The MRCOOL 4th Generation DIY 36K BTU, 18 SEER Ductless Heat Pump is 1 of the most powerful single-zone systems offered in the DIY Series. This complete system has the heating and cooling performance to cover an area up to 1500 sq. ft. while still being able to achieve an 18 SEER efficiency rating. All of this performance is within a system that can be easily installed by a homeowner with a few hand tools thanks to the patented MRCOOL Pre-Charged Quick-Connect Line Set that makes connecting refrigerant piping as simple as turning a few wrenches. The benefits of this system are not limited to the performance and ease of installation. This system also has many operational functions and features that sets it apart. The user can select from up to 6 operation modes auto, heat, cool, fan-only, dry (dehumidification), and sleep. This system features a Follow Me function which can constantly adjust the temperature of the room by sensing the temperature from the location of the handheld remote controller. This system can also be operated with an Apple or Android smartphone by downloading the Smart HVAC app. MRCOOL offers a limited lifetime compressor warranty on this system.
Up to 18 seer
Gold fin condenser: corrosion-resistant coastal living-don't worry, our condenser is built to resist long term corrosion
Variable-speed DC inverter compressor technology cuts operating costs
R-410A environmentally friendly refrigerant
Standard 7-year compressor/5-year parts warranty, register for limited lifetime compressor warranty
Auto cool, Automatic shutoff, Defrost, Fan only option, Mobile App, Overload protection, Sleep setting, Timer, Wifi
Minimum Outdoor Temperature (F)
5
Mount Location
Wall Mount
Number of cool settings
3
Number of Fan Speeds
Variable
Number of Tons
3 ton
Pack Size
1
Power Options
Hardwired
Remote Access
Remote Access
Requires Hub?
No Hub Required
Returnable
90-Day
Smart Home
Smart Home Enabled
Smart Home Protocol
Wi-Fi
Voice Control Hub Required
No Hub Required for Voice Control
Voltage (v)
208/230v
Wattage (watts)
Not Measured
Works With
Alexa, Alexa, Google, Google Assistant
Zone Capacity
1 Zone
Warranty / Certifications
Certifications and Listings
AHRI Certified, CSA Certified, CSA Listed, Energy Star
Manufacturer Warranty
5-year Parts/7-year Compressor
Seasonal Energy Efficiency Ratio (SEER)
18
Questions & Answers
227Questions
Q:Does this come with the covers for the outside of the house to hide the line set?
by|Nov 29, 2023
1 Answer
Answer This Question
A:Â This bundle, DIY-24-HP-230C25, does not include line set covers. However, they can be purchased separately.
by|Nov 29, 2023
Q:Is there a tax credit with this model
by|Nov 14, 2023
0 Answer
Answer This Question
Q:What disconnect do I need for 35 amp?
by|Nov 13, 2023
1 Answer
Answer This Question
A:Â You can use a non fused 60 amp disconnect.
by|Nov 17, 2023
Q:Can this unit use solar panels only to work? If not, what is the model number of a direct fead mc4 connection unit?
by|Nov 11, 2023
1 Answer
Answer This Question
A:Â Please reach out to us directly for further assistance with this. Our email address is support@mrcool.com or you can contact us by phone at 270-366-0457.
by|Nov 16, 2023
Showing 1-4 of 227
Customer Reviews
4.7 out of 5
(218)
4.7
out of 218 reviews
85% recommend this product
5
178
4
23
3
2
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3
1
12
Filter by:
Showing 1-10 of 218 reviews
Aug 30, 2023
I’m enjoying my Mr. Cool. It has surpassed my expectations.
by
Verified Purchase
Aug 8, 2023
Won't power up
i purchased the DIY 18K and installed it over 2 days. I followed the instructions and i thought all was going well. 2 30A breakers confirmed 120vac at the panel, wired up 30A Disconnect w/ 30A fuses confirmed 120vac on both load lines, load lines 1
by
Response from MR COOL TeamAug 11, 2023
We do apologize for the issues. Please contact me directly at csmanager@mrcool.com.
1 found this review helpful
Jul 19, 2023
We bought the 24k btu 4th gen. Unit. We normally don't set it below 79. It cools very well. We have a 2 br 1 bath home. My husband and son installed it pretty quickly. We recommend it.
by
Response from MR COOL TeamJul 31, 2023
Thank you for the review! Glad you guys are enjoying your equipment!!
Verified Purchase
3 found this review helpful
May 29, 2023
Easy install
Installed this unit to cool my garage workshop. Took my time, followed instructions and the install was not bad at all. Now with temp 95 outside, my workshop is a cool 76 degrees.
by
Response from MR COOL TeamJun 14, 2023
We are glad you are enjoying your system and that your install went well! Thank you for the review!
Recommended
2 found this review helpful
Jul 3, 2022
Perfect unit to heat and cool my oversize garage.
