Upgrade your off-grid cabin, home, or workspace with the 5th Gen MRCOOL DIY® 12K BTU Ductless Mini Split System. Designed for fast, tool-free DIY installation, this system delivers efficient heating and cooling for spaces up to 550 sq. ft.—without the hassle or cost of hiring a contractor.
With built-in smart controls, a corrosion-resistant condenser, and industry-leading warranty coverage, this is the perfect all-in-one comfort solution for energy-conscious, hands-on homeowners.
Key Features & Benefits:
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Easy DIY Installation – Includes pre-charged 25-ft QuickConnect® line set with R-454B refrigerant—no vacuuming required
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Smart Control Options – Use the wireless remote, SmartHVAC app, or voice commands via Amazon Alexa or Google Assistant
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Precision Comfort – Follow Me® feature adjusts airflow to the remote’s location for consistent room temperature
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Dual Functionality – Heats and cools efficiently year-round with 23.5 SEER2 rating
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Durable & Weather-Ready – Gold Fin® condenser resists corrosion, ideal for coastal or harsh climates
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DIYPro® Cable Included – No need for electrical conduit; built tough for outdoor durability
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Whisper-Quiet Operation – Enjoy maximum comfort with minimal noise
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Energy Efficient & Eco-Friendly – Uses R-454B refrigerant for lower environmental impact
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Industry-Leading Warranty – Limited lifetime, 7-year compressor, and 5-year parts warranty
User Manual / Documents:
Upgrade your off-grid cabin, home, or workspace with the 5th Gen MRCOOL DIY® 12K BTU Ductless Mini Split System. Designed for fast, tool-free DIY installation, this system delivers efficient heating and cooling for spaces up to 550 sq. ft.—without the hassle or cost of hiring a contractor.
With built-in smart controls, a corrosion-resistant condenser, and industry-leading warranty coverage, this is the perfect all-in-one comfort solution for energy-conscious, hands-on homeowners.
Key Features & Benefits:
-
Easy DIY Installation – Includes pre-charged 25-ft QuickConnect® line set with R-454B refrigerant—no vacuuming required
-
Smart Control Options – Use the wireless remote, SmartHVAC app, or voice commands via Amazon Alexa or Google Assistant
-
Precision Comfort – Follow Me® feature adjusts airflow to the remote’s location for consistent room temperature
-
Dual Functionality – Heats and cools efficiently year-round with 23.5 SEER2 rating
-
Durable & Weather-Ready – Gold Fin® condenser resists corrosion, ideal for coastal or harsh climates
-
DIYPro® Cable Included – No need for electrical conduit; built tough for outdoor durability
-
Whisper-Quiet Operation – Enjoy maximum comfort with minimal noise
-
Energy Efficient & Eco-Friendly – Uses R-454B refrigerant for lower environmental impact
-
Industry-Leading Warranty – Limited lifetime, 7-year compressor, and 5-year parts warranty
User Manual / Documents:
MRCOOL DIY 12,000 BTU Mini Split Heat Pump System | 5th Gen | 115V | 23.5 SEER2 | Cools & Heats Up to 550 Sq. Ft. | DIYPro Cable + 25' Line Set
- Regular price
- $2,359.00
- Sale price
- $2,359.00
- Regular price
-
$2,948.75
No obligation — get a custom quote in minutes
Lifetime Support on Every Order, Guaranteed.
MRCOOL DIY 12,000 BTU Mini Split Heat Pump System | 5th Gen | 115V | 23.5 SEER2 | Cools & Heats Up to 550 Sq. Ft. | DIYPro Cable + 25' Line Set
Testimonials
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"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
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Frequently Asked Questions
Find the answers to some of the most common questions customers have before placing their order.
Yes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.
Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.
While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.
Our return policy is normally 30 days. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center linked below.
All products are backed by full manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.
Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. You can apply during checkout and get approved in minutes.
If you're ready to place your order, you can go ahead and checkout online right now. If you have questions, our friendly team of solar experts are happy to assist and can take your order over the phone. If you're interested in financing, you will find the application at checkout online. So whatever is best for you, we are happy to accommodate.
Our team works hard to process all orders within 24-48 hours. Most products ship directly to your door using the quickest, most cost effective ground shipping services depending on size. You’ll receive tracking details and delivery coordination as soon as your order ships. Our average shipping times are anywhere from 3-7 days.
You’ll have free direct access to our support team via phone, email, and chat. Whether it’s setup guidance or troubleshooting years down the road, we’re here to help.
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