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MRCOOL - DIY-12-HP-115B25 DIY 12k BTU 22 SEER Ductless Heat Pump Split System 3rd Generation - Energy Star 120v (DIY-12-HP-115B)

4.5 4.5 out of 5 stars 1,801 ratings

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12,000 BTUs
Smart 12K BTUs
Split System

About this item

  • Country Of Origin : United States
  • Easy Diy Installation: Pre-Charged R-410A 25Ft Quick Connect Line Doesn'T Require Special Tools, Equipment, Or Training
  • New Smarthvac App: Wifi Control - Compatible With Alexa And Google Assistant - You Can Control Your Diy Anywhere With Your Apple Or Android Smart Device And An Internet Connection
  • Designed To Efficiently Heat And Cool A Single 500 Sq Ft Room
See more product details

Customer ratings by feature

Comfort
4.9 4.9
Noise level
4.6 4.6
Easy to install
4.5 4.5
Energy efficiency
4.5 4.5

Compare with similar items

This Item
MRCOOL - DIY-12-HP-115B25 DIY 12k BTU 22 SEER Ductless Heat Pump Split System 3rd Generation - Energy Star 120v (DIY-12-HP-115B)
MRCOOL - DIY-12-HP-115B25 DIY 12k BTU 22 SEER Ductless Heat Pump Split System 3rd Generation - Energy Star 120v (DIY-12-HP-115B)
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Price$1,199.00$1,399.00$999.00$1,298.00$1,433.00
Delivery
Get it Apr 1 - 3
Get it Apr 4 - 9
Get it Apr 3 - 4
Get it Apr 1 - 3
Get it Apr 2 - 3
Customer Ratings
Noise level
4.6
4.4
4.6
4.3
4.4
4.4
Energy efficiency
4.5
4.3
4.4
4.1
4.3
4.3
Tech Support
3.7
3.6
4.3
2.6
3.6
3.6
Easy to install
4.5
4.2
4.2
4.2
Sold By
Sylvane
Jacks Small Engines
Jacks Small Engines
Sylvane
Jacks Small Engines
cooling power
18000 btus
9000 btus
24000 btus
12000 btus
12000 btus
control method
application
remote
remote, application
power source
Corded Electric
Hardwired
Corded Electric
Corded Electric
Hardwired
Hardwired
special feature
Google Assistant,Wifi
Heating And Cooling Function
WiFi Enabled, Remote control
Heating,Cooling
Heating And Cooling Function
Heating And Cooling Function
model name
DIY 12k BTU 22 SEER
Ductless Mini
Easy Pro
voltage
120 volts
20 volts
230 volts
115 volts
18 volts
SEER rating
22
20
17
19
18
18.5

From the manufacturer

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B07Q5KDKT6
About MRCOOL

MRCOOL ductless mini-split air conditioners and heat pumps are the cutting edge of what modern, flexible fabrication can produce. These air conditioners rely on state-of-the-art manufacturing processes and advanced design to deliver high efficiency air comfort anywhere you need it.

MRCOOL 3rd Generation Enhanced DIY

Ductless Mini-Split AC and Heat Pump System with WiFi Smart Kit

When it comes to doing it yourself, the MRCOOL 3rd Generation Enhanced DIY is for made you. The included 25′ pre-charged lineset allows you to install this innovative ductless system without special tools, equipment, or training. You can control your DIY anywhere with your Apple or android smart device and an Internet connection. The new MRCOOL Smart HVAC Controller Module and App fully support Google Assistant & Amazon Alexa out of the box.

  • Easy DIY Installation
  • Smartphone App Control from Anywhere
  • Leakage Detection Alarm Protects Your Investment
  • Low Ambient Cooling down to 5°F
  • Digital Assistant Ready

COOL

B07Q5KDKT6

B07Q5KDKT6

Easy DIY Installation

The included 25′ pre-charged lineset allows you to install this innovative ductless system without special tools, equipment, or training.

Digital Assistant Ready

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

Low Ambient Cooling Down to 5°F

This feature makes the MRCOOL DIY the ideal system for server rooms, greenhouses, and any other application that requires cooling all ye

