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Description
MRCOOL DIY® Select 12,000 BTU Single Zone Mini Split Heat Pump 115V with 11.5 ft Quick Connect Line SetPowerful DIY Comfort for Medium Sized Spaces The MRCOOL DIY Select 12,000 BTU Single Zone Mini Split Heat Pump delivers reliable year round heating and cooling for spaces up to 550 square feet without the cost of professional installation. Designed for true DIY installation, this 115V mini split system includes an 11. 5 ft pre charged Quick Connect line set, allowing homeowners to install their own HVAC system without vacuum pumps, gauges, or
Powerful DIY Comfort for Medium-Sized Spaces
The MRCOOL DIY® Select 12,000 BTU Single Zone Mini Split Heat Pump delivers reliable year-round heating and cooling for spaces up to 550 square feet without the cost of professional installation. Designed for true DIY installation, this 115V mini split system includes an 11.5 ft pre-charged Quick Connect® line set, allowing homeowners to install their own HVAC system without vacuum pumps, gauges, or refrigerant handling.
Built on proven MRCOOL® technology, the DIY Select series offers a budget-friendly alternative to traditional ductless systems while still delivering the features that matter: inverter-driven efficiency, quiet operation, smart control, and simplified installation.
What Makes the DIY Select 12K Different?
Many low-cost mini split systems still require proper evacuation, specialized tools, and refrigerant handling. When those steps are skipped, performance and longevity can suffer. The MRCOOL DIY Select 12K eliminates that risk with factory pre-charged Quick Connect® fittings, allowing homeowners to install the system without opening the refrigerant circuit.
The result is a simpler, cleaner, and more reliable installation process that removes one of the biggest barriers to owning a ductless mini split system.
Key Features
- 12,000 BTU heating and cooling for spaces up to 550 sq. ft.
- 115V operation ideal for residential applications
- Includes 11.5 ft pre-charged Quick Connect® line set
- No vacuuming or refrigerant handling required
- Up to 17.5 SEER2 cooling efficiency
- Up to 9.0 HSPF2-4 heating efficiency
- Inverter-driven compressor for consistent temperature control
- Ultra-quiet operation as low as 17.5 dB(A)
- Smart control via MRCOOL® Comfort App
- Compatible with Alexa and Google Assistant
- R-454B refrigerant for future-ready performance
- 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 is a major advantage over standard DIY systems that often include longer 16 ft or 25 ft line sets. This shorter length helps reduce excess coiling, resulting in a cleaner and more professional installation.
For installations requiring longer runs, optional pre-charged line sets are available in 16 ft, 25 ft, 35 ft, and 50 ft lengths.
Designed for True DIY Installation
The MRCOOL DIY Select 12K removes the most complicated part of mini split installation. The pre-charged Quick Connect® line set eliminates the need for vacuum pumps, gauges, and refrigerant handling, allowing homeowners to install the system with basic tools.
This significantly reduces installation cost while maintaining reliable system performance, making it an ideal solution for homeowners who want professional-level comfort without the professional install bill.
White Standard, Black Option Coming Soon
The system includes a standard white indoor air handler designed to blend into most residential spaces. MRCOOL has also introduced a black air handler option for the DIY Select series, ideal for modern interiors, garages, and design-focused environments.
The black SKU has not yet been released but will be available as a selectable option once launched.
Smart Control and Connected Comfort
Control your system from anywhere using the MRCOOL® Comfort App. Adjust temperature, set schedules, and monitor performance directly from your smartphone. Voice control compatibility with Amazon Alexa and Google Assistant adds even more convenience.
12,000 BTU System Specifications
| System Type | Single Zone Mini Split Heat Pump |
|---|---|
| Cooling Capacity | 12,000 BTU |
| Heating Capacity | 12,000 BTU |
| Voltage | 115V |
| Coverage Area | Up to 550 sq. ft. |
| SEER2 | 17.5 |
| HSPF2-4 | 9.0 |
| 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 17.5 dB(A) |
| System SKU | DIYS-12-HP-115A11-O |
Ideal Applications
- Bedrooms
- Living rooms
- Home offices
- Garages and workshops
- Rental properties
- Additions and bonus rooms
Why Buy from MRCOOL DIY Direct?
MRCOOL DIY Direct specializes in MRCOOL DIY mini split systems, installation accessories, and replacement parts. We help homeowners across the country choose the right system for their space, layout, and budget.
If you're looking for a mid-size DIY mini split that balances power, efficiency, and ease of installation, the MRCOOL DIY Select 12,000 BTU Mini Split Heat Pump delivers dependable comfort without the installation cost.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy