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MRCOOL DIY® 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V, DIY-18-HP-WM-230D25-O

by MRCOOL
SKU DIY-18-HP-WM-230D25-O
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Original price $2,679.00
Original price $2,679.00 - Original price $2,679.00
Original price $2,679.00
Current price $2,616.90
$2,616.90 - $2,616.90
Current price $2,616.90
Availability:
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This product is estimated to arrive in May 2025. Pre-Order Now!

$2,616.90
Description

Upgrade your living or work space with the MRCOOL DIY® 5th Gen E Star 18,000 BTU Mini Split Complete System, perfect for heating and cooling rooms between 500 to 750 sq. ft. Equipped with advanced technology and designed for easy DIY installation, this mini split is Energy Star® certified and comes with a 25 ft. QuickConnect® line set, DIYPRO® cable, and various wireless control options. With the SmartHVAC app, remote, or voice commands, achieving the ideal temperature has never been simpler. Plus, with top-notch energy efficiency, durability, and an unparalleled warranty, MRCOOL® is the leading choice for DIY climate control - providing professional-grade performance without the cost or hassle 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 Dimensions35.04 W" x 13.46 D" x 26.50 H"
Air Handler Dimensions42.52 W" x 8.90 D" x 13.19 H"
Condenser Weight93.48 lbs / 42.4 kg
Air Handler Weight35.49 lbs / 16.1 kg
Capacity & Performance
Zone Capacity1
Cooling Capacity18,000 BTU
EER213.7
SEER222.5
Heating Capacity18,000 BTU
HSPF2-411.5
HSPF2-58.5
Coverage Area500 to 750 sq ft.
Outdoor Noise Level58.5 dB(A)
Indoor Noise Level (Hi/Mi/Lo)54.5/44.5/40.5/30.5/19.0 dB(A)
Electrical Requirements
Voltage208-230V
Phase1
Cycle60 Hz
Max Fuse Breaker20A
Min Circuit Ampacity18A
Refrigerant & Piping
Refrigerant TypeR-454B
Refrigerant Volume44.80 oz
Liquid Line Size1/4"
Suction Line Size1/2"
Max Line Set Length98.4 ft.
Features
InverterDC
Compressor TypeRotary
Fan Only OptionYes
Quiet ModeYes
Auto CoolYes
Wifi CompatibilityYes
App CompatibilityYes
Works with IOSYes
Works with AndroidYes
Remote Control IncludedYes
Certifications & Warranty
CertificationsUL 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
FAQs

What size DIY Mini Split do I need?

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

  1. The Size of the Area to Heat / Cool (Square Feet)
  2. Your Local Climate (Is it sizzling hot or icy cold for prolonged periods?)
  3. Insulation (From drafty spaces to snug havens, insulation plays a crucial role)
  4. 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.

Customer Reviews

Based on 36 reviews
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J
Jonathan Woods
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!

A
Andrew Frieden
Great product

Everything was delivered on time!

S
Shannon
48K BTU multizone

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

C
Curtis
Perfect purchase

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

B
Bill Cochran
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

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