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  • An air conditioning system, specifically a 4th Gen DIY 12K BTU ductless mini-split heat pump, with indoor and outdoor units, a remote control, connecting pipes, and a smartphone demonstrating smart control.
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  • A 4th Gen DIY 12k ductless mini-split heat pump outdoor unit with a white casing and a large circular fan visible through blue horizontal slats, flanked by tan protective grids on the sides.
  • White wall-mounted 4th Gen DIY 12k ductless mini-split heat pump above a black braided cable with looped ends and metallic connectors.
  • A white 4th Gen DIY 12K remote control featuring an LCD display at the top, an orange mode button, and various other function buttons including set, ok, and directional keys.
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4th Gen DIY

MRCOOL DIY 4th Gen 12K BTU, 1 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-12-HP-WM-115C25)

MRCOOL DIY 4th Gen 12K BTU, 1 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-12-HP-WM-115C25)

$1,749.00
$2,676.91 $1,749.00
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Shipping calculated at checkout.
  • Energy Star certified 22 SEER, 11.5 HSPF
  • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
  • Designed to efficiently heat and cool a single 500 Sq Ft room

SKUDIY-12-HP-WM-115C25

Type12k

Line Set Length

This item is in stock! Estimated Arrival: 4-6 Days After Order is Received.

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System Overview:

  • Number of Zones: 1

  • Wall Mounted

  • DIY Installation

  • Operating Voltage: 110 to 120

  • Outdoor Operating Temp (Cool): -13°F to 122°F

  • Outdoor Operating Temp (Heat): -13°F to 75.2°F

WHAT'S INCLUDED

  • Remote Control

  • Communication Wire

  • Line Set

  • Condenser

  • Air Handler

  • Wall Sleeve

PRODUCT DESCRIPTION

Introducing the cutting-edge MrCool E Star DIY 4th Gen 12k BTU Ductless Mini-Split Heat Pump, the pinnacle of home comfort technology. This 115V/60Hz complete system is designed to efficiently heat and cool areas up to 500 sq. ft., making it perfect for smaller spaces in need of reliable temperature control.

At the heart of this system lies the 12K condenser and 12K air handler, accompanied by a 25 ft. line set pre-charged with R-410A refrigerant. This setup not only ensures an impressive 22 SEER efficiency rating but also simplifies the installation process dramatically. Homeowners can install the entire system with just a few hand tools and several hours of effort, thanks to its user-friendly design.

The MrCool DIY 12K Heat Pump distinguishes itself with a variety of operating modes tailored to every need—AUTO for automatic adjustment, HEAT for cold days, COOL for hot weather, FAN-ONLY for gentle air circulation, DRY for effective dehumidification, and SLEEP for overnight comfort adjustments. The innovative Follow Me function enhances this versatility by adjusting the room temperature based on the location of the handheld remote controller, ensuring personalized comfort.

For added convenience, the MrCool system can be controlled remotely via the Smart HVAC app, allowing you to manage your home’s climate from anywhere. Standing firmly behind the quality of their product, 

This system includes a standard 25-foot line set and control cable, with options available for extending the line set length to accommodate various installation needs. These extensions come fully equipped with all necessary cables, unions, and pre-charged line sets, ensuring a seamless setup process.

Choose the MrCool E Star DIY 4th Gen 12k BTU Ductless Mini-Split Heat Pump for an efficient, easy-to-install solution that brings advanced technology and outstanding performance to your home heating and cooling needs.

SPECIFICATION & DIMENSIONS

General

System Type

DIY System

Series Name

DIY 4th gen Energy Star

 Dimensions

Air Handler Depth (Inches)

7.44

Height (Inches)
21.85

Air Handler Height (Inches)

11.69

Line-set Connection Size

1/4-in x 1/2-in

Air Handler Width (Inches)

31.57

Line-set Length

25-ft

Compressor Depth (Inches)

11.93

Maximum Coverage Area (Sq. Feet)

550

Compressor Height (Inches)

21.85

Weight (lbs.)

