MRCOOL 12000 BTU 230V Ductless Inverter Mini Split Air Conditioner & Heat Pump System, Advantage Series - Wall-Mounted AC Unit w/Heating and Cooling for Home, Office & Commercial Space
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Availability:
Only 3 left in stock, order soon!
Arrives
Tuesday, May 5
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Style: 12000 BTU - 230V
Features
- Powerful Heating & Cooling Performance: Equipped with 12,000 BTU capacity for reliable temperature control and efficiently heats or cools home, office, and commercial areas up to 500 sq. ft.
- Professional Installation: With this ductless mini-split inverter system, installation should be performed by an HVAC technician.
- 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.
- Trusted Quality: MRCOOL offers innovative and energy-saving heating and cooling solutions using advanced technology and performance for convenient, year-round comfort.
Brand: MRCOOL COMFORT MADE SIMPLE
Capacity: 1 Tons
Cooling Power: 12000 British Thermal Units
Special Feature: Eco-friendly,Google Assistant,Wifi
Start year: 2020
Seasonal Energy Efficiency Ratio (SEER): 19
Color: White
Voltage: 230 Volts
Noise Level: 56 Decibels
Refrigerant: R-454B
Cooling Power: 12000 British Thermal Units
Additional Features: Eco-friendly,Google Assistant,Wifi
Color: White
Noise: 56 Decibels
Refrigerant: R-454B
Filter Type: Washable
Inverter Type: Has Inverter
Installation Type: Split System
Compressor Type: rotary_scroll
Is Outdoor Unit Required: Yes
Air Conditioner Application: Versatile indoor use
Seasonal Energy Efficiency Ratio (SEER): 19
Efficiency: High
Control Method: App
Controller Type: Remote Control
BEE Star Rating: 4 Star
Warranty Type: [AO] Registered Warranty
Number of Heating Elements: 1
Brand Name: MRCOOL COMFORT MADE SIMPLE
Start Year: 2020
Model Name: Advantage 3rd Gen 12,000 BTU
Model Number: A-12-HP-C-230B, A-12-HP-WMAH-230B
UPC: 810512031559
Manufacturer: MRCOOL COMFORT MADE SIMPLE
Voltage: 230 Volts
Power Source: Corded Electric
Wattage: 140000 watts
Is Product Cordless: No
Capacity: 1 Tons
Floor Area: 500 Square Feet
Form Factor: Mini-Split
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, May 5
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 18000 BTU - 230V
Really love this unit. It heats and cools our small space here in Florida and keeps the electric bill down too. The app controls it when away or at home although quirky. The remote control is great. It was fairly easy to install and doesn't take up much space. Lots of YouTube videos show you how to do it. You have an inside, small hang on the wall unit, and a small outside unit. Very quiet. We don't even know if it's running or not until we walk up to it and feel if air is blowing or not. Really can't hear it run. No problems with it and I would buy it again.
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Reviewed in the United States on July 27, 2024 by JaxFL
Style: 24000 BTU - 230V
Great product! Works great, love that it has heat also for the cold nights.
Reviewed in the United States on February 12, 2026 by Judy
Style: 12000 BTU - 230V
I deeply regret purchasing the Mr. Cool 12,000 BTU mini split unit. My husband installed this in our rabbit barn—a space well within the unit’s advertised capacity—and from the start, it was nothing but trouble. Over the short month and a half we had it, the unit was unreliable, inconsistent, and ultimately dangerous. Over the weekend, it completely failed without warning. As a result, we tragically lost five of our rabbits due to the heat. This is not just a matter of poor performance—it’s a heartbreaking and avoidable outcome. We had a HVAC professional inspect the unit and were told it was 100% out of Freon. For a brand-new unit marketed as DIY and barely a month old, this is completely unacceptable. I trusted the reviews and the hype around Mr. Cool, but buying this unit was a huge mistake. It was marketed as an easy, reliable solution, and it failed on every front—functionally and ethically. Buyer beware…
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Reviewed in the United States on August 12, 2025 by Amazon Customer
Style: 12000 BTU - 230V
I bought this because of a suggestion from a builder I work with frequently. He knew I like to do things myself. After investigating I decided on the 12k 240 volt system. I installed indoor and outdoor unit. I attempted to make the connections but stopped when I started to remove the caps on the inside unit, it started hissing, which I wasn’t expecting. I have a HVAC guy I know personally and requested one of his guys visit to complete the installation. The technician mentioned the hissing was just nitrogen in the unit. He completed the typical servicing they would do on mini splits, pressure test and pulling vacuum. I’ve run the system for a month and have no complaints. It works great and it’s super quiet. The WiFi module paperwork wasn’t updated for this new model but I figured it out.
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Reviewed in the United States on July 17, 2025 by Greg
Works way better than any ac unit I ever gotten. Easy to install. Quiet as heck! My electric bill didnt spike up the fan speed was fast yet quiet. The size is perfect and energy efficient! Very good quality.
