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10 Best Mini Split Units 2025 in the United States

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Our Top Picks

#1

Winner

Senville LETO Series Mini Split Air Conditioner Heat Pump, 24000 BTU 208/230V, Inverter, Works with Alexa, SEER2 18, 2 Ton, White

Rating
9.8
Chosen by1,154
BTU Capacity
SEER Rating
Number of Zones

Most important from
7246 reviews

BTU Capacity
The unit cools and heats very effectively, maintaining comfortable temperatures year-round even in extreme weather conditions.
SEER Rating
Energy efficiency is solid, with a high SEER rating that helps keep power bills low despite frequent use.
Number of Zones
The unit is best suited for single-zone applications, ideal for individual rooms or open-plan spaces rather than multi-zone setups.
Noise Level
The quiet operation at around 34 dB keeps the environment peaceful without disruptive noise.
Installation and Maintenance
Installation is challenging for DIYers and requires specialized tools and careful pressure and vacuum testing to avoid leaks.

The Senville LETO Series Mini Split is a solid choice if you need a 2-ton (24,500 BTU) unit capable of cooling or heating spaces up to around 1,250 square feet. Its SEER rating of 17 is respectable, meaning it’s fairly energy-efficient for year-round use, complemented by an inverter compressor that adjusts power use to save energy. The heat pump function works efficiently down to about 5°F, so it can provide heat in moderately cold climates. Noise level is quite low at 34 dB, which should keep your environment quiet and comfortable. This model supports one zone, so it’s best suited for single-room or open-plan areas rather than multiple zones.

Installation includes all necessary components and refrigerant for up to 25 feet of piping, but professional installation is required and labor costs are extra. The unit integrates with Alexa for convenient voice control and remote app access, a nice modern feature that can enhance ease of use. One downside is that the product is rated below some energy star standards and is imported from China, which may concern buyers focused on certification or support. The 5-year warranty on the compressor and parts offers good peace of mind, though labor isn't covered.

This mini-split fits well for homeowners or small businesses looking for a powerful, quiet, and smart-controlled system primarily for a single zone.

Rating
9.8
Chosen by1,154
BTU Capacity
SEER Rating
Number of Zones

Most important from
7246 reviews

BTU Capacity
The unit cools and heats very effectively, maintaining comfortable temperatures year-round even in extreme weather conditions.
SEER Rating
Energy efficiency is solid, with a high SEER rating that helps keep power bills low despite frequent use.
Number of Zones
The unit is best suited for single-zone applications, ideal for individual rooms or open-plan spaces rather than multi-zone setups.
Noise Level
The quiet operation at around 34 dB keeps the environment peaceful without disruptive noise.
Installation and Maintenance
Installation is challenging for DIYers and requires specialized tools and careful pressure and vacuum testing to avoid leaks.
#2

DELLA Vario Series 18000 BTU Wifi Mini Split AC Work with Alexa 19 SEER2 Cools Up to 1000 Sq.Ft Energy Efficient Ductless Inverter System with 1.5 Ton Heat Pump Pre-Charged & 16.4ft Installation Kit

Rating
9.6
BTU Capacity
Noise Level
Installation and Maintenance

Most important from
1299 reviews

BTU Capacity
It cools and heats efficiently, managing medium-sized spaces with ease and maintaining comfortable temperatures rapidly.
Noise Level
The unit operates quietly, producing a soft whisper-like sound that doubles as a white noise generator, making it ideal for bedrooms.
Installation and Maintenance
Professional installation is strongly recommended due to the need for vacuum pumps, refrigerant handling, and electrical work, which can be complex and time-consuming.

The Della Vario 18000 BTU Mini Split AC is a solid choice if you need to cool or heat a medium-sized space up to about 1000 square feet. Its 1.5-ton capacity and 19 SEER2 rating mean it’s energy efficient and can save on power bills compared to older or less efficient units. It also operates quietly at 50 dB, so it won’t be disruptive in your home. The unit features modern conveniences like WiFi and Alexa compatibility, allowing easy control from your smartphone or voice commands. It’s equipped with a heat pump that works even in temperatures as low as -4°F, making it useful for mild heating in colder months.

The system includes smart airflow controls and multiple modes like sleep and energy-saving eco mode for comfort and efficiency. However, it supports only a single zone, so it’s limited to one room or open area rather than cooling multiple separate rooms. Installation is more involved than window units; it requires professional help because of line-set vacuuming and refrigerant adjustment, so DIY installation isn’t recommended. While the included installation kit is convenient, this adds to the overall cost.

If you want a reliable, energy-saving mini-split for a single room or space with quiet operation and smart features, the Della Vario is a good pick, but factor in professional installation and single-zone use before deciding.

Rating
9.6
BTU Capacity
Noise Level
Installation and Maintenance

Most important from
1299 reviews

BTU Capacity
It cools and heats efficiently, managing medium-sized spaces with ease and maintaining comfortable temperatures rapidly.
Noise Level
The unit operates quietly, producing a soft whisper-like sound that doubles as a white noise generator, making it ideal for bedrooms.
Installation and Maintenance
Professional installation is strongly recommended due to the need for vacuum pumps, refrigerant handling, and electrical work, which can be complex and time-consuming.
#3

ROVSUN 18000 BTU Wifi Enabled Mini Split Air Conditioner & Heater with Inverter, 21 SEER2 Energy Saving 230V Ductless Split AC Unit with Pre-Charged Condenser, Heat Pump & Installation Kit

Rating
9.4
BTU Capacity
Noise Level
Installation and Maintenance

Most important from
511 reviews

BTU Capacity
Delivers excellent cooling and heating performance, maintaining perfect temperature balance year-round even in extreme weather conditions.
Noise Level
Operates virtually silently, making it barely noticeable when running and ideal for quiet environments.
Installation and Maintenance
Installation is straightforward but requires professional tools and expertise, reinforcing the value of hiring a specialist despite its user-friendly design.

