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MRCOOL COMFORT MADE SIMPLE

MRCOOL 18000 BTU 115V Ductless Inverter Mini Split Air Conditioner & Heat Pump System, 5th Gen DIY - Wall-Mounted AC Unit w/ Heating and Cooling for Home, Office & Commercial Space

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 24
Order within 6 hours and 13 minutes
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Style: 18K


Features

  • Air Conditioner: 5th Generation DIY mini split air conditioner equipped with both cooling and heating capabilities with 18,000 BTUs and coverage up to 800 square feet; Perfect for home, office, or commercial use
  • Easy DIY Installation: No special tools, equipment, or training are required, thanks to pre-charged 25-foot Quick Connect line sets, making installation a breeze and completing in just a few hours
  • Low Noise, Efficient Performance: Combo unit operates quietly and efficiently to keep you comfortable without high energy costs
  • Cooling & Heating Convenience: With both heating and cooling capabilities, this combo unit is great as an HVAC for all-year-round use; Sleek design and neutral color allow this modern indoor unit to blend into any interior space

Description

Upgrade your home comfort with the 5th generation MRCOOL DIY 18K BTU, 22.5 SEER ductless Heat Pump system. Perfect for spaces up to 800 sq. ft., this energy-efficient system provides year-round heating and cooling, offering the ideal climate for your home. With an impressive 22.5 SEER rating, it’s Energy Star certified, ensuring both exceptional performance and energy savings. The MRCOOL DIY system comes with an 18K condenser, 18K air handler, and a 25 ft. pre-charged line set with R-454A refrigerant, making installation quick and hassle-free. No special tools or professional help are needed—the easy-to-use quick-connect line set allows you to complete the setup on your own. Customize your comfort with multiple modes, including heat, cool, dry (dehumidification), and sleep. The innovative "Follow Me" feature automatically adjusts the temperature based on the remote control’s readings, ensuring the perfect environment. Plus, with the Smart HVAC app, you can control your system from anywhere, making it even more convenient to manage your home’s climate. Enjoy reliable, high-efficiency comfort with the MRCOOL DIY 5th Gen system—your ideal solution for easy installation, energy savings, and year-round comfort.

Brand: MRCOOL COMFORT MADE SIMPLE


Capacity: 1.5 tons


Cooling Power: 18000 British Thermal Units


Special Feature: Dehumidifier, Remote Controlled, Sleep Mode, WiFi Enabled


Product Dimensions: 10"D x 40"W x 14"H


Start year: 2021


Seasonal Energy Efficiency Ratio (SEER): 22.5


Color: White


Voltage: 230 Volts


Noise Level: 46 Decibels


Cooling Power: 18000 British Thermal Units


Additional Features: Dehumidifier, Remote Controlled, Sleep Mode, WiFi Enabled


Color: White


Noise: 46 Decibels


Inverter Type: Has Inverter


Installation Type: Split System


Compressor Type: rotary_scroll


Is Outdoor Unit Required: Yes


Air Conditioner Application: residential, commercial


Voltage: 230 Volts


Power Source: Corded Electric


Wattage: 4600 watts


Item Dimensions D x W x H: 10"D x 40"W x 14"H


Item Weight: 140 Pounds


Window Opening Maximum Width: 20 Inches


Window Opening Minimum Width: 20 Inches


Capacity: 1.5 tons


Floor Area: 750 Square Feet


Room Type: Residential Room


Form Factor: Mini-Split


Brand Name: MRCOOL COMFORT MADE SIMPLE


Start Year: 2021


Model Name: DIY 5TH Gen 18,000 BTU 22.5 SEER2 Energy Star Ductless Mini-Split


Model Number: DIY-18-HP-WM-230D25O


Included Components: 25ft Install Kit 230V


Global Trade Identification Number: 53


UPC: 840255588553


Manufacturer: MRCOOL


Item Type Name: DIY 5th gen Energy Star


Warranty Description: 5-year Parts and 7 year Compessor


Seasonal Energy Efficiency Ratio (SEER): 22.5


Annual Energy Consumption: 4600 Watts


Control Method: Remote, Voice


Controller Type: App Control, Remote Control, Voice Control


BEE Star Rating: 1 Star


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great DIY system!
Style: 12K
Installation really was easy, took just a few hours, although I spread them out over a couple of days. I was ready to buy a cheaper unit and have my HVAC guy help install it, but scored the Mr. Cool at a great discount which made it a no brainer! The included instructions are not that great, but there are lots of videos online on installing Mr. Cool mini splits. I'd recommend watching assorted ones before you begin. Followed the installation per the videos, had no leaks, and the unit worked perfectly the first time i started it up. ... show more
Reviewed in the United States on May 13, 2026 by Randy Banner
    • outstanding product
Style: 9K
Can not go wrong, easy installation. Huge cost savings vice regular central air
Reviewed in the United States on May 5, 2026 by James
    • Easy install!
Style: 12K
Easy to install! Worksvwell!
Reviewed in the United States on June 21, 2026 by Lugenia Fowler
    • Great units!
Style: 12K
Took more to install than the videos suggest but once it was done, we love our units. Purchased three for our new home instead of going with central a/c. So far, we are very pleased with the way they're working.
Reviewed in the United States on June 23, 2026 by Tracy Lambert
    • MRCOOL 18k 5th gen is a great unit.
Style: 18K
I have installed 5 MRCOOL units in my house and they work great. This last unit I’m waiting for the rain to clear out so I can finish the condenser install.
Reviewed in the United States on May 8, 2026 by TBJR8257
    • A $700 Electrician Bill and Holes in My Wall: Dead on Arrival. A $700 Electrician Bill and Holes in My Wall: Dead on Arrival.
Style: 12K
Review Image by Will
Review Image by Will
I purchased the MRCOOL 5th Gen 12K BTU 115V unit (DIY-12-HP-WM-115D25O) expecting a streamlined installation. Instead, I ended up $700 out of pocket, with a dead piece of hardware and holes in my walls. To ensure everything was done strictly by the book, I hired a licensed professional electrician to run a dedicated circuit and hook up the unit, which cost me $700. He verified that the outdoor condenser was receiving a perfect 120V of power. Despite a flawless professional electrical installation, the unit immediately threw an E1 Communication Error upon startup. The outdoor compressor refused to engage, rendering the entire system completely useless right out of the box. When I contacted MRCOOL technical support, their troubleshooting protocol was absurd. Instead of addressing a clearly defective product, they required me to completely dismantle the outdoor unit to extract the motherboard just so I could take pictures of the underside of the PCB for them. Expecting a consumer to perform factory-level diagnostics on a brand-new appliance—after already paying a professional to install it—is unacceptable. With my Amazon return window closing, I chose to pack up this heavy, defective hardware and send it back rather than be strung along by warranty delays. Now I am left out $700 for electrical work I no longer need, while patching 3-inch holes in my drywall and sealing exterior walls. If you buy this unit, you are gambling on factory quality control, and the financial risks are high if you lose. Avoid this product. ... show more
Reviewed in the United States on May 21, 2026 Reviewed in the United States on May 21, 2026 by Will
    • price very reasonable and save alot $ installing yourself
Style: 12K
fairly easy to install just installed have just used very little, very quite, remote very easy to change modes and go thur info, good airflow would buy again
Reviewed in the United States on May 15, 2026 by DM52674
    • 100 percent satisfied
Style: 12K
Glad I did this job myself. Nice machine works great cools and heats my 500 square foot room well. It’s very quiet. Watch some YouTube videos.
Reviewed in the United States on June 3, 2026 by John Bonomi

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