65.7

Compressor Width (Inches)

30.12

Width (Inches)

30.12

Cord Length (Feet)

25.0

Zone Capacity

Single

Depth (Inches)

11.93

 

Features

AHRI Certification Number

208552787

Minimum Outdoor Temperature (Fahrenheit)

-13.0

Amperage

25.0

Mounting Location

Wall

Annual Fuel Utilization Efficiency % (Percentage)

0.0

Multi-Directional Air Control

Yes

Auto Cool

Yes

Noise Rating

Quiet (45 decibels or below)

Automatic Shut-Off

No

Number of Speeds

4.0

Control Type

Dimmable LED

Number of Tons

1.0

Cooling BTU Rating (BTU)

12000

Oscillation

Yes

Decibel Rating (Highest Setting)

37.0

Overload Protection

Yes

Decibel Rating (Lowest Setting)

23.5

Plug Type

N/A

Fan Only Option

Yes

Quiet Mode

Yes

Filter Type

Nylon

Refrigerant Type

R-410A

Full Load Amperage Requirement (Amps)

25.0

Remote Control Included

Yes

Heat Pump Included

Yes

Sleep Mode

Yes

Heating BTU Rating (BTU)

12000

Thermostat

No

Hub Required

No

Timer

Yes

Kit

Yes

Voice Controlled

Yes

Low Voltage Compensation

No

Voltage (Volts)

115.0

COVERAGE AREA

Please refer to this coverage chart to determine how many BTUs are required for the area you would like to cool or heat.

Square Feet: 180-375 | BTU = 9K
Square Feet: 376-500 | BTU = 12K
Square Feet: 501-750 | BTU = 18K
Square Feet: 751-1,000 | BTU = 24K
Square Feet: 1,001-1,500 | BTU = 36K

Some additional factors may impact performance such as insulation, ceiling height and the number of appliances in the room. For assistance, contact our Sales Team.

OPTIONS & ACCESSORIES
MRCOOL LineGuard 4.5-Inch 16-Piece Complete Line Set Cover Kit for Ductless Mini-Split or Central System (MLG450)
MRCOOL LineGuard 4.5-Inch 16-Piece Complete Line Set Cover Kit for Ductless Mini-Split or Central System (MLG450)
$133.43
Elite Condenser Pad - 18 In. x 38 In. x 3 In. For Outside Ground Placement of the MRCOOL DIY Condenser
Elite Condenser Pad - 18 In. x 38 In. x 3 In. For Outside Ground Placement of the MRCOOL DIY Condenser
$79.67
MRCOOL Condenser Wall Mounting Bracket for 9K to 18K BTU MrCool Ductless Mini Split System (MB176)
MRCOOL Condenser Wall Mounting Bracket for 9K to 18K BTU MrCool Ductless Mini Split System (MB176)
$89.27
Disconnect Switch and Electrical Whip with #8 AWG for ALL MRCOOL Condenser
Disconnect Switch and Electrical Whip with #8 AWG for ALL MRCOOL Condenser
$98.87

Customer Reviews

Based on 5 reviews
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Ava Richardson
Absolutely Thrilled with MRCOOL DIY Mini Split!

I installed the MRCOOL DIY Mini Split in my home, and I couldn't be happier. The installation was straightforward, thanks to the instructions and helpful videos provided. Not only is the unit performing beyond my expectations, but I also saved a fortune by not hiring a professional HVAC service. The customer service from MRCOOL DIY Direct was top-notch—prompt, courteous, and incredibly helpful. I'm definitely a customer for life and have already recommended it to several friends and family members!

E
Elizabeth Johnson
I actually did it, It was easier than I thought!

I recently installed a MRCOOL DIY Mini Split in my tiny home, and it was a game-changer. As a woman taking on this project alone, I was a bit nervous, but the MRCOOL DIY Direct staff were angels. They patiently talked me through a couple of issues I encountered, making me feel supported every step of the way. This DIY project not only saved me a ton of money but also came at a time in my life when I needed a win. Completing it gave me a huge sense of accomplishment and relief during a rough patch. It's more than just a cooling system; it's a reminder of what I'm capable of achieving on my own.

E
Ethan O'Connor
Best DIY Project Ever - Thanks to MRCOOL!

The MRCOOL DIY Mini Split is hands down the best DIY project I've undertaken. The installation process was foolproof, and the unit's performance is awesome. What's more, the customer service was friendly and incredibly helpful. I'm so proud to have done this myself and saved money in the process. I'm definitely spreading the word!

C
Caleb Schwartz
Incredible Value and Unmatched Support!

Choosing the MRCOOL DIY Mini Split was one of the best decisions I've made. The installation process was a breeze, thanks to the detailed guide and the supportive customer service team. The unit works flawlessly, and I've saved a significant amount by installing it myself. MRCOOL DIY Direct has earned a customer for life!

K
Kai Takahashi
Unparalleled Performance and Support!

I installed a MRCOOL DIY Mini Split, and the process was seamless. The performance of the unit was better than expected, and the customer service from MRCOOL DIY Direct was stellar. They walked me through a minor installation issue with such patience. I've saved a significant amount by doing it myself and have become an advocate, telling everyone about my fantastic experience!