This highly-rated AC unit from Senville comes in a number of sizes, ranging from 9,000 BTUs all the way up to 30,000 BTUs, and it comes in 120- and 230-volt models. It has 4-in-1 functionality, working as an air conditioner, heater, dehumidifier, and fan, and it operates at just 34 decibels, making it a tranquil option for a bedroom or nursery.

You can control all of its settings via the included remote. The air conditioner comes with an installation kit, including a communication cable and copper lines, but it’s important to note the brand requires professional installation for the unit’s five-year warranty to be valid.

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This ductless air conditioner is perfect for small rooms and spaces, with a coverage that can handle areas between 200 and 500 square feet. Great for climate control storage and small bedrooms, the WYS009A-20 is an Energy Star-certified machine that’ll help you save money year-round. It cools as low as -13 degrees F and heats up to 122 F.

It has a permanent washable air filter and a remote control for easy operation—though you have to buy an additional remote to use Wi-Fi capabilities. It also operates at only 25 decibels, making it one of the quietest machines on this list, and it has four modes: cooling, heating, dehumidification, and ventilation. After installation, Pioneer provides free tech support and five-year coverage on replacement parts and the compressor.

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This model from Della is a great value. It delivers 24,000 BTUs/hour, making it suitable for rooms up to 1,500 square feet. It’s also the sleekest model we cover.

In addition to cooling, this unit has settings for heating, dehumidification, and ventilation, and that versatility extends to its selection of impressive features, including a 24-hour timer, sleep mode, energy-saving mode, and multiple fan speeds. And all of these are easily adjusted using the included remote control.

The Della Mini-Split comes with a full installation kit, including a line set, and it operates at 51 decibels.

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Suppose you want the ability to adjust your air conditioning from your smartphone. In that case, this model from Senville includes built-in Wi-Fi connectivity, allowing you to operate it remotely from an Android or iOS device. It’s suitable for large spaces, thanks to its four-zone setup and 36,000-BTU output. Plus, it also has heating, dehumidification, and fan settings.

The unit has a turbo mode for even more versatility, and it automatically switches from cooling to heating based on the ambient temperature. The Senville Mini-Split comes with an installation kit that includes a 16-foot line set, but professional installation is recommended.

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If you plan to install your ductless air conditioner in a large room, this model delivers 36,000 BTUs, making it powerful enough to efficiently cool spaces up to 1,500 square feet. It can be used for heating and cooling, operating in ambient temperatures between 5 and 122 degrees Fahrenheit, and it comes with a comprehensive installation kit.

You’ll get an insulated and pre-flared 25-foot line set, communication wires, a drainage extension, and remote control. The unit can even be equipped with wifi if you purchase the brand’s USB adapter (sold separately).

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The large, rectangular indoor units that come with most ductless air conditioners can be a bit cumbersome on your wall, and if you prefer a more streamlined appearance, this unit uses a ceiling cassette instead.

The 9,000-BTU system can be used for heating and cooling in spaces up to 350 square feet, and it comes with a 16-foot line set and all necessary installation equipment. The system has a 24-hour timer, sleep mode, turbo function, and three indoor fan modes. It operates at 31.5 decibels, making it ideal for bedrooms.

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If energy usage is your top priority, DELLA’s 12,000-BTU mini-split is one of the most efficient systems commonly available online. Its efficiency rating sits around 22–23 SEER2 (which is a newer efficiency standard that prioritizes real-world performance), and that means it uses significantly less electricity than many other entry-level mini-splits.

The inverter compressor automatically adjusts output instead of cycling on and off, which helps the unit maintain steady temperatures and reduces power consumption. (You’ll really notice this feature during periods of extreme weather that tend to spike utility bills.)

The unit is well-sized for bedrooms, offices, or small living areas, and it cools and heats spaces up to about 600 square feet. The built-in Wi-Fi control and quiet operation round out the package.

A few drawbacks: This unit almost certainly requires professional installation, and while DELLA has great reviews, it’s a smaller company and may offer less customer support, based on some user feedback.

Key Specs

There are a lot of great reasons to purchase a ductless mini-split air conditioner, but one big drawback is the large wall unit most mini-splits use. There are some options, though, that are a bit more discreet like this model from Rovsun.

The Rovsun ceiling cassette system is a smart alternative to the typical ductless mini-split system. Instead of mounting on the wall, the indoor unit sits flush in the ceiling, leaving only a slim grille visible and distributing air in multiple directions across the room. The head unit measures 22.4 inches square because it is designed to fit into a standard drop ceiling grid. (You can recess it into any ceiling with proper framing, though.)

This 12,000-BTU system is well-sized for bedrooms, offices, or smaller living spaces and delivers impressive efficiency with a 24 SEER2 rating. Built-in Wi-Fi gives you control of the model through the Rovsun app or remote, and the package includes a pre-charged condenser and installation kit. It’s more involved to install than a standard wall unit, but the clean, low-profile design is worth it.

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