Name: MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System 115V with 25 ft. DIY Quick Connect Line Set and DIYPRO Cable, DIY-12-HP-WM-115D25-O
Brand: MRCOOL
SKU: DIY-12-HP-WM-115D25-O
Price: 2359.0 USD
Availability: InStock
Rating: 5.0 (36 reviews)

MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System 115V with 25 ft. DIY Quick Connect Line Set and DIYPRO Cable, DIY-12-HP-WM-115D25-O

by MRCOOL

SKU DIY-12-HP-WM-115D25-O

Save 16%

$2,800.00

$2,800.00 - $2,800.00

$2,800.00

$2,359.00

$2,359.00 - $2,359.00

$2,359.00

Availability:

In stock

Quantity

Free Shipping!

This product is estimated to arrive in June 2025. Pre-Order Now!

$2,359.00

Description

Upgrade your space with the 5th Gen MRCOOL® DIY® 12K BTU Single Zone Mini-Split - the ultimate solution for year-round heating and cooling in rooms 350 to 500 sq. ft. Engineered for effortless DIY installation, this Energy Star® certified mini split lets you take control of your comfort with an included 25 ft. QuickConnect® line set, DIYPRO® cable, and multiple wireless control options. Whether using the SmartHVAC app, remote, or voice commands, achieving perfect temperature control has never been easier.

With industry-leading energy efficiency, durability, and a best-in-class warranty, MRCOOL® is the trusted name in DIY climate control - giving you professional-grade performance without the hassle or expense of professional installation.

Why Choose MRCOOL® DIY® 5th Gen Mini-Split?

America’s #1 DIY Mini Split: The nation’s most trusted DIY mini split, designed for quick, hassle-free installation and exceptional reliability.
DIY® QuickConnect® Line Set: Pre-charged with R-454B refrigerant, this line set ensures a quick, vacuum-free setup, making installation a breeze.
Eco-Friendly Refrigerant: R-454B refrigerant offers a lower Global Warming Potential (GWP) than older refrigerants like R-410A, reducing environmental impact while boosting energy efficiency.
DIYPRO® Cable: Say goodbye to electrical conduit - this cable is built for durability and protection against outdoor elements and wildlife, ensuring long-lasting performance.
Wireless Control Options: Control your comfort with the included remote, the SmartHVAC app (compatible with Apple and Android), or use voice commands with Amazon Alexa or Google Assistant.
Follow Me Function: Enjoy consistent comfort with airflow that adjusts based on the remote’s location, ensuring even temperature distribution.
Dry Mode: Acts as a dehumidifier to reduce excess moisture, improving indoor air quality and creating a more comfortable environment.
Gold Fin® Condenser: Offers superior corrosion resistance, making it perfect for coastal homes and ensuring durability for the long haul.
Industry-Leading Warranty: With a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty, you can count on your MRCOOL® system for years to come.
Certified Excellence: Intertek listed 5031495 for guaranteed reliability and safety.

Specifications

Dimensions & Weight
Condenser Dimensions	30.12 W" x 11.93 D" x 21.85 H"
Air Handler Dimensions	31.57 W" x 7.44 D" x 11.69 H""
Condenser Weight	65.48 lbs / 29.7 kg
Air Handler Weight	24.91 lbs / 11.3 kg
Capacity & Performance
Zone Capacity	1
Cooling Capacity	12,000 BTU
EER2	12.5
SEER2	23.5
Heating Capacity	12,000 BTU
HSPF2-4	10.2
HSPF2-5	7.6
Coverage Area	350 to 500 sq ft.
Outdoor Noise Level	54 dB(A)
Indoor Noise Level (Hi/Mi/Lo)	43.0/39.5/33.5/24.0/18.0 dB(A)
Electrical Requirements
Voltage	115V
Phase	1
Cycle	60 Hz
Max Fuse Breaker	20A
Min Circuit Ampacity	18A
Refrigerant & Piping
Refrigerant Type	R-454B
Refrigerant Volume	30.34 oz
Liquid Line Size	1/4"
Suction Line Size	3/8"
Max Line Set Length	82 ft.
Features
Inverter	DC
Compressor Type	Rotary
Fan Only Option	Yes
Quiet Mode	Yes
Auto Cool	Yes
Wifi Compatibility	Yes
App Compatibility	Yes
Works with IOS	Yes
Works with Android	Yes
Remote Control Included	Yes
Certifications & Warranty
Certifications	UL Listed, ETL Listed, Energy Star Certified, AHRI Certified
Warranty	7 Years Compressor 5 Years Parts Extended Limited Lifetime Replacement If the original owner does not register the unit, the warranty defaults to the standard 5 year parts, 7 year compressor warranty. *The original, registered owner must be enrolled in the MrCool Care Program every year in order to qualify for the 7-year full unit replacement for compressor failure and lifetime compressor replacement.

