also comes with a step-by-step installation guide to help you connect one outdoor unit with an indoor unit. There’s also a 5-7 year warranty covering it, so you needn't worry about malfunctions setting you back.
A standard voltage of 115V is all that's required to give you the quiet operation of 23-36 max dB. It’s one of the quietest mini-split systems with a whisper-silent indoor unit, an excellent choice to add to the list.
Pros:
- DIY Installation
- Excellent SEER and heating system
- Smart WiFi mini-split system
- Affordable
Cons:
- Low dehumidification levels
- Low airflow levels
3. LG Inverter V LS120HSV5 - The Quietest
| SEER | 21.4 |
| EER | 12.5 |
| HSPF | 11.4 |
| BTU | 12,000 |
| Voltage | 220-240V |
| Noise (indoor) | 19-39dB |
| Noise (outdoor) | 48dB |
| Dehumidification | N/a |
| Air flow | 459 CFM |
This is LG's best-rated ductless mini-split air conditioner, being the quietest, reliable, and energy-efficient. This mini-split system has indoor units that operate whisper silently, especially when on its low setting. Moreover, its outdoor machine is powered by a smooth V compressor that provides quiet operation.
LG is a reputable brand in producing high-quality air conditioning units, ductless air conditioner units, and HVAC goods. Therefore, this LG ductless mini-split system would rarely require fixes and maintenance costs, making it super reliable.
The unit sports an excellent 22.7 SEER and 11.4 HSPF, so you're guaranteed to save costs in the long run and prevent unnecessary energy consumption.
This LG AC system requires high voltage. However, its 5-year warranty ensures peace of mind, and with a 459 CFM airflow, providing conditioned air, it's hard not to be tempted with such incredible capacity meeting most cooling needs.
Pros:
- Operates quietly
- Reliable ductless air conditioner - little maintenance required
- High cooling and heating function
- Powerful 'V Compressor' - quality materials
- Reputable brand
Cons:
- Requires high voltage
- Expensive
4. Senville SENA-12HF/Z - Most Budget-Friendly
| SEER | 19 |
| EER | 10.5 |
| HSPF | 8.5 |
| BTU | 12,000 |
| Voltage | 110-120V |
| Noise (indoor) | 24-43dB |
| Noise (outdoor) | 56dB |
| Dehumidification | 2.54 pt/h |
| Air flow | 418 CFM |
This ductless mini-split system by Senville has the best cost-benefit advantages, boasting 4-in-1 functions: ductless air conditioning, heating, fanning, and dehumidifying, all at an affordable price. With this one, you also save on professional installation costs as it comes with a full installation kit.
A competitive SEER level of 19 makes this mini split air conditioner a bestseller yet an affordable one. Additionally, it has a strong dehumidifier function that's coupled with an impressive airflow of 418 CFM, ensuring you'll never feel clammy in your home again.
It falls behind a little on the noise it produces outside and in your living space. It also has a low HSPF heating level compared to its competitors. Still, Senville has had to compromise somewhere with their mega affordable, best seller 4-in-1 multi-functional ductless air conditioner with remote control.
Finally, it comes with an excellent 7-year warranty and enables standard voltage use, rendering it perfect for all electricity grids.
Pros:
- Affordable
- 7-year warranty
- Great cooling and heating function with dehumidifier (4-in-1 functions)
- Standard voltage
- Strong airflow
Cons:
- Can be noisy for some (more so for the outside unit)
- Heating is only effective at a level of 8.5
5. PIONEER WYS012GMFI17R - Most Powerful Compressor
| SEER | 19 |
| EER | 10.5 |
| HSPF | 9.5 |
| BTU | 12,000 |
| Voltage | 110-120V |
| Noise (indoor) | 24-40dB |
| Noise (outdoor) | 54dB |
| Dehumidification | 2.54 pt/h |
| Air flow | 500 CFM |
Pioneer's super affordable ductless air conditioner has incredible specs and thoughtfully engineered construction, thanks to its powerful Toshiba compressor. Pioneer ingeniously decided its best to have the best engineering experts take part in their design package to deliver quality mini-split systems with inverter-type compressors.
As a result, they've scored SEER levels at 19 in their ductless mini-split air conditioner, HSPF at 9.5, and a whopping 500 CFM cool air rating to top it all off.
