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7 Most Efficient Mini Split AC Units In 2024 (20+ SEER)

CEO Quynh FLower

Introduction: Are you looking for an energy-efficient air conditioning option that can provide exceptional cooling power while saving on electricity costs? Look no further than ductless mini-split AC units. These units have gained popularity due...

Introduction:

Are you looking for an energy-efficient air conditioning option that can provide exceptional cooling power while saving on electricity costs? Look no further than ductless mini-split AC units. These units have gained popularity due to their high SEER ratings, indicating their energy efficiency. In this article, we will explore the top-rated mini-split air conditioner systems in 2024, based on specifications like SEER rating. Here, we present a comprehensive comparison of the best mini-split AC units, offering valuable insights to help you make an informed decision.

What Makes Mini Split System Air Conditioners So Efficient?

The beauty of a mini-split system lies in its ability to keep the noise and fuss outside the house while maintaining comfort and energy efficiency indoors. These systems comprise four main components: the outdoor unit, the indoor unit, refrigerant lines, and a remote control or mobile app for easy operation. The outdoor unit houses the compressor, while the indoor unit contains cooling coils, an air filter, and a blower. Refrigerant lines connect the outdoor and indoor units, enabling efficient heat exchange. The remote control or mobile app allows you to adjust temperature settings and set timers with ease.

Fig: Inside view of a ductless mini split air conditioner

With mini-split systems, you have the flexibility to connect multiple indoor units to a single outdoor unit. While some powerful units can accommodate up to five indoor units, most people prefer single-zone mini-split ACs. The following comparison focuses solely on single-zone mini-split AC systems.

Benefits of Using a Ductless AC

Ductless air conditioners offer several advantages over traditional ducted systems or room air conditioners:

  1. No ducts: Unlike central air conditioners, ductless units do not require extensive ductwork. They can function as standalone ACs or complement an existing central system.

  2. Zone cooling: With a mini-split unit, you can choose which room to cool, allowing for personalized comfort. Whether you want to cool your bedroom, basement, or any other specific area, the installation process is relatively simple.

  3. Quiet operation: Since the outdoor unit contains the compressor, the indoor mini-split AC unit operates quietly, making it ideal for bedrooms and other noise-sensitive spaces. Noise levels can even go below 50 dB, surpassing those of window or portable air conditioners.

  4. Energy efficiency: Ductless AC units from reputable brands offer SEER ratings of 20 or higher, ensuring remarkable energy efficiency. With zone cooling, you only cool the rooms you need, eliminating wastage and reducing energy consumption.

  5. Heating capabilities: Many ductless AC units also provide efficient heating during colder months. This multifunctionality makes them a cost-effective choice for year-round comfort.

Key Factors to Consider When Buying a Mini-Split Unit

Not all ductless AC units are created equal. To ensure you choose the best unit for your needs, consider the following factors:

1. Right Capacity in BTU (Be Aware of Voltage)

To determine the appropriate cooling capacity for your space, multiply the room size in square feet by 20-30 to get a BTU value. A higher value ensures the system is not underpowered. For example, a 12,000 BTU unit is suitable for rooms measuring 350-500 square feet. Keep in mind that higher-capacity units may require a higher voltage, such as 208/230V, necessitating additional installation costs.

2. Choose a Reliable Brand

Selecting a reputable brand is crucial for reliability and longevity. Well-established brands like MrCOOL, PIONEER, Bosch, GREE, LG, and Mitsubishi have extensive experience in the industry and a proven track record. While lesser-known brands may offer lower prices, they may lack the same level of trustworthiness. Smaller brands like DELLA and Klimaire strive to build their reputation by offering reliable models at competitive prices.

3. Energy Efficiency and Price (SEER and HSPF)

Consider the SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings to evaluate energy efficiency. These metrics indicate how efficient the unit is in cooling and heating modes, respectively. Higher SEER and HSPF ratings result in lower electricity bills. Keep in mind that high SEER and HSPF units often come at a higher cost, but the savings over time can outweigh the initial investment.

