The MRCOOL® DIY® Select 18,000 BTU 230V Ductless Mini-Split Heat Pump System in a sleek matte black finish delivers powerful, energy-efficient heating and cooling for spaces up to 800 square feet, with a 17.3 SEER2 cooling rating and 8.5 HSPF2-4 heating efficiency. Built for true do-it-yourself installation, this complete system pairs the DIYS-18-HP-C-230A11-O outdoor condenser with the DIYS-18-HP-B