Everyone knows how Toshiba has a track record of reliability which avoids maintenance costs. Pioneer's mini split AC unit does come with negotiable noise production, though, but that's only outside, not in your living space - it's what's inside that counts, of course.
This ductless AC also comes with an energy-efficient heating and dehumidifying system, which you can run on a standard voltage level.
Pros:
- Great SEER levels
- Affordable
- DIY installation kit provided
- Beastly Toshiba inverter compressor
- Cooling and heating capacity
- Includes a dehumidifier
- Strong airflow
Cons:
- Noisy outdoor unit
6. Klimaire B07TDR51BW - Easiest Installation
| SEER | 19 |
| EER | N/a |
| HSPF | 9.5 |
| BTU | 12,000 |
| Voltage | 115V |
| Noise (indoor) | 28-38dB |
| Noise (outdoor) | 55dB |
| Dehumidification | N/a |
| Air flow | 294 CFM |
Relatively new to the scene, Klimaire's mini split unit comes with a convenient full installation kit, so you can save on professional installation charges and have your mini split air conditioner up and running before you know it.
This ductless air conditioner works by a weak inverter compressor - now that may sound bad, but it's the secret behind this air conditioner's low 28dB noise production. As a result, it has lower airflow, but both outside and inside spaces maintain silence.
This mini split air conditioner comes with an enviable 19 SEER and a high HSPF rating. It can maintain low energy bills, and because of its economical materials, it's cheaper than its competitors.
Additionally, this air conditioner by Klimaire runs on a standard voltage, providing cool air and heating and ensures all-around cost savings for the future.
Pros:
- Great SEER levels
- Quiet operation both indoor and outdoor
- Standard voltage
- Heating and cooling capacity
- Works as a dehumidifier
- Affordable
Cons:
- Weak compressor
- Low airflow
7. DAIKIN RXB12AXVJU - Best Warranty
| SEER | 17 |
| EER | 10.5 |
| HSPF | 8.5 |
| BTU | 12,000 |
| Voltage | 208V |
| Noise (indoor) | 30-41dB |
| Noise (outdoor) | 48dB |
| Dehumidification | N/a |
| Air flow | 358 CFM |
This affordable mini split air conditioner from the reputable brand Daikin comes with solid reliability. With a good energy SEER rating of 17 and HSPF of 8.5, it maintains middle-of-the-road specs yet ample versatility to get you through your days. This ductless mini-split comes with a DIY kit for your convenience as well.
Additionally, average noise levels and airflow coupled with excellent reliability and multiple fan speeds means you can benefit from comfortable conditions in your home without breaking the bank. The best part is that you're given a 10-year warranty with this mini split air conditioner, so you don't have to break a sweat with AC meltdowns.
Pros:
- Reliable design
- Heater and dehumidifier
- 10-year warranty
- DIY kit
- Budget-friendly
Cons:
- May be noisy for some
- Weak airflow
- Not as energy-efficient as other options
Ductless Mini-Split System - Buying Guide
We're going to set out guidance on ductless air conditioners to help you decide which one is right for you. Firstly, it's essential to highlight whether ductless mini-split air conditioners are worth your money and time, and secondly, decide which factors to consider when purchasing your mini-split air conditioner.
Are Ductless Mini-Split Systems Worth It?
Many homeowners often find themselves stuck on which AC system to select and think that if they want an AC in their homes, then a central AC system will need to be installed or existing ductwork must be present. Others believe regular wall-mounted air conditioners and window air conditioners are superior.
With mini-split ACs, the installation process is so easy. Also, these ductless air conditioners allow for flexibility and control, not requiring a ducted system, while giving the same effects as a central HVAC system. Other benefits include:
Multi-Zone Flexibility
Mini-split AC cooling systems give you incredible flexibility. You can pick a room that requires cooling and install single zone systems to the wall, without the need for any windows. That makes these units ideal for stuffy basements.
Or, you can create a multi-zone system through your home for multiple rooms, and unlike a central AC, you can switch things around at any time.
No Ducts
Ductless mini-split air systems require no ducts! Having a ductless unit assists the central AC system with sharing the load of cooling.