Comparison of the Best 12,000 BTU Ductless Mini Split AC Units

Now, let's delve into the top-rated 12,000 BTU ductless mini-split AC units available in the market:

1. MRCOOL DIY DIY-12-HP-115B 3rd Gen (Best DIY Mini Split AC Unit)

The MRCOOL DIY DIY-12-HP-115B 3rd Gen stands out with its exceptional specifications. With a SEER rating of 22 and an HSPF rating of 10, this unit promises outstanding energy efficiency for both cooling and heating. MRCOOL's reliable inverter compressor enables impressive airflow of 533 CFM. Despite its power, the unit operates quietly, with noise levels staying below 50 dB. The MRCOOL DIY 3rd Gen comes in various capacities, including 12,000 BTU, 18,000 BTU, 24,000 BTU, and 36,000 BTU.

Fig: MRCOOL DIY DIY-12-HP-115B 3rd Gen mini split air conditioner

2. GREE Vireo+ 22 SEER (Most Reliable Mini-Split Air Conditioner)

The GREE Vireo+ series combines superb energy efficiency (22 SEER) with reliability and Wi-Fi connectivity. With a rotary compressor generating up to 400 CFM airflow, GREE Vireo+ offers powerful cooling. The brand's extensive experience ensures impressive reliability, making it a top choice for HVAC installers. The noise levels stay within reasonable limits, making it an excellent option for quiet operation.

3. COOPER AND HUNTER Sophia 21.5 SEER (Energy Star Quietest Mini-Split With DIY Installation)

The COOPER AND HUNTER Sophia series offers tremendous value for its price. With a SEER rating of 21.5, this unit is remarkably energy-efficient. Its noise levels are impressively low, creating a peaceful environment. The installation process is hassle-free, and with the included DIY installation kit, you can save on installation costs. COOPER AND HUNTER provide a 5-year warranty for parts and a 7-year warranty for the compressor.

4. Bosch Quiet 20.7 SEER (Reliable Mini-Split With the Best Warranty)

Bosch is a trusted brand known for its reliability. Their 12,000 BTU mini-split air conditioner boasts a SEER rating of 20.7 and an HSPF rating of 9.6. While its airflow levels are slightly lower than some competitors, it offers quiet operation with noise levels below 40 dB. Bosch's 5-year parts and 7-year compressor warranty ensure peace of mind.

5. PIONEER Diamante 20 SEER (Cheapest Mini-Split Air Conditioner with Superb Energy Efficiency)

PIONEER Diamante stands out as an affordable option with impressive specs. Thanks to the integration of Toshiba's ASN98D22UFZ compressor, this unit achieves a SEER rating of 20. It offers powerful cooling and efficient heating, making it suitable for year-round use. With noise levels as low as 34 dB, it ensures quiet operation. Pioneer offers a range of capacities, allowing you to find the perfect fit for your space.

6. Della 12,000 BTU 20 SEER (Good Mini-Split For Less Than $1,000)

The Della mini-split air conditioner offers excellent cost-effectiveness with its 4-in-1 functionality as an AC, heater, fan, and dehumidifier. With a SEER rating of 20, it provides efficient cooling. The DIY installation kit makes it easy to set up, and the 110/120V power requirement eliminates the need for electrical upgrades. While detailed airflow and noise level specifications are not available, the Della unit delivers reliable performance at an affordable price.

7. Klimaire KSIV 19 SEER (Up-And-Coming Inexpensive Mini-Split AC Brand)

Klimaire's KSIV model offers a cost-effective solution with a SEER rating of 19. With noise levels as low as 25 dB, it stands out as one of the quietest mini-split AC units. The KSIV012-H119-S(W) DC inverter compressor ensures efficient and reliable performance. Klimaire offers various capacities, providing flexibility for different room sizes.

Help Us Upgrade and Improve the List With Your Suggestions

We hope this list helps you make an informed decision about the best mini-split AC unit for your needs. We value your input, and if you have personal experience with any of these units or are an HVAC installer, feel free to share your insights in the comments section. We continuously update our list to include the latest models with high specifications.

Thank you for reading, and happy cooling!

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