MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V | System Set
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Visit CalculatorThe MRCOOL DIY 5th Gen E Star 18K BTU Mini Split is designed for efficient, reliable heating and cooling in medium-sized spaces. With inverter technology, Energy Star certification, and advanced smart controls, this system ensures year-round comfort with low energy consumption. Its Quick Connect pre-charged line set allows for simplified DIY installation without special HVAC tools or certification, making it ideal for homeowners who want professional-grade performance with a hassle-free setup.
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.
High-Efficiency Performance
Achieve up to 22.5 SEER2 and 13.7 EER2, delivering reliable cooling and heating while keeping energy bills low.
Powerful Heating & Cooling
With 18,000 BTU cooling and 18,000 BTU heating capacity, this system is built to keep your home comfortable in all seasons.
Smart Control Compatibility
Easily control your system from anywhere with built-in WiFi, iOS, and Android app compatibility. Voice control works with Alexa and Google Assistant.
Quiet Operation
Indoor noise levels as low as 19 dB(A) ensure whisper-quiet comfort, perfect for bedrooms, living rooms, or offices.
DIY Installation Made Simple
Includes a 25 ft. pre-charged R-454B line set, allowing homeowners to complete installation without needing HVAC tools or certification.

Everything you need is included with your product.
| Specifications | Details |
| Condenser Dimensions | 35.04 W" x 13.46 D" x 26.50 H" |
| Air Handler Dimensions | 42.52 W" x 8.90 D" x 13.19 H" |
| Condenser Weight | 93.48 lbs / 42.4 kg |
| Air Handler Weight | 35.49 lbs / 16.1 kg |
| Specifications | Details |
| Zone Capacity | 1 |
| Cooling Capacity | 18,000 BTU |
| EER2 | 13.7 |
| SEER2 | 22.5 |
| Heating Capacity | 18,000 BTU |
| HSPF2-4 | 11.5 |
| HSPF2-5 | 8.5 |
| Coverage Area | 500 to 750 sq ft. |
| Outdoor Noise Level | 58.5 dB(A) |
| Indoor Noise Level (Hi/Mi/Lo) | 54.5/44.5/40.5/30.5/19.0 dB(A) |
| Specifications | Details |
| Voltage | 208-230V |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker | 20A |
| Min Circuit Ampacity | 18A |
| Specifications | Details |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 44.80 oz |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Max Line Set Length | 98.4 ft. |
| 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 |
| 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. |
Can I install this system myself?
Yes! This unit is specifically designed for DIY installation with its pre-charged Quick Connect line set. No HVAC tools or certification are needed.
Does this unit work in cold climates?
Yes. The MRCOOL DIY 5th Gen system uses advanced inverter technology and R-454B refrigerant, providing reliable performance even in colder conditions.
Is WiFi control included?
Yes. The system works with the MRCOOL app, as well as Alexa and Google Assistant, giving you full smart home compatibility.
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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!
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I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
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I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.
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