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MRCOOL COMFORT MADE SIMPLE

MRCOOL 18000 BTU 230V Ductless Inverter Mini Split Air Conditioner & Heat Pump System, 4th Gen DIY Single-Zone - Wall-Mounted AC Unit w/Heating and Cooling for Home, Office & Commercial Space

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Availability: Only 2 left in stock, order soon!
Fulfilled by Spreetail
Arrives Jul 8 – Jul 13
Order within 15 hours and 35 minutes
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Style: 18K


Size: 1 Count (Pack of 1)


Features

  • Powerful Heating & Cooling Performance: Equipped with 18,000 BTU capacity for reliable temperature control and efficiently heats or cools home, office, and commercial areas up to 750 sq. ft.
  • DIY Easy Installation: With this ductless mini-split inverter system, installation is streamlined, resulting in less mess and significantly reduced costs.
  • Energy-Efficient & Cost-Saving: Designed for power efficiency and quiet operation, allowing you to relax and indulge in comfort without high electricity costs.
  • All-Season Reliability: Powered with both heating and cooling capabilities, making it a highly versatile HVAC unit for all times of the year. Features a sleek and modern finish that easily blends into any interior space.

Brand: MRCOOL COMFORT MADE SIMPLE


Capacity: 1.5 Tons


Cooling Power: 18000 British Thermal Units


Special Feature: Easy DIY Installation, Precharged R-410 Quick Connect Line Set, Pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training., Energy Star-Certified Efficiency. Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified., Enhanced control from anywhere. Control your MRCOOL DIY anywhere with your Apple or Android smart device and an internet connection., Features leakage detection. When the MRCOOL DIY® detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort., Low ambient cooling feature allows for cooling down to 5 degrees for any application that requires cooling all year. Auto restart feature will start your Mrcool automatically after a power outage when the power is restored See more


Product Dimensions: 16"D x 30"W x 22"H


Seasonal Energy Efficiency Ratio (SEER): 22


Color: White


Voltage: 230


Noise Level: 31 Decibels


Refrigerant: R-410A


Cooling Power: 18000 British Thermal Units


Additional Features: Easy DIY Installation, Precharged R-410 Quick Connect Line Set, Pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training., Energy Star-Certified Efficiency. Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified., Enhanced control from anywhere. Control your MRCOOL DIY anywhere with your Apple or Android smart device and an internet connection., Features leakage detection. When the MRCOOL DIY® detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort., Low ambient cooling feature allows for cooling down to 5 degrees for any application that requires cooling all year. Auto restart feature will start your Mrcool automatically after a power outage when the power is restored


Color: White


Noise: 31 Decibels


Refrigerant: R-410A


Filter Type: Nylon


Inverter Type: Has Inverter


Installation Type: Split System


Compressor Type: Rotary


Is Outdoor Unit Required: Yes


Air Conditioner Application: Residential


Core Material: Aluminium Alloy


Voltage: 230


Power Source: Corded Electric


Wattage: 30


Is Product Cordless: No


Seasonal Energy Efficiency Ratio (SEER): 22


Efficiency: High


Annual Energy Consumption: 22.7 Kilowatt Hours


Air Flow Efficiency: 452.5 Cubic Feet Per Minute Per Watt


Warranty Type: Limited


BEE Star Rating: 1 Star


Brand Name: MRCOOL COMFORT MADE SIMPLE


Model Name: 4th gen Energy Star Ductless Mini-Split


Model Number: DIY-18-HP-WM-230C25


Included Components: Ductless Mini-Split


UPC: 810035935167


Manufacturer: HVAC Distributing LLc


Item Type Name: Ductless Mini-Split


Unit Count: 1.0 Count


Warranty Description: Manufacturer


Item Dimensions D x W x H: 16"D x 30"W x 22"H


Item Weight: 100 Pounds


Window Opening Maximum Width: 26 Inches


Window Opening Minimum Width: 26 Inches


Control Method: App, Remote, Voice


Controller Type: Remote Control


Capacity: 1.5 Tons


Floor Area: 750 Square Feet


Form Factor: Mini-Split


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 8 – Jul 13

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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Similar Products

