Quick answers to questions about ordering, compatibility, and installation.
The MRCOOL DIY Select 12K BTU Mini Split System delivers powerful heating and cooling with a sleek black indoor air handler that upgrades the look of any space. Because if you’re installing something on your wall, it might as well look like it belongs there.
Designed for spaces up to 550 sq ft, this 115V ductless heat pump is perfect for bedrooms, garages, offices, additions, and open living areas. With 17.5 SEER2 efficiency, quiet operation, and smart control, you get consistent comfort without the energy waste of traditional systems.
The included 11.5 ft pre-charged Quick Connect® line set eliminates the need for vacuum pumps, gauges, or refrigerant handling. Just mount the unit, connect the line set, power the system, and enjoy reliable comfort without the typical installation hassle.
| Component | Details |
|---|---|
| Outdoor Condenser | MRCOOL DIY Select 12K 115V heat pump condenser |
| Indoor Air Handler | Black wall-mounted air handler |
| Pre-Charged Line Set | 11.5 ft Quick Connect® DIY line set |
| DIYPRO® Cable | 13 ft communication cable |
| Remote Control | Included |
| Installation Hardware | Included |
| Specification | 12K 115V DIY Select |
|---|---|
| Cooling Capacity | 12,000 BTU |
| Heating Capacity | 12,000 BTU |
| SEER2 | 17.5 |
| HSPF2-4 | 9.0 |
| HSPF2-5 | 6.8 |
| Coverage Area | Up to 550 sq ft |
| Indoor Noise Level | 44.5 / 40 / 35 / 25.5 / 17.5 dB(A) |
| Outdoor Noise Level | 54 dB(A) |
| Refrigerant | R-454B |
| Specification | Requirement |
|---|---|
| Power Supply | 115V, 60Hz, Single Phase |
| Outdoor Minimum Circuit Ampacity | 19.5A |
| Maximum Breaker / Fuse | 20A |
Important: Always size your breaker based on the outdoor condenser specifications and follow local electrical codes. Electricity has a long history of punishing bad decisions.
| Coverage | Details |
|---|---|
| Compressor | 2-Year Warranty |
| Parts | 1-Year Warranty |
| Remote | 1-Year Warranty |
The MRCOOL DIY Select 12K system is a strong choice if you want more coverage than a 9K unit while still keeping installation simple. It delivers reliable heating and cooling, modern design, and efficient performance without requiring professional installation—making it ideal for homeowners who want control over both comfort and cost.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Get help with ordering, compatibility, or installation questions.
Last seen items
Authorized Service Center for the following Brands: Daikin - Goodman - MRCOOL - GWIN - Amana - Costway