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MRCOOL DIY 5th Gen E Star 12K BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V | System Set

The MRCOOL DIY 5th Gen 12K BTU Mini Split is the perfect solution for efficient and reliable heating and cooling in smaller spaces. Designed for single-zone applications, this unit combines advanced inverter technology, Energy Star certification, and convenient smart features for effortless comfort. Its pre-charged Quick Connect line set makes DIY installation simple and tool-free, saving time and money without sacrificing performance.

Please note: This system is designed for DIY installation and includes a pre-charged Quick Connect line set for easy setup without HVAC tools or certification.

MRCOOL DIY 5th Gen E Star 12K BTU Single Zone Mini Split Features

DC Inverter Technology

Efficiently adjusts power output for consistent temperatures while reducing energy consumption.

Rotary Compressor

Durable and reliable design ensures long-lasting operation with minimal noise.

Quiet Mode

Keeps indoor operation whisper-quiet, making it ideal for bedrooms, offices, or living rooms.

Wi-Fi Compatibility

Control your comfort from anywhere using the MRCOOL app, compatible with iOS and Android devices.

Auto Cool Function

Automatically adjusts settings to maintain a comfortable environment without manual input.

Remote Control Included

Easily manage your unit with the included wireless remote for added convenience.

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MRCOOL DIY 5th Gen E Star 12K BTU Single Zone Mini Split Applications

  • Bedroom – quiet operation for restful sleep.
  • Home office – reliable temperature control for focused work.
  • Living room – efficient comfort for family gatherings.
  • Small apartments – perfect fit for compact living spaces.

What's Included

Everything you need is included with your product.

  • Outdoor condenser
  • Indoor air handler
  • 25 ft. line set
  • Remote control
  • User Manual

Warranty

  • 7 Years Compressor
  • 5 Years Parts

MRCOOL DIY 5th Gen E Star 12K BTU Single Zone Mini Split Specifications

Dimensions & Weight

Specifications Details
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

Specifications Details
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

Specifications Details
Voltage 115V
Phase 1
Cycle 60 Hz
Max Fuse Breaker 20A
Min Circuit Ampacity 18A

Refrigerant & Piping

Specifications Details
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

Specifications Details
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

Specifications Details
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.

Frequently-Asked Questions

Does this system come pre-charged?

Yes, the MRCOOL DIY 5th Gen system includes a pre-charged Quick Connect line set, eliminating the need for special HVAC tools or handling refrigerant.

Can I install this system myself?

Yes, this unit is designed for DIY installation. However, it’s important to follow all instructions in the manual carefully to ensure proper setup.

What size room will this cover?

The 12K BTU model is best suited for spaces ranging from 350 to 500 sq. ft., such as bedrooms, offices, or small apartments.

Is it compatible with smart home devices?

Yes, the system includes Wi-Fi compatibility and works with the MRCOOL app for iOS and Android.

Manual

  • MRCOOL DIY 5th Gen E Star 12,000 BTU Complete System Manual

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.


Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.


100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.


Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.


Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.


At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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