B07Q5KDKT6

1

1

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MRCOOL DIY MockUp DML_vrv_6B_2 MRCOOL MRCOOL MRCOOL
DIY-12-HP-115B Mini-Split AC and Heat Pump DIY-18-HP-230B Mini-Split AC and Heat Pump DIY-24-HP-230B Mini-Split AC and Heat Pump DIY-36-HP-230B Mini-Split AC and Heat Pump
Customer Reviews
4.5 out of 5 stars
1,801
4.5 out of 5 stars
1,801
4.5 out of 5 stars
1,801
4.5 out of 5 stars
1,801
Cooling Capacity 12,000 BTU/h 18,000 BTU/h 23,000 BTU/h 34,500 BTU/h
Heating Capacity 12,000 BTU/h 18,000 BTU/h 25,000 BTU/h 36,000 BTU/h
Power Input 115V 230V 230V 230V
SEER: 22.0 SEER 20.0 SEER 20.0 SEER 16 SEER
HSPF: 10 HSPF 10 HSPF 10 HSPF 8.9 HSPF
Indoor Dimensions (WDH) 31.57 x 7.44 x 11.69 42.52 x 8.90 x 13.19 42.52 x 8.90 x 13.19 49.57 x 11.10 x 14.25
Outdoor Dimensions (WDH) 31.50 x 13.11 x 21.81 33.27 x 14.29 x 27.64 37.24 x 16.14 x 31.89 37.24 x 16.14 x 31.89

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Product information

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MRCOOL

MRCOOL - DIY-12-HP-115B25 DIY 12k BTU 22 SEER Ductless Heat Pump Split System 3rd Generation - Energy Star 120v (DIY-12-HP-115B)


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Product guides and documents

Product Description

Introducing the MRCOOL E Star DIY 3rd Gen 12k BTU 22 SEER Ductless Mini-Split Heat Pump. These are ductless mini-split heat pumps with enhanced WIFI engineered to make setup not only quick and easy, but the MRCOOL DIY E Star Series is flexible enough to be installed virtually anywhere — without requiring specialized tools or expensive equipment. The 12, 000 BTU unit is 22 SEER and designed to heat and cool up to 500 square feet both efficiently and effectively. Our SmartHVAC app is compatible with Alexa and Google assistant. You can also control your DIY anywhere with your Apple or Android smart device with an Internet connection. Doing it yourself has never been easier with the new MRCOOL E Star DIY. This unit is shipped in two boxes.

Important information

Bulb Voltage

120 volts

Customer reviews

4.5 out of 5 stars
4.5 out of 5
1,801 global ratings

Customers say

Customers are happy with the quality, ease of installation, insulation, noise and value of the air conditioner. For example, they mention that it works well, it's relatively easy to install and that the directions are clear. They're also happy with efficiency. That said, some complain about the support and opinions are mixed on size.

AI-generated from the text of customer reviews

326 customers mention261 positive65 negative

Customers like the quality of the air conditioner. For example, they say it works well, is quiet, and is impressed with the performance. Some mention that the special fittings used are unique.

"...dehumidify on-demand on a few hot summer days and it worked great without any dramatic impact to power consumption...." Read more

"...It is mostly like any other mini split from China. Pretty good quality, and the most unique thing is the special fittings used to allow "DIY" install..." Read more

"...The unit works great, and it really is unbelievably whisper quiet. I'm glad I did it because I love having the air-conditioned garage...." Read more

"...Heats down to 20 f for sure. AC function easily keeps the space at 70 degrees on 100 degree days with 90% humidity...." Read more

297 customers mention268 positive29 negative

Customers find the installation process of the air conditioner to be relatively easy. They mention that the DIY aspect is very straightforward and simple, the directions are incredibly clear, and the electrical connection was very easy. The concept is simple, requiring you to drill a hole from where your inside unit mounts to where your main panel is.

"...The concept is simple - drill a hole from where your inside unit mounts to the outside, run the connection lines through the hole to the compressor,..." Read more

"...The rest of the installation was straight forward - lots of videos online with good information.The good - the cooling is excellent!..." Read more

"...Installing the new unit was a breeze. Everything was already in place, the wall bracket, the hole in the wall, and the outdoor pad and wiring...." Read more

"...Are they easy to install … no. If you have patience… then almost anyone can put a MRCOOL in. Do they heat and cool efficiently…yes...." Read more

159 customers mention121 positive38 negative

Customers like the insulation of the air conditioner. They say it cools or heats up their house, keeps their computer room as cold as they want it, and heats their garage quickly. They also appreciate the iPhone app for controlling temperature and turning the AC on or off when not at home.

"...All in all super happy - it's quiet, keeps the office a perfect temperature and was easy to install. Would definitely recommend!" Read more

"...The not so good - the heating is ok. With outside temperature of 50 and garage at 65 it heats up to the 70's no problem. 40 degrees out it's ok...." Read more

"...the unit for over a year and a half and it is great so far, heats up the garage quickly and maintains temp with little effort...." Read more

"...Do they heat and cool efficiently…yes. I have a house built in 1941...." Read more

149 customers mention138 positive11 negative

Customers are satisfied with the noise level of the air conditioner. They mention that it operates quietly inside and out, and that they can't hear it running at all.