The ROVSUN 18000 BTU Mini Split Air Conditioner and Heater is a solid choice for cooling and heating spaces up to about 1000 square feet, thanks to its 1.5-ton capacity. It offers effective year-round comfort with a temperature range from 61°F to 88°F. This unit stands out with its energy efficiency—boasting a SEER rating of 19, it uses inverter technology to automatically adjust compressor speed, potentially saving up to 35% on energy costs compared to less advanced models.

Noise-wise, it operates at around 50 dB, which is fairly quiet but not the absolute quietest on the market; the claimed 32 dB in mute mode is notably quieter for nighttime or low-noise environments. Connectivity features are user-friendly, allowing control via a phone app or voice assistants like Alexa and Google Assistant, which adds convenience for modern smart homes. The package includes a pre-charged condenser and installation kit, although it requires professional installation and an additional power cord, which might add to upfront costs and effort.

This model is well suited for single-zone applications in residential or small commercial settings. For those seeking an energy-efficient, moderately quiet, and smart-controlled mini-split system without complex multi-zone needs, this unit fits well. However, if very low noise levels or multi-zone control are priorities, other options may be more appropriate.

Rating
9.4
BTU Capacity
Noise Level
Installation and Maintenance

Most important from
511 reviews

BTU Capacity
Delivers excellent cooling and heating performance, maintaining perfect temperature balance year-round even in extreme weather conditions.
Noise Level
Operates virtually silently, making it barely noticeable when running and ideal for quiet environments.
Installation and Maintenance
Installation is straightforward but requires professional tools and expertise, reinforcing the value of hiring a specialist despite its user-friendly design.

Buying Guide for the Best Mini Split Units

Choosing the right mini-split unit for your home or office can significantly impact your comfort and energy efficiency. Mini-split units are a great option for heating and cooling individual rooms or zones without the need for extensive ductwork. To make an informed decision, it's important to understand the key specifications and how they relate to your specific needs. Here are the main factors to consider when selecting a mini-split unit.
BTU CapacityBTU (British Thermal Unit) capacity measures the amount of heat a unit can remove from a room per hour. This spec is crucial because it determines the unit's ability to effectively heat or cool a space. Units with too low BTU capacity will struggle to maintain the desired temperature, while units with too high BTU capacity will cycle on and off too frequently, leading to inefficiency and wear. To choose the right BTU capacity, consider the size of the room or area you want to condition. For small rooms (up to 300 sq. ft.), a unit with 9,000 BTUs may suffice. Medium rooms (300-500 sq. ft.) typically require 12,000 BTUs, while larger rooms (500-800 sq. ft.) may need 18,000 BTUs or more.
SEER RatingThe SEER (Seasonal Energy Efficiency Ratio) rating measures the efficiency of the mini-split unit over a typical cooling season. A higher SEER rating indicates better energy efficiency, which can lead to lower electricity bills. SEER ratings typically range from 13 to 25 or higher. For moderate climates, a SEER rating of 16-18 is usually sufficient. In hotter climates, a higher SEER rating (20+) can provide better energy savings. Consider your local climate and how often you'll be using the unit to determine the appropriate SEER rating for your needs.
HSPF RatingHSPF (Heating Seasonal Performance Factor) rating measures the efficiency of the mini-split unit during the heating season. Similar to SEER, a higher HSPF rating indicates better efficiency. HSPF ratings typically range from 8 to 13. If you live in a colder climate and plan to use the unit for heating, look for a higher HSPF rating (10+). For milder climates, an HSPF rating of 8-9 may be adequate. Your heating needs and local climate will guide you in selecting the right HSPF rating.
Number of ZonesMini-split units can be designed to serve multiple zones or rooms. This spec is important if you want to control the temperature in different areas independently. Single-zone units are ideal for conditioning one room, while multi-zone units can handle two or more rooms. Consider the layout of your space and how many areas you need to heat or cool. If you have an open floor plan or only need to condition one room, a single-zone unit may be sufficient. For homes with multiple rooms or floors, a multi-zone unit can provide more flexibility and comfort.
Noise LevelThe noise level of a mini-split unit is measured in decibels (dB) and indicates how loud the unit will be during operation. This spec is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels typically range from 19 dB (very quiet) to 60 dB (comparable to normal conversation). If noise is a concern, look for units with lower dB ratings. For bedrooms and quiet spaces, aim for a unit with a noise level below 30 dB. For living areas, a noise level below 40 dB is generally acceptable.
Installation and MaintenanceProper installation and regular maintenance are crucial for the efficient operation and longevity of your mini-split unit. This spec includes the ease of installation, the availability of professional installation services, and the maintenance requirements. Some units come with DIY installation kits, while others may require professional installation. Consider your comfort level with installation and whether you prefer to hire a professional. Additionally, check the maintenance requirements, such as filter cleaning and refrigerant checks, to ensure you can keep the unit running smoothly.

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