Reviewed in the United States on June 20, 2025 by T x N Y
Style: 24000 BTU - 230V
Update 1/11/21: Changing rating to 4 stars from 5. Heating is not nearly as efficient as cooling. Here in the Autin area it sometimes drops to the 30s and rarely to the 20s. I've noticed that when the temp falls below 40F it struggles to maintain 68 degrees in the garage. The garage has insulated doors with heated rooms above and on two sides. Yesterday, I noticed it went into defrost at least three times. All-in-all I am still happy, but I had hoped the heating function would have been a little better. Update 10/14: This thing is still going strong. Has run almost every day since June. This thing is awesome!!! Why did I wait so long? Quite as a mouse. Colder than a few hearts I know. Why I chose the Advantage unit over the DIY - Simply because you can't trim the line-set on the DIY. I called MR. Cool and told them I couldn't live with a bunch of coiled AC lines laying on the ground. They suggested the Advantage series. As long as you are comfortable cutting copper line, flaring copper line, running a vacuum and looking at a gauge, then you are set. There are a million YouTube videos showing you how to do it. The unit came with 16 feet of line-set and I only used 50 inches of it. I bought all parts on Amazon except for the conduit, main breaker, and 10 gauge power cable to the disconnect. I also had to purchase a short piece of 3.5" PVC as the supplied sleave for the line-set was too short for my wall. Below are the extra items I purchased on Amazon: 3.5" hole saw for brick - tip - rent a nice roto hammer if you need to go through brick and don't own one. - https://www.amazon.com/gp/product/B07ZSRTFJH/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 Power Whip https://www.amazon.com/gp/product/B0756N989G/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 Disconnect - https://www.amazon.com/gp/product/B000LF42NK/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 410a Valve Core removal tool - I did not like this tool. Poor quality but ended up working https://www.amazon.com/gp/product/B07MCWMQ97/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1 Line-set cover - https://www.amazon.com/gp/product/B07SPL5RZD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 Nylog - https://www.amazon.com/gp/product/B008HOSQQQ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 Wall Mount for outdoor unit - https://www.amazon.com/gp/product/B00LDU9R2I/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 Delivery - Why buy at a big box hardware store when Amazon delivers to your door? Came on a lift-gate truck and they delivered it inside the garage. They took it off the pallet and took the pallet with them (which I preferred). The driver was extremely polite. Communication - They (the transport company) kept calling the number on the order, which was not my number. It was an Amazon number in San Antonio. I contacted the seller prior so I had the shipper number. I called the transport company and made arrangements for delivery. I gave them my direct number. However, the driver still had only the Amazon number. Luckily, he called dispatch and they texted me that he was on the way. Could have had the unit on Friday, but got it Monday. Regardless, I was fine with that. Lesson learned - contact the seller and get the transport company contact info and call them. Installation instructions - The manuals are written by someone who speaks English as a secondary language. Spell and grammar check were definitely not used on the install manual. I bought the 24K unit, but the manual is the same for all of them. On page 12 (fig 4.3) there is an itsey-bitsey, teeny-tiny diagram which is needed to mount the indoor unit bracket and locate the center of the hole needed for the line-set. I went online and downloaded the manual in PDF, blew up the diagram and printed it out full page. Note - there is no template with the Advantage Series. The diagram indicates that the vertical center-line for the hole is 151 mm from the center of the right leg of the bracket. There are no reference marks on the bracket to measure from. HOWEVER!!, there is stamped into the metal instructions to measure 120 mm from bracket edge to locate the center-line. So that is what I did. I then went to check my work and measured 151 mm from the center-line I just drew back to the bracket. It came no where near the center of the bracket. So I called tech support for a warm-and-fuzzy. He said to measure about 5 or so inches from edge of bracket. Since the diagram requires you to calculate the outside edge of the unit and then measure from this imaginary line, I asked him about the horizontal center-line for the hole using the bracket as the reference point and he said about an inch up from the bottom of the bracket. Since the hole is 3.5" in diameter I already knew I needed to be 1.75" up from the bottom of the bracket. I politely said goodbye and figured it out on my own. I prefer to work in metric since it is so much easier, but here are the measurements I ended up using to lovcate the center of the hole I needed to drill. 120mm (4.72 in) from bracket right edge for vertical center-line, and 45 mm (1.8 in) from bottom of bracket up for horizontal line. The cross-hair gives the center of the hole. Note: There are other options for the line-set. I chose to have the line-set leave the right rear of the unit. Speaking of measurements - The outdoor unit mounting measurements are in goofy fractions. For instance, 21.26 inches and 350.52 mm. Really? I can't imagine needing to be within 1/100th of a mm to mount a unit. This was more of an annoyance than anything else. Anyway. My point is to take the instructions with a grain of salt. Do your own measurements and math and you will be fine. To the fun part - What can I say? This thing rocks! I was tempted to sleep in the garage last night. Difficulty rating is a "6" on a scale of 1 to 10; Even with the ambiguity of the install manual. The longest part of the process was drilling the hole. I spent 3 hours studying the measurements and also drilling the hole. This also included making sure everything lined up perfectly outside outside. I had the line-set come out perfectly centered between the outside unit and the disconnect. Spent one hour running power. This included the disconnect 45 minutes prepping and hanging inside unit. (after getting bracket hung.. See "hole" above). 45 minutes hanging outside unit on wall. 3 hours making all connections, including trimming line-set and vacuuming system. This was a long review, but I hope this helps someone make a decision. I'm happy with my purchase.
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Reviewed in the United States on June 21, 2020 by Scott W. Scott W.
Style: 24000 BTU - 230V
Purchased 24KBtu unit for a 14x65 2Br Mobile Home. Relatively straightforward installation, but not for everyone. I made a dumb mistake in wiring between the indoor unit and outdoor, resulting in an error that wasn't described in the otherwise good documentation. Tried to call the vendor, left a message, but never heard back. I did find the answer to my problem on the vendor's website, and the issue was easily fixed. Purchased a vacuum pump, gauges, and line set covers from Amazon to complete the project. It has worked great since I rectified my wiring mistake. It's only been in heat mode (Jan in NC), and generates impressive heat and airflow at next to zero noise. The condenser unit outside is also very quiet. Time will tell on the reliability and efficiency, but everything I've seen thus far makes me optimistic.
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Reviewed in the United States on February 25, 2020 by Roger McMinn Roger McMinn