MRCOOL DIY® Select 24,000 BTU Single Zone Mini Split Heat Pump 230V with 11.5 ft Quick Connect Line Set
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Maximum DIY Comfort for Large Spaces
The MRCOOL DIY® Select 24,000 BTU Single Zone Mini Split Heat Pump is built to deliver powerful heating and cooling for spaces up to 1,050 square feet without the cost of professional installation. Designed for larger homes, garages, workshops, and open living areas, this 230V mini split system includes an 11.5 ft pre-charged Quick Connect® line set, making true DIY installation possible without vacuum pumps, gauges, or refrigerant handling.
The DIY Select series offers a budget-friendly solution for homeowners who want high-capacity ductless HVAC performance while avoiding expensive contractor installation costs. With inverter-driven efficiency, smart control, and simplified setup, it delivers reliable comfort without the complexity.
What Makes the DIY Select 24K Different?
Many budget mini split systems still require professional tools, proper evacuation, and refrigerant handling. When those steps are skipped, performance and longevity can suffer—especially on larger systems where installation errors are more costly.
The MRCOOL DIY Select 24K eliminates that risk with factory pre-charged Quick Connect® fittings. These sealed connections allow homeowners to install the system without opening the refrigerant circuit, making installation faster, easier, and more reliable.
Key Features
- 23,000 BTU heating and cooling capacity for spaces up to 1,050 sq. ft.
- 230V power for high-capacity single-zone applications
- Includes 11.5 ft pre-charged Quick Connect® line set
- No vacuuming or refrigerant handling required
- Up to 16.5 SEER2 cooling efficiency
- Up to 8.3 HSPF2-4 heating efficiency
- Inverter-driven compressor for stable temperature control
- Quiet operation as low as 21.5 dB(A)
- Smart control via MRCOOL® Comfort App
- Works with Amazon Alexa and Google Assistant
- R-454B refrigerant for future-ready compliance
- White indoor air handler standard
- Black indoor air handler option coming soon
Includes 11.5 ft Pre-Charged Line Set
The included 11.5 ft pre-charged line set helps create a cleaner and more efficient installation compared to longer standard line sets that often leave excess tubing coiled near the condenser.
For installations that require longer runs, optional pre-charged line sets are available separately in 16 ft, 25 ft, 35 ft, and 50 ft lengths.
Designed for True DIY Installation
The MRCOOL DIY Select 24K removes the most complex part of traditional mini split installation. With pre-charged Quick Connect® fittings, homeowners can install the system using basic tools without vacuum pumps, gauges, or refrigerant handling.
This dramatically reduces installation costs, especially for larger systems where professional labor can significantly increase total project cost.
White Standard, Black Option Coming Soon
The indoor air handler is available in a clean white finish designed to blend into most spaces. A black air handler option is also being introduced, ideal for modern interiors, garages, workshops, and design-forward environments.
The black SKU has not yet been released and will be added as a selectable option once available.
Smart Control and Connected Comfort
Control your system from anywhere using the MRCOOL® Comfort App. Adjust temperature, create schedules, and monitor performance from your smartphone. Voice control compatibility with Amazon Alexa and Google Assistant adds convenience and flexibility.
24,000 BTU System
| System Type | Single Zone Mini Split Heat Pump |
|---|---|
| Cooling Capacity | 23,000 BTU |
| Heating Capacity | 23,000 BTU |
| Voltage | 230V |
| Coverage Area | Up to 1,050 sq. ft. |
| SEER2 | 16.5 |
| HSPF2-4 | 8.3 |
| Refrigerant | R-454B |
| Included Line Set | 11.5 ft pre-charged Quick Connect® line set |
| Optional Line Set Lengths | 16 ft, 25 ft, 35 ft, and 50 ft |
| Indoor Noise Level | As low as 21.5 dB(A) |
| System SKU | DIYS-24-HP-230A11-O |
Ideal Applications
- Large living areas
- Open floor plans
- Garages and workshops
- Basements
- Home additions
- Rental properties
Why Buy from MRCOOL DIY Direct?
MRCOOL DIY Direct specializes in MRCOOL DIY mini split systems, pre-charged line sets, installation accessories, and replacement parts. We help customers across the United States find the right system for their space, layout, and installation goals.
If you need a high-capacity DIY mini split system that can handle large spaces while still offering simple installation and reliable performance, the MRCOOL DIY Select 24,000 BTU Mini Split Heat Pump is built for exactly that.
DIY Single-Zone System
Outdoor Condenser
Indoor Air Handler
Pre-Charged DIY Line Set
Control Wire
Wireless Remote
Installation Manual
WiFi Dongle / Smart Controller Adapter
Wall Mounting Plate
Wall Sleeve / Wall Pass-Through
Line Set Wrap / Insulation Tape
Download installation manuals, spec sheets, and warranty documents for this system.
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Key Features of the MRCOOL Walk-In Cooler Refrigeration System
Pre-Charged Quick Connect® Line Set
True DIY installation starts here. Factory pre-charged with refrigerant and equipped with sealed Quick Connect® fittings, eliminating the need for vacuum pumps, gauges, or refrigerant handling.
No Special Tools or HVAC Experience Required
Install it yourself with confidence. Designed for homeowners, not technicians. No brazing, no vacuuming, no licensing—just a straightforward install process using basic tools.
Fast 4-Step Installation Process
Mount. Connect. Power on. Done. Simplified installation reduces setup time and eliminates the complexity of traditional mini split systems.
Inverter-Driven Efficiency
Comfort that adjusts to your space. Variable-speed compressor technology automatically adjusts output to maintain consistent temperatures while reducing energy consumption.
Future-Ready R-454B Refrigerant
Designed for long-term performance. Uses next-generation R-454B refrigerant with lower environmental impact and compliance with evolving regulations.
Smart Control Anywhere
Full system control from your phone. Use the MRCOOL® Comfort App to adjust temperature, set schedules, and monitor performance from anywhere. Compatible with Alexa and Google Assistant.
Rated 4.7 / 5 Stars
4700+ Verified Reviews
Comfort That Speaks for Itself
See why homeowners and pros alike trust MRCOOL DIY systems to deliver comfort, savings, and easy installation.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
I never thought I’d install my own HVAC system, but MRCOOL made it possible. The instructions were easy, and the pre-charged lines saved me from hiring a tech. Cools my garage workshop perfectly!
Our MRCOOL mini-split runs really quiet — you can barely tell it’s on. Our electric bill dropped about 35% this summer. Very impressed with the efficiency
Installed this in my detached office. Took me a Saturday morning and a friend to lift the outdoor unit. Works flawlessly — heats in winter and cools in summer.
I swapped my old central unit for two MRCOOL DIY mini-splits. Same comfort, way lower bills. The inverter technology really makes a difference.
Had a small question during installation and Vanessa picked up right away. They walked me through it step by step — best customer service I’ve had in years.
Keeps our sunroom comfortable in 100°F summers and comfy in the winter. The heat pump feature is amazing — one system for both heating and cooling!
I’ve remodeled a few homes, and MRCOOL DIY systems are a game-changer. No need for HVAC pros or special tools — everything is plug-and-play.
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