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MRCOOL 24000 BTU 230V Ductless Inverter Mini Split Air Conditioner & Heat Pump System, 4th Gen DIY - Wall-Mounted AC Unit w/Heating and Cooling for Home, Office & Commercial Space

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Availability: In Stock.
Fulfilled by Spreetail

Arrives Aug 11 – Aug 16
Order within 15 hours and 47 minutes
Available payment plans shown during checkout

Style: 24K


Size: 4th gen


Features

  • Air Conditioner: 4th Generation DIY mini split air conditioner equipped with a low refrigerant alarm to prevent costly repairs and air filter cleaning and replacement alerts to ensure optimal air quality and efficiency
  • Easy DIY Installation: No special tools, equipment, or training are required thanks to pre-charged Quick Connect line sets, making installation a breeze and completing in just a few hours
  • Low Ambient Cooling: Capable of operating in cooling mode from as low as 5 degrees Fahrenheit, making it ideal for spaces up to 1,000 square feet
  • Auto Restart Feature: In case of power outages, the unit automatically restarts at previous settings, ensuring continuous comfort without manual intervention
  • Comprehensive System Includes: Comes with an outdoor heat pump condenser, indoor wall-mounted air handler, upgraded DIYPro cable, remote control, Smart HVAC controller module WiFi smart kit, and installation kit for a complete solution

Brand: MRCOOL COMFORT MADE SIMPLE


Capacity: 2 Tons


Cooling Power: 24000 British Thermal Units


Special Feature: 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., 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., 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 40"H


BEE Star Rating: 1 Star


Seasonal Energy Efficiency Ratio (SEER): 20.5


Color: White


Voltage: 230


Noise Level: 33 dB


Manufacturer: ‎MRCOOL


Part Number: ‎DIY-24-HP-WM-230C25


Item Weight: ‎150 pounds


Product Dimensions: ‎16 x 30 x 40 inches


Item model number: ‎4th gen


Size: ‎4th gen


Color: ‎White


Style: ‎24K


Material: ‎Plastic


Pattern: ‎Split System


Power Source: ‎Corded Electric


Voltage: ‎230


Wattage: ‎35


Installation Method: ‎Split System


Item Package Quantity: ‎1


Sound Level: ‎33 dB


Mounting Type: ‎Wall


Special Features: ‎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., 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., 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.


Included Components: ‎MRCOOL DIY 24K BTU 4th Gen 1-Zone 20.5 Seer Energy Star Ductless Mini-Split Air Conditioner.


Batteries Required?: ‎No


Warranty Description: ‎Warranty


Capacity: ‎2 Tons


Floor Area: ‎1000 Square Feet


Date First Available: June 8, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 11 – Aug 16

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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Top Amazon Reviews


  • easy DIY
Style: 12K Size: 5th gen
easy DIY install - works great. produxt seems well built
Reviewed in the United States on June 15, 2025 by kauai or bust

  • Truly DIY
Style: 24K Size: 4th gen
I purchased this with some curiosity whether it was truly DIY and was pleasantly surprised that it was. You do have to have electrical knowledge or have an electrician do the wiring. The instructions along with some Youtube videos definitely helped. I am pretty handy overall but I found this to be pretty straight forward to install. For function it works fantastic. I have it in a very well insulated Workshop, but it maintains the temp and humidity better than expected. on a 30 degree day it was blowing 95 degree air when demanded. It did struggle when temp was below 15 and could not maintain 62 degrees at night. It was routinely going in to defrost mode and during that time it isnt heating. I was not surprised by this heat pumps routinely struggle in low temps this does better than an older mini-split system i have but still isnt a heater during very cold periods. ... show more
Reviewed in the United States on March 15, 2024 by Brian

  • Well engineered product for DIY
Style: 24K Size: 4th gen
I thought the pre-charged refrigerant lines were well engineered. I was a little concerned about doing them without a torque wrench, but they pretty much have stoppers you can tighten to which makes it really nice. Be wary of buying the suggested amazon wall bracket as it doesn't give enough clearance to the back wall to bend the refrigerant lines in, you'll need a good 10-12" room to the wall you mount it to (the mr cool separately sold bracket give you plenty of room to work with). I'd say it took me about 15 hours (including taking time to go buy some parts/tools I didn't have), but I had a complicated line-set run than most people would. I think the unit iteslf and instructions were really good. ... show more
Reviewed in the United States on May 4, 2025 by Amazon Customer

  • Mr. Cool NOT!!!!!
Style: 36K Size: 4th gen
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

  • SUMMER TEMPS OVER 105°f? This is your unit.
Style: 18K Size: 4th gen
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 by Robert S. Robert S.

  • Could not ask for more!
Style: 18K Size: 5th gen
This thing is AMAZING! We run a small business out of one of our garages. This makes it so nice when the temperatures reach 100° or 20°. It is amazingly fast, extremely quiet, and just the right size for what we needed.
Reviewed in the United States on July 22, 2025 by Ann O'Bryan

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