Upgrade your home comfort with the MRCOOL E Star DIY 4th Gen 12K BTU Mini-Split Heat Pump, designed for energy-efficient heating and cooling in spaces up to 500 sq. ft.. This 115V/60Hz system is DIY-friendly, making installation easy with its pre-charged 25' line set, eliminating the need for professional HVAC assistance.

With an impressive 22 SEER efficiency rating, this mini-split provides exceptional performance while reducing energy costs. Smart technology, flexible line set options, and multiple comfort modes make it the ultimate solution for small spaces needing reliable, year-round temperature control.

✔ Effortless DIY Installation

Pre-Charged 25 Ft. Line Set – No special tools, vacuuming, or refrigerant handling required.
Simple Setup – Install with basic hand tools in just a few hours.
Extended Line Set Options – Custom lengths available in 16', 35', 41', 50', and 75', complete with additional pre-charged line sets and control cables.

💡 Exclusive extended line set options are only available at MRCOOL DIY Direct – the USA’s most trusted independent MRCOOL dealer!

✔ Versatile Operating Modes for Maximum Comfort

AUTO – Automatically selects heating or cooling as needed.
HEAT – Provides efficient warmth in colder months.
COOL – Delivers powerful air conditioning during hot weather.
FAN-ONLY – Circulates air without adjusting temperature.
DRY – Reduces excess humidity to improve indoor air quality.
SLEEP – Optimizes temperature settings for overnight comfort and energy savings.

✔ Smart Climate Control Features

✔ Follow Me Function – The remote control monitors the temperature and signals the unit to adjust settings based on your exact location in the room.
✔ Wi-Fi Smart Control – Manage your system remotely via the Smart HVAC app, allowing full temperature and mode adjustments from your smartphone.

✔ What’s Included in the MRCOOL DIY 4th Gen 12K BTU Mini-Split System?

✔ 12K BTU MRCOOL Heat Pump Condenser (115V, Energy Star Certified)
✔ 12K BTU MRCOOL Wall Mount Air Handler
✔ Pre-Charged 25 Ft. Line Set & Control Cable
✔ Optional Extended Line Set Kits with additional control cables and couplers for custom installations.

✔ Energy Efficiency & Reliability

22 SEER Rating – Reduces energy consumption while delivering powerful heating & cooling.
Eco-Friendly R-410A Refrigerant – Safe for the environment and your home.
Industry-Leading Warranty – Includes 7-year compressor / 5-year parts warranty, with a limited lifetime compressor warranty upon registration.

Why Choose MRCOOL DIY?

✔ Truly DIY-Friendly – Save thousands on installation costs.
✔ Pre-Charged Line Set – No HVAC technician required.
✔ Smartphone & Remote Control – Effortless temperature management from anywhere.
✔ MRCOOL DIY Direct – The USA’s Most Trusted Independent Dealer – Expert support and fast nationwide shipping.

Order Your MRCOOL DIY 4th Gen 12K BTU Mini-Split Today!

Upgrade your home with a high-performance, DIY-friendly heating & cooling system. The MRCOOL DIY 4th Gen 12K BTU Mini-Split is the ideal solution for small spaces, garages, offices, and bedrooms that need efficient, cost-saving climate control.

💡 Shop now at MRCOOL DIY Direct and experience the next generation of DIY HVAC solutions!

Specifications & 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