Top Amazon Reviews

    • Cools and heats my house
I installed this myself. Before having this I was using window a/c units and it would not keep my house cooled. Once I put this MRCOOL 36,000 BTU Ductless Mini Split in it made a huge difference. I mounted the outdoor unit on the side of my home and while it does make some noise, overall it is pretty quiet! It was the perfect size for my house. The performance is exactly what I expected. I have noticed my energy bill is cheaper running this than the window units making it a great value for the price. ... show more
Reviewed in the United States on May 16, 2026 by Robert
    • Easiest of all the DIY units
Style: 18K Size: 1 Count (Pack of 1)
I did extensive research on the do-it-yourself style mini splits for my 20x40 shop and decided on this one for various reasons. First, I got quotes from local HVAC companies and the range for my shop was between $3000-$4000. For that price, I could buy 2 Mr Cool units. The reason I got the quotes was because most of the brand name, high rated companies like LG and Mitsubishi come with long warranties - like 10-15 yrs. The do it yourself brands are much less - less than 5 years. But, again, after I got the quotes, it was a no brainer. I recommend going to their website, reading the installation instructions, watching the videos, and having someone help since the outside and inside units are heavy and bulky to try to do alone. I followed the instructions and it was very easy to install. I did my electrical work one afternoon and installed the entire system the next day. The system is a “smart” unit which basically means it is Wi-Fi capable, has an app, can adjust the temps in “Eco” mode, and is very easy to use. I live in east Texas so the highs stay around 95-100 with a heat index around 110 for 4-6 weeks every August. I programmed the system to stay at 82 (which is probably an actual temp around 78) so I essentially have a climate controlled storage area/shop. If I’m going to be in the shop when I’m getting off work, I go on the app and set the temp to 74 so it’s cooling when I get home. It does not seem to struggle to keep at 82 and can cool down the space in less than an hour. Be aware that, apparently, all of the mini splits’ indoor fans run continuously. At least that’s been my experience after asking multiple people. However, the noise on both the fan inside and the outdoor unit are extremely quiet and I haven’t seen a major increase in my electric bill. I have turned it off for time to time but not in August in Texas! I’m cautiously optimistic about the longevity and durability of this unit so this review is subject to change which I will do if necessary. For now, I would highly recommend this system. ... show more
Reviewed in the United States on August 22, 2025 by gdx2
    • SUMMER TEMPS OVER 105°f? This is your unit. SUMMER TEMPS OVER 105°f? This is your unit.
Style: 18K Size: 1 Count (Pack of 1)
Review Image by Robert S.
It has been in service since I installed it almost 18 months ago. No issues whatsoever with the unit that is the18k model installed in a 24ft wide x 24ft long x 8ft tall (ceiling) garage in Glendale Arizona. I can confirm with this square footage having partially insulated walls and mostly insulated single garage door with a 2nd story above, the 18k unit is sized effectively. If you live in a lower temp environment you could get away with 12k but a hot vehicle pulled in to the garage. Will make the unit work for a few hours. In that scenario, this should be the proper size for most two car garages, regardless of the climate. Do your own research, of course. However, I did a great deal of research on mini split units all the way from Mitsubishi down to knock-off Chinese units. regardless of the manufacturer, most units are not rated for outside temperatures above 108°F, MrCool DIY’s are and they provide proof and testing on their site. So if you live in warmer climate, knock off Chinese units are not designed for high outside temperatures, and a majority of them will disable themselves when temperatures go above 105°f as they have an ambient temperature sensor on the outside unit that keeps them from overheating. I can confirm that this unit works effectively at Arizona desert temperatures over 120°f. Of course there is a large efficiency lost at that temperature but the ratings provided by the company prove this unit is more efficient than brands three times the cost. In fact, I can’t find a mini split unit on the market regardless of cost that has the same efficiency at temperatures over 115.°f. Yes, someone that is a home DIYer can install this unit themselves. However, I highly recommend you hire an electrician to run your disconnect.. everything else most DIYers should and can do. I know (and can look up) NEC and local codes. But if you cause an electrical fire by a faulty install, good luck getting a payout from your homeowners insurance. Same story if you sell your home with the unit attached and it wasn’t installed to code. And yes, running your disconnect could cost anywhere from $300-1200, but that’s life. Some have stated these units leak. My unit has not lost efficiency and I’ve monitored monthly kilowatt draw since last year and it’s pretty consistent. I did hook up a manifold gauge, and the pressure is low based manufacturer spec for target super heat. However, I assume that it was a loss in the hose or possibly initial seepage on the quick connect (I didn’t leak