"...All in all super happy - it's quiet, keeps the office a perfect temperature and was easy to install. Would definitely recommend!" Read more

"...a rating of a 5 because the installation was relatively easy, noise level is low, provides excellent cooling and I like the wireless connectivity..." Read more

"...This gives me some concern.- The unit overall is super quiet and very effective...." Read more

"...The unit works great, and it really is unbelievably whisper quiet. I'm glad I did it because I love having the air-conditioned garage...." Read more

49 customers mention37 positive12 negative

Customers like the value of the air conditioner. They say it's a great value as a DIY product, it saves hundreds of dollars, and it'll be well worth the purchase. Some mention that it takes some time to install.

"...Heating is good but not great. Overall a good value." Read more

"...It it holds up it was well worth the investment." Read more

"...Well worth the investment, you can install it 100% yourself if, pay attention:1. You are an electrician...." Read more

"...In addition there are 3 rolls of nylon tape in the box that are pretty much useless because it's only sticky on the beginning end...." Read more

31 customers mention27 positive4 negative

Customers like the efficiency of the air conditioner. For example, they mention it's very quiet, super energy efficient, and light on the power consumption. Some say that it works flawlessly with no noticeable increase in their electricity bill.

"...In summer, I left it to cool at 72 degrees and again, no spike in electricity from what i spent cooling just the house the year before...." Read more

"Efficient, comfortable, silent heating and cooling in a DIY package...." Read more

"...Also, this thing uses so little electricity -- the meter barely speeds up when it comes on. Absolutely silent too...." Read more

"...I can set it to “dry” between guests, and save energy by not running heat or air. It recirculates the air in the room and removes the humidity." Read more

32 customers mention17 positive15 negative

Customers are mixed about the size of the air conditioner. Some mention it's perfect for a small room or garage, while others say that it takes up little space on the wall.

"...It is whisper quiet both inside and out and keeps my entire single floor house (1450 sq ft) very cool and comfortable and seems to be just idling...." Read more

"...Well the tube was two inches too short. Apparently my wall was too thick...." Read more

"...this split-system to anyone who needs a capable, quiet unit with capacity to spare." Read more

"...was not a Mr.Cool product and is too small to properly enclose the refrigerant lines, the drain line, and the power cable...." Read more

33 customers mention3 positive30 negative

Customers are dissatisfied with the support provided by the air conditioner. They mention that the support is poor, non-responsive, and lacking. Some customers also report that the tech support is busy.

"...For install, one issue is that there is no tech support, my questions went completely unanswered...." Read more

"...Update 07-25-22: Apparently, MR COOL has absolutely zero support. My unit now won't work correctly when I put it on Auto Mode...." Read more

"...Horrible support and unfortunate product malfunction.Edit: They eventually messaged back and arranged for my unit to be replaced...." Read more

"...However, tech support is non existent to diagnose error code. How do you get these people to contact you in reasonable time?..." Read more

Easy to install assuming everything else is in place and works great!
5 Stars
Easy to install assuming everything else is in place and works great!
We have an older house that didn't have HVAC in my office which is 15x27, but also not well insulated. We had been using a window A/C unit for the summer which worked OK, but in the winter I was running 3 heaters to try to keep it above 60 degrees. We had a mini-split professionally installed in another part of our house and it was amazing, but I didn't want to spend $5k-$7k on another one and heard good things about these units.Shipping was quick but did require a specialized delivery that was easy. It came in two boxes - the compressor for outside, and the head unit for inside. The concept is simple - drill a hole from where your inside unit mounts to the outside, run the connection lines through the hole to the compressor, and connect everything up with the precharged lines. I would highly recommend going to YouTube and watching some of the videos people have going into a little more depth about the process, but it really is about as simple as that.A couple of things worth pointing out.1) Most of the videos skip over the need to already have 220v electrical running to the unit. I installed a new 20A breaker and ran 12/2 wiring from the breaker through conduits to a non-fused A/C cutoff switch, and then ran a 12/2 whip from the cutoff to the unit. For most people I'd highly recommend just having an electrician run those for you so it's ready to go2) You have to drill a hole from inside to outside. It needs to be around 3.5" in diameter. That's fine if you have a wood frame siding. Ours is brick. I don't care what the videos say, if you have a brick house go rent a core driller. I used a 4" x 17" core driller I rented for $200 from Home Depot and it took me about an hour to cut the hole (keeping it watered and going slowly to avoid burning out the bit or the drill). It made a night and day difference.3) You'll either need a ground pad or mounting brackets for the compressor. I picked up a ground pad from a local HVAC supply warehouse for around $40 and mounted the compressor to it.4) Make sure you are reading the right manual. They sent both the multi-zone and single-zone manuals with our unit. There's not a lot of difference, but if this is your first time doing this, the single-zone is going to keep you focused on the right things5) Finally - *read the manual thoroughly before starting*. You only get one shot with the precharged lines, so make sure you understand the process and the routing. It's not difficult, but you don't want to get it wrong. I used a spray bottle with dish soap and water as my leak checkerOnly other thing worth pointing out - DIY doesn't mean not needing permits or inspections. You'll want to potentially check your local jurisdiction to find out if you need permits for any of this.All in all super happy - it's quiet, keeps the office a perfect temperature and was easy to install. Would definitely recommend!
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Top reviews from the United States

Reviewed in the United States on January 5, 2023
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5.0 out of 5 stars Easy to install assuming everything else is in place and works great!
Reviewed in the United States on January 5, 2023
We have an older house that didn't have HVAC in my office which is 15x27, but also not well insulated. We had been using a window A/C unit for the summer which worked OK, but in the winter I was running 3 heaters to try to keep it above 60 degrees. We had a mini-split professionally installed in another part of our house and it was amazing, but I didn't want to spend $5k-$7k on another one and heard good things about these units.

Shipping was quick but did require a specialized delivery that was easy. It came in two boxes - the compressor for outside, and the head unit for inside. The concept is simple - drill a hole from where your inside unit mounts to the outside, run the connection lines through the hole to the compressor, and connect everything up with the precharged lines. I would highly recommend going to YouTube and watching some of the videos people have going into a little more depth about the process, but it really is about as simple as that.

A couple of things worth pointing out.

1) Most of the videos skip over the need to already have 220v electrical running to the unit. I installed a new 20A breaker and ran 12/2 wiring from the breaker through conduits to a non-fused A/C cutoff switch, and then ran a 12/2 whip from the cutoff to the unit. For most people I'd highly recommend just having an electrician run those for you so it's ready to go

2) You have to drill a hole from inside to outside. It needs to be around 3.5" in diameter. That's fine if you have a wood frame siding. Ours is brick. I don't care what the videos say, if you have a brick house go rent a core driller. I used a 4" x 17" core driller I rented for $200 from Home Depot and it took me about an hour to cut the hole (keeping it watered and going slowly to avoid burning out the bit or the drill). It made a night and day difference.

3) You'll either need a ground pad or mounting brackets for the compressor. I picked up a ground pad from a local HVAC supply warehouse for around $40 and mounted the compressor to it.

4) Make sure you are reading the right manual. They sent both the multi-zone and single-zone manuals with our unit. There's not a lot of difference, but if this is your first time doing this, the single-zone is going to keep you focused on the right things

5) Finally - *read the manual thoroughly before starting*. You only get one shot with the precharged lines, so make sure you understand the process and the routing. It's not difficult, but you don't want to get it wrong. I used a spray bottle with dish soap and water as my leak checker

Only other thing worth pointing out - DIY doesn't mean not needing permits or inspections. You'll want to potentially check your local jurisdiction to find out if you need permits for any of this.

All in all super happy - it's quiet, keeps the office a perfect temperature and was easy to install. Would definitely recommend!
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32 people found this helpful
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Reviewed in the United States on July 8, 2022
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5.0 out of 5 stars Excellent cooling
Reviewed in the United States on July 8, 2022
I bought this unit to heat/cool my 4 car garage (approx 950 sq ft). I converted a section of the garage to my workout and office space. The pre-charged lines worked perfectly and saved me the hassle of buying extra tools. The rest of the installation was straight forward - lots of videos online with good information.

The good - the cooling is excellent! With outside temperature of 100 the garage will get as hot as 95. The Mr Cool unit can drop the temperature in my office space to 85 in 5 minutes and under 80 in less than 15 minutes. The rest of the garage takes a bit longer to cool but eventually the entire space feels nice. I keep the setting at around 79 which honestly feels like 72 to me.

The not so good - the heating is ok. With outside temperature of 50 and garage at 65 it heats up to the 70's no problem. 40 degrees out it's ok. 30 degrees is where it struggles a bit. It can heat my office space up to 68 but I wouldn't call it "warm". My walls and ceiling are insulated but I don't have insulated garage doors. I might insulate the doors before winter to see if I get improvement. It is impressive in that it can still provide heat even when it's 5 degrees outside, however, I do not run it below 20 primarily because it's not super effective at that level and I don't want to risk damaging the unit.

I'm giving this a rating of a 5 because the installation was relatively easy, noise level is low, provides excellent cooling and I like the wireless connectivity app on my phone. Heating is good but not great. Overall a good value.
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10 people found this helpful
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Reviewed in the United States on October 9, 2022
12 people found this helpful
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