Manuals & Guides

Product Brochure

Installation Manual

Remote Control Manual

Warranty Document

AHRI Certificate

Energy Guide

FAQs

What size DIY Mini Split do I need?

Get ready to tailor your comfort with precision! Here's what you need to consider:

The Size of the Area to Heat / Cool (Square Feet)
Your Local Climate (Is it sizzling hot or icy cold for prolonged periods?)
Insulation (From drafty spaces to snug havens, insulation plays a crucial role)
Basic Sizing based on Square Footage alone:

9K BTU = 180 to 375 Sq Ft.
12k BTU = 376 to 500 Sq Ft.
18k BTU = 501 to 750 Sq Ft.
24k BTU = 751 to 1,000 Sq Ft.
36k BTU = 1,001 to 1,500 Sq Ft.

Still need help? Get in touch with our HVAC Experts!

Check out our blog 'Sizing Your Mini Split'

Can I mix and match Wall Mount and Ceiling Cassettes Air Handlers?

Yes, of course! Get in touch with one of our HVAC experts and we can put together a custom package for you.

What is the operational temperature range for DIY Mini Splits?

The operational temperature range for DIY air conditioning units varies based on whether it's a Multi-Zone or Single-Zone system:

Multi-Zone:

For the 4th Gen Multi-Zone 18k – 36k condensers:

Heating: -13°F to 75.2°F (outside temperature)
Cooling: 5°F to 122°F (outside temperature)

For the 4th Gen Multi-Zone 48k condensers:

Heating: 5°F to 75.2°F (outside temperature)
Cooling: 5°F to 122°F (outside temperature)

Indoors, at the thermostat:

Cooling: 62°F to 90°F
Heating: 32°F to 86°F

Single-Zone:

For the 4th Gen Single Zone 12K – 24k condensers:

Heating: -13°F to 75°F (outside temperature)
Cooling: -13°F to 122°F (outside temperature)

For the 4th Gen Single Zone 36k condensers:

Heating: 5°F to 75°F (outside temperature)
Cooling: 5°F to 122°F (outside temperature)

Indoors, at the thermostat:

Cooling: 62.2°F to 89.6°F
Heating: 32°F to 86°F

What can I do about the excess coil/line set length?

It is recommended to leave the remaining/excess line set coiled horizontally near the condenser and wrapped with protective tape. This will not impact performance whatsoever.

Easy DIY just as it’s called

We have a home which only has electric baseboard heaters and are super expensive. We’ve been looking at mini splits but didn’t want to pay the outrageous HVAC vendor fees. Studied MrCool DIY systems and finally decided to buy it. Everything shipped and arrived super quick. You do have to have basic maintenance skills to install as stated in the manual. Also be sure to triple check your install locations and measure the length to order the right size lines. The charged copper lines are not super easy to straighten so the 25’ roll doesn’t mean it will actually go 25’ so give yourself some extra room. Installed the four zone system in about 2 days without any issues. It was -10 last night and the system worked without any issues and kept the house at a nice 70. Excited to have the system and hope it works great in the future!

Great product

Everything was delivered on time!

48K BTU multizone

Love this system really quite and does a frat job in my 2800 sq. Ft. shop

Perfect purchase

I was nervous about purchasing from hvac kingdom. Purchase was seemless

Love these units

Have two other Mr cools that I have purchased previously, cannot get over how efficient and well these units run. Love the little updates that I have on my latest 12K that I have bought, better remote in Reading easier access to clean filters, thanks again for the unit, would recommend to anybody and I have

1 2 3

Blog Posts

June 14, 2024 Henry Miller

Senville Aura vs Leto
Senville Mini Splits: Comparing the AURA and LETO Series Senville offers a range of mini-split air conditioners and heat pumps known for their energy efficiency and reliable performance. Among their popular product lines are the AURA and LETO series, each...
Read now
May 3, 2024 Henry Miller

How long will MRCOOL Mini Split last?
Thinking about a MRCOOL DIY mini split system to keep your home comfortable? Longevity is a big question. This post dives into how long these systems typically last, focusing on the MRCOOL DIY 4th Gen Mini Splits and its warranty.MRCOOL...
Read now
April 12, 2024 Henry Miller

Who makes Senville Mini Splits?
Who Makes Senville Mini Splits? Your Ultimate Guide to Who Makes these Efficient Cooling Solutions When it comes to finding a reliable and energy-efficient air conditioning and heating solution, many homeowners and businesses alike turn to Senville mini splits. But...
Read now