check after install). I read low pressure/charge as a common theme with these quick connects. I have been told the line set is charged with R410a and so is the unit. However, if this is incorrect or there was a slight seepage while in the box or during initial connect, that would explain the current levels. It’s fractionally low and probably losing 15% efficiency. You can buy small one time bottles on the Internet to charge mini splits that come with a gauge, you can pick one of these up and I recommend you do, no HVACR-EPA license needed. I haven’t charged mine since I need to move my main house split unit and I’ll wait till I buy a full R 410a tank. When the temp is below 90° outside, keeping my garage at 78°, I barely see much change in my kilowatt usage total for my home. Results may vary.. However this unit is hugely efficient I also feel keeping the garage below 100° keeps heat ingress out of my house, thereby raising the efficiency of my main unit. @@NOTE: I am also using MRCOOL’s wall mount for the unit. The unit will produce a low frequency vibration, though it comes with rubber feet, which help with mid frequency, if you will attach this to your house, you will hear the unit running when the home is quiet. For me it’s only noticeable when it’s dead quiet in the house and I’m on that side. My guess have never been able to hear it. So I’m probably neurotic. lol ... show more
Reviewed in the United States on October 18, 2024 Reviewed in the United States on October 18, 2024 by Robert S.
    • I install it without any help, but a second set of hands wouldn't hurt.
If you have a hole saw and a crescent wrench. You can install this unit. Quiet and efficient. everything worked as advertised.
Reviewed in the United States on November 12, 2025 by Amazon Customer
    • Mr. Cool NOT!!!!!
I purchased this unit which is 36,000BTUs rated for 1500 sq ft for my 1200 sq ft shop. It was pretty easy to install though NOBODY would use a 1/2" conduit connection from the power supply to the condenser, so it should be a 3/4" connection. Other than the crap instructions and pictures, took about 2 days or 10 hours. I am VERY capable of doing this work and will say my 1st attempt at an AC unit of any kind. Bottom line it turned right on, blows cold air despite the poor fan speed and simply is incapable of keeping my shop below 87 degrees, even on some days when it is just above 80 degrees. I did 4 tests all starting around 97, 92, 87, 95 inside and 101, 96, 94, and 83 inside. I NEVER got a reading below 87 degrees in my shop even after running for over 24 hours straight through the night when the temperature outside fell into the low 70s each night. I think I would need 4 of these units to get the workable comfort level that I was expecting. It is too bad, I cannot return it a so I am out 2 days work and $3000. Don't make the same mistake!!!! ... show more
Reviewed in the United States on July 12, 2023 by Bryan
    • Upgraded from 2 ton to 3 ton
Shipping was fast (3 days). Installed it myself with no help in 5 hours. Used the entire 25’ line set as the condenser was set on concrete blocks and the blower was placed up high on the 2nd floor. 3 ton unit is whisper quite on low speed but a little noisy on turbo. It took just 30 Minutes on turbo to cool 1800 square feet from 80 to 72. Placed it on whisper low and it maintained 72 all day when outside temps hit 86. This was an upgrade from a 2 ton unit that I had for 7 years. ... show more
Reviewed in the United States on May 26, 2026 by Ron Thorn
    • Not happy
Style: 18K Size: 1 Count (Pack of 1)
Not real happy with it. I only have 400 sq ft. Had to size up. For heat you need to set it to 74 to be at 70. Air runs non stop at times even though it is 5 degrees cooler than I have it set at. Other times it is warmer and not running. I called a few times. They just make excuses.
Reviewed in the United States on September 8, 2025 by Colby Dauch
    • 3 weeks and stopped working.
Style: 18K Size: 1 Count (Pack of 1)
It's thrown a p4 code after running great for 3 weeks. Took four days to hear back from Mr. Cool. They gave me a list to try and I will try them and see if it works. I think they thought it's never run at all because the list mainly consist of checking the fittings and releasing the freon. I'm not hopeful. I'll keep updating the progress. 8/4/23 Mr cool tech called on a Saturday, which was perfect for me. We opened the Condensor box, checked a few electrical lines, looked at the big white sticker on the actual condenser to see if it changed colors, by over heating, it did not. He concluded there is an internal issue that can't be fixed. They are sending me a new outside condenser to replace the broken one, which UPS tried to deliver yesterday to a different house in a different town. Still had not arrived. 8/5/23 UPS did it... they actually delivered the warranty unit to a different address in a different town. Now it's lost they say...it's not lost, they delivered it to a different house and the person signed for it. Why don't they just go back and get it, they have the address because they told me it. Now who knows how long this mess will take. It's only 105 here in Texas. It's been a year and the 2nd unit is running great. Does exactly what it says it does. If it wasn't for the hassle above...I would give this a 5 star. ... show more
Reviewed in the United States on July 27, 2023 by The Connors

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