The MRCOOL® 4th Generation DIY 18K BTU, 22 SEER Ductless Heat Pump system offers a complete solution to your home’s heating and cooling needs.

This system can heat & cool an area up to 750 sq. ft and is capable of an Energy Star certified, 22 SEER efficiency rating.

However, the best feature of this system is the ease of installation it provides to the homeowner. With the included pre-charged 25 ft. line set, some hand tools, and a few hours of time this entire system can be completely installed.

This system comes equipped with many functions that separate it from the rest. It has multiple operating modes, which include AUTO, HEAT, COOL, FAN-ONLY, DRY (dehumidification) and SLEEP. It also features the Follow Me function, which allows the system to continually adjust the room temperature based on where the hand-held remote controller is.

Need to operate the system when you’re not at home? No problem. The MrCool system also has the capability of being operated with your smartphone with the use of the Smart HVAC app.

• Gold Fin® condenser: corrosion-resistant coastal living - don't worry, our condenser is built to resist long term corrosion
• Variable-speed DC inverter compressor technology cuts operating costs
• Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty

MrCool stands behind the quality and workmanship of this system by being the only manufacturer to offer a limited lifetime compressor warranty.

The MRCOOL® 4th Generation DIY 24K BTU, 20.5 SEER Ductless Heat Pump is an all in one system that seamlessly combines efficiency, durability, and simplicity. This system can offer a 20.5 SEER efficiency rating that has allowed it to achieve an Energy Star certification and can heat & cool an area up to 1,000 sq. ft. 

It also features durable construction and a corrosion-resistant Gold Fin condenser. All of this is contained within a Do-It-Yourself system that can be installed by a homeowner in a few hours using simple tools.

This simplicity is achieved with the use of the patented MrCool Pre-Charged Quick-Connect Line Set included with the system.

Not only is this system capable of delivering exceptional performance, it is also equipped with up to six operating modes, which include AUTO, HEAT, COOL, FAN-ONLY, DRY (dehumidification), and SLEEP. The system’s Follow Me Feature allows the system to adjust the room temperature based on wherever you’re standing with the hand-held remote control.

This system also has the ability to be controlled with a smartphone by way of the Smart HVAC app.

• Gold Fin® condenser: corrosion-resistant coastal living - don't worry, our condenser is built to resist long term corrosion
• Variable-speed DC inverter compressor technology cuts operating costs
• Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty

Backed by a limited lifetime compressor warranty, this system is sure to meet your comfort needs and peace of mind.

The MRCOOL® 4th Generation DIY 36K BTU, 18 SEER Ductless Heat Pump is one of the most powerful single-zone systems offered in the DIY Series.

This complete system has the heating and cooling performance to cover an area up to 1500 sq. ft while still being able to achieve an 18 SEER efficiency rating.

All of this performance is within a system that can be easily installed by a homeowner with a few hand tools thanks to the patented MrCool Pre-Charged Quick-Connect Line Set that makes connecting refrigerant piping as simple as turning a few wrenches.

The benefits of this system are not limited to the performance and ease of installation. This system also has many operational functions and features that sets it apart. The user can select from up to six operation modes AUTO, HEAT, COOL, FAN-ONLY, DRY (dehumidification), and SLEEP. This system features a Follow Me function which can constantly adjust the temperature of the room by sensing the temperature from the location of the handheld remote controller.

This system can also be operated with an Apple or Android smartphone by downloading the Smart HVAC app.

• Gold Fin® condenser: corrosion-resistant coastal living - don't worry, our condenser is built to resist long term corrosion
• Variable-speed DC inverter compressor technology cuts operating costs
• Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty

MrCool offers a limited lifetime compressor warranty on this system.

The 4th Generation MRCOOL® DIY 18K BTU 2-Zone Ductless Heat Pump Condenser is the latest in heat pump technology.

This 2-zone condenser, when paired with select MrCool air handlers, is capable of producing an impressive 21 SEER efficiency rating. It also has the ability to heat even when temperatures drop to -13°F.

It features robust construction which includes a Gold Fin Condenser coating so it is sure to withstand exposure to the elements. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty.

As a MrCool DIY product, this heat pump is designed specifically to be used with MrCool’s patented Pre-Charged Quick Connect Line Sets. MUST BE PURCHASED SEPERATELY These line sets come pre-charged with the precise amount of R-410A refrigerant. They are also equipped with quick connectors, so the line set can be connected to the condenser by the homeowner using only wrenches. This means the installation process can be performed without retaining the services of a certified technician.

Let the 4th Generation MrCool DIY 18K BTU 2-Zone Ductless Heat Pump Condenser be the solution to your home’s heating and cooling needs.

• Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty
• Line sizes 1/4”, 1/2” & 3/8”, 5/8”
• Multi-Zone Condenser includes adapter for the 24K Air Handler (3/8", 5/8" Line Size) - see liquid line and suction line size columns