Quietness
A significant benefit of mini-split units is their quiet operation. The noise is left outside thanks to the outdoor unit that makes the bulk of the noise with ductless mini-split air conditioners. Many of the models we reviewed have noise production levels below 50dB, beating window units any day.
Energy Efficiency
Most ductless mini splits air conditioners come with excellent SEER and EER ratings of 20 and above. You don't get this level of efficiency with a regular window AC unit, and that's because of zone cooling. Only the areas that need targeted cooling can be cooled. Accordingly, you benefit from climate control and avoid energy wastage.
Heating
A mini-split AC ductless system often includes a highly efficient heating system that lets out warm air, making it ideal for the winter. Having a heating system takes the load of the central air conditioner or other indoor air handlers, saving overall electricity consumption.
Factors to Consider When Choosing the Best Ductless Air Conditioner
Energy Efficiency
Two energy efficiency terms to understand are the SEER (Seasonal Energy Efficiency Ratio) and the HSPF (Heating Seasonal Performance Factor). The former measures how energy efficient the cooling production of the mini-split AC is. A higher SEER level indicates better energy efficiency.
The other term, HSPF, is nearly the same thing as SEER, but instead of cooling, it measures the energy efficiency of heating.
When choosing your ductless air conditioner, it's essential to look at both the SEER and HSPF because these machines are designed to be used for heating and cooling. Another reason why it's necessary to look at both these energy-saving factors is because they significantly impact your electricity bill and reduce energy use.
For both summer and winter months, either heating and cooling function would have to be used, and therefore, the more cost-effective their performance is, the more you'll be saving in the long run. Often it's the pricier mini split ACs that have high SEER and HSPF ratings, but at the end of the day, you get your return through the money you save through your energy bills.
Number of Units
If you require a ductless AC unit in specific rooms, a single room, or a small house, you'd benefit from single-zone units, while for several rooms or an entire house, a multi-zone system would be better. A multi-zone mini-split system will handle about 6 rooms with one compressor and can be embedded into the whole house system.
Multi-zone mini splits are beneficial for large spaces and rooms, and as each indoor unit operates independently, you can get customized heating and cooling that meet your exact needs.
Cooling Requirements and Area Size
BTU or British Thermal Units measure the cooling power of a ductless AC. The higher the BTU numbers, the more square footage the unit can accommodate. So, for large areas, consider a machine that has a high BTU number so that it can cool effectively.
Before setting out and buying your mini split AC, measure the square footage in the rooms you need it in, and match that up with the suitable BTU number indicated in the table below to ensure you select the appropriate unit.
| Room Square Footage | BTU Required |
| 100-350 sq ft 350-500 sq ft 500-700 sq ft 700-900 sq ft 900-1000 sq ft |
9,000 BTU 12,000 BTU 18,000 BTU 24,000 BTU 30,000 BTU |
FAQs
Are Ductless Mini-Splits Expensive to Run?
That depends on the mini-split model you have, the size of your home, and how often you use the unit. But the major player here is the energy efficiency of the system you choose.
Can I Install a Ductless AC Myself?
Yes! With most units, especially those that come with installation kits, you won’t need to do anything more than dig a 3-inch hole in your wall. However, some units might require a professional to cut and recharge the refrigerant line.
Do You Need a Mini-Split AC in Every Room?
No! One mini-split can cover your whole house. In fact, many homeowners use the system to zone the whole house, which allows them to adjust the temperature of each room depending on which needs more heating or cooling.
Conclusion
Choosing the best mini-split air conditioner for your needs ensures that you have the most cost-effective solution for your home.
Most units will require considerations such as the room size or square feet, the number of rooms or spaces requiring ventilation, installation type, and energy usage to get the most out of your home's central air conditioning.
If saving on electricity costs is important to you, prioritizing SEER and EER should be number one on your considerations list. The MRCOOL DIY and LG Inverter V are amongst the best in this faculty, ensuring saved costs after your initial investment.
At the same time, you can't go wrong with the modest price that Pioneer's AC unit offers; its powerful Toshiba machine combines reliable performance and great specs at an affordable cost. Senville's unit, on the other hand, combines its ductless mini split ac with 3 functions, giving you ultimate versatility and multi-usage flexibility.
