πŸ’Έ 3% Cash Back | Cash, Check, Wire or Zelle πŸ’Έ

SAVE 3%

  • (877) 770-3548

MRCOOL DIY 18K-BTU 208v Mini Split Heat Pump (-13Β°F) E-Star: 22.5 SEER2/13.7 EER/11.5 HSPF (R454B)

Free Shipping
In Stock DIY-18-HP-WM-230D25-O

Upgrade your comfort with the MR COOL 18000 Btu DIY Split AC and Heat Pump! This 5th Generation Ductless System is perfect for anyone looking for an efficient heating and cooling system without the hassle of professional installation. Designed for easy, tool-free setup, this DIY Air Conditioning Kit includes everything you need: a single zone outdoor unit with R454B Freon, an indoor unit with a remote and WiFi kit, and a 25' install kit featuring DIY Pro Armored Cable. With a remarkable 22.5 SEER2 rating, this ductless heat pump efficiently heats and cools spaces up to 800 sq. ft., even in temperatures as low as -13 F. Enjoy the convenience of smart technology and the peace of mind that comes with a 7-year compressor and 5-year parts warranty.

Your price

Buy more, pay less

from each
1 × =
Description

*This MR COOL 5th Gen DIY Mini Split Includes:

(1) DIY Single Zone Outdoor Unit with R454B Freon

(1) DIY Indoor Unit (w/Remote and Wifi Kit) 

(1) 25' Install Kit with DIY Pro® Armored Cable (Copper & Wires)

∼Heats & Cools∼ 

(-13F/-13F)

AHRI Certificate Performance Data
∼7yr Compressor∼ 5yr Parts Warranty∼
Online Registration REQUIRED: CLICK HERE
MR COOL TECH SUPPORT: 270-366-0457

Upgrade your space with the 5th Generation MRCOOL® DIY® 18K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler. This system is designed for straightforward, tool-free installation, with no special skills required, and provides efficient heating and cooling for areas up to 800 sq. ft. The pre-charged 25-foot DIY® QuickConnect® line set, filled with R-454B refrigerant, eliminates the need for vacuuming, saving you time, effort, and installation costs.

Plus, the included DIYPRO® cable enhances durability by removing the need for electrical conduit, protecting against outdoor elements and wildlife. Take control your way—whether with the wireless remote, the SmartHVAC app for Apple and Android, or hands-free voice commands via Amazon Alexa and Google Assistant. The Gold Fin® Condenser also provides enhanced corrosion resistance, making it an excellent choice for coastal environments.

Designed with your comfort in mind, the system’s wireless remote features Follow Me technology, allowing the air handler to adjust based on the remote’s location for personalized comfort. Dry Mode adds another layer of convenience by reducing humidity and preventing excess condensation. With industry-leading warranties, including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty, you can trust in long-lasting performance. Experience an easier installation, smart technology, and year-round comfort with the 5th Generation MRCOOL® DIY®.

Special Features Include:

 

QUICK CONNECT                                               With our patented, simple quick connect lines you'll be able to install your MRCOOL® DIY® without needing specialized training or expensive tools

DIYPRO® ARMORED CABLE                                     Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.

CORROSION RESISTANT
Live on the coast? Don't worry, our condenser features Gold 
Fin®
condensers built to resist long term corrosion.

FOLLOW ME® FUNCTION
Keep the included remote close by, and MRCOOL DIY® will track the air temperature around you to ensure maximum comfort.

SMARTPHONE APP
Control your MRCOOL® DIY® anywhere with your Apple or Android smart device and an internet connection.

 LOUVER POSITION MEMORY
The air handler's horizontal louver will 
automatically reset to the same position that was set the last time the unit was 
powered on.

DIGITAL ASSISTANT READY                                          The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

AUTO RESTART
Power outage? No worries…the MRCOOL® DIY® auto restart will 
have the unit running again in no time

LOW AMBIENT COOLING & HEATING (-13F/-13F)    Cool and Heat all the way down to -13°F This feature makes the MRCOOL DIY the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.

Take full control of your home comfort with the 5th Generation MrCool DIY Mini Split System. Homeowners can easily install this outdoor heat pump condenser and indoor air handler since installation requires no special tools, equipment, or training. This full heating and cooling system can be installed in just a few hours. 

The key to the 5th Generation MrCool DIY  Ductless Heat Pump Mini Split System's easy installation capability is the pre-charged Quick Connect line set — MrCool's cutting-edge technology that makes setup safe, simple, and cost effective. The line set uses the environmentally friendly, and chlorine-free refrigerant R-454B, which is an alternative to old refrigerant that won't damage the ozone layer.

    Specification
    Title MRCOOL DIY 18K-BTU 208v Mini Split Heat Pump (-13Β°F) E-Star: 22.5 SEER2/13.7 EER/11.5 HSPF (R454B)
    Brand Mr Cool
    Category 18000 Btu | 1.5 Ton | 600-800 Sq Ft
    SKU DIY-18-HP-WM-230D25-O
    Condition new
    UPC 840255588553
    MPN DIY-18-HP-WM-230D25-O
    Reviews 1
    5.0 1 review

    It truly lives up to its promise.

    Stuart Sparks · June 2025

    Let me tell you, when I first started looking into heating and cooling solutions for that one challenging area of my house. And then, the "DIY" part of MrCool caught my eye. Honestly, I was skeptical. HVAC work always seemed like something only a seasoned pro with a truck full of specialized tools could tackle. But the promise of a pre-charged line set and no need for vacuuming? That was enough to pique my interest. It’s a robust, efficient, and surprisingly user-friendly system that has transformed a problem area of my home into one of the most comfortable. The satisfaction of having installed it myself adds another layer of appreciation.

    Customer Reviews

    5.0 / 5 · 1 reviews
    It truly lives up to its promise.

    Let me tell you, when I first started looking into heating and cooling solutions for that one challenging area of my house. And then, the "DIY" part of MrCool caught my eye. Honestly, I was skeptical. HVAC work always seemed like something only a seasoned pro with a truck full of specialized tools could tackle. But the promise of a pre-charged line set and no need for vacuuming? That was enough to pique my interest. It’s a robust, efficient, and surprisingly user-friendly system that has transformed a problem area of my home into one of the most comfortable. The satisfaction of having installed it myself adds another layer of appreciation.

    Stuart Sparks · 2025-06-10

    Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.

    (877) 770-3548

    Raffle Sign-Up

    Sign up today for special offers, coupon codes and our free raffle.Β