DIY installation was simple. Took me about 3 hours to install with help hanging the unit on the wall. My garage is 48' long, 40' wide with 14' ceiling, fully insulated. 100 degree days are no problem anymore, set the thermostat to 74 it runs on low fan, super quiet. Love this unit, wishing now I would have bought this years ago.
by
Recommended
1 found this review helpful
Jul 7, 2019
Good product for the money
I just bought this unit with low expectations since I live in Florida. I decided to go mini splits over conventional so I can control costs. It was a good choice. Easy to install. Wall bracket should be built to adapt to standard 16 on center wall framing.
by
Recommended
Customer review from MRCOOL
Nov 30, 2023
by
Nov 30, 2023
Really like the product. Quite and has lots of control functions. The only thing I would improve are the installations instructions. Instructions were a bit lame. Really needed a "big picture" of how the components function.
by
Nov 29, 2023
Excellent unit, very quiet, cools and heats very efficiently.
by
Nov 29, 2023
unable to review as was only sent half the product....very poor customer service access to MRCOOL
by
Response from MR COOL TeamNov 30, 2023
We do apologize for the inconvenience, please email me directly at csmanager@mrcool.com.
This system is meant to be installed by a HVAC technician. The newly designed 3rd generation Advantage Series, with improved efficiency ratings up to 16 SEER, delivers high performance comfort from the moment it's activated. And its competitive price makes it a consumer favorite that's tough to beat. The MRCOOL Advantage condenser and wall mounted air handler is an ideal combination of superior product quality, energy efficiency, quiet operation and financial value. The condenser incorporates a high performance compressor with eco-friendly, chlorine-free R-410A refrigerant. The MRCOOL Advantage is the clear choice for consumers who want to combine superior interior comfort with environmentally friendly technology. The MRCOOL Advantage now includes the new SmartHVAC Wi-Fi control module that features an easier setup process, improved functionality and works with Amazon Alexa and Google Assistant.
This MRCOOL DIY 39,000 BTU 3.25 Ton 4 Zone Ductless Mini Split Air Conditioner and Heat Pump with Wall Mounted Air Handlers bundle includes: 48K BTU Condenser, three 9K BTU Wall Mounts, one 12K BTU Wall Mount, 35/35/50/50ft. Quick Connect lines (1/4 X 1/2), 4 Remotes, and 4 Smart HVAC Wi Fi kits. Each 9K BTU Wall Mount is capable of heating and cooling up to 300 Sq Ft. The 12K BTU Wall Mount is capable of heating and cooling up to 500 Sq Ft. MRCOOL offers an easy DIY ductless mini split installation with their patented DIY pre charged quick connect line sets that makes connecting refrigerant piping as simple as turning a few wrenches. The innovative Gold Fin anti corrosion technology makes this a great choice for those in coastal regions where corrosion is more likely. With a sleek design and quiet operation, the mini split wall mounted air handler is efficient and economic. Whether it be new construction, retrofit, greenhouse, server room or anything between they are designed to effectively and efficiently cool and/or heat your desired location. It can be operated with the included remote, Alexa, or Google Assistant. This system is backed by a 7 year compressor warranty and 5 year parts warranty.
This MRCOOL DIY 36,000 BTU 3 Ton 3 Zone Ductless Mini Split Air Conditioner and Heat Pump with Wall Mounted Air Handlers bundle includes: 36K BTU Condenser, two 9K BTU Wall Mounts, one 24K BTU Wall Mount, 25/25ft. Quick Connect lines (1/4 X 1/2), 25ft. Quick Connect lines (3/8 X 5/8), 3 Remotes, and 3 Smart HVAC Wi Fi kits. Each 9K BTU Wall Mount is capable of heating and cooling up to 300 Sq Ft. The 24K BTU Wall Mount is capable of heating and cooling up to 1000 Sq Ft. MRCOOL offers an easy DIY ductless mini split installation with their patented DIY pre charged quick connect line sets that makes connecting refrigerant piping as simple as turning a few wrenches. The innovative Gold Fin anti corrosion technology makes this a great choice for those in coastal regions where corrosion is more likely. With a sleek design and quiet operation, the mini split wall mounted air handler is efficient and economic. Whether it be new construction, retrofit, greenhouse, server room or anything between they are designed to effectively and efficiently cool and/or heat your desired location. It can be operated with the included remote, Alexa, or Google Assistant. This system is backed by a 7 year compressor warranty and 5 year parts warranty.
This MRCOOL DIY 21,000 BTU 1.75 Ton 2 Zone Ductless Mini Split Air Conditioner and Heat Pump with Wall Mounted Air Handlers bundle includes: 27K BTU Condenser, one 9K BTU Wall Mount, one 12K BTU Wall Mount, 25/25ft. Quick Connect lines (1/4 X 1/2), 2 Remotes, and 2 Smart HVAC Wi Fi kits. The 9K BTU Wall Mount is capable of heating and cooling up to 300 Sq Ft. The 12K BTU Wall Mount is capable of heating and cooling up to 500 Sq Ft. MRCOOL offers an easy DIY ductless mini split installation with their patented DIY pre charged quick connect line sets that makes connecting refrigerant piping as simple as turning a few wrenches. The innovative Gold Fin anti corrosion technology makes this a great choice for those in coastal regions where corrosion is more likely. With a sleek design and quiet operation, the mini split wall mounted air handler is efficient and economic. Whether it be new construction, retrofit, greenhouse, server room or anything between they are designed to effectively and efficiently cool and/or heat your desired location. It can be operated with the included remote, Alexa, or Google Assistant. This system is backed by a 7 year compressor warranty and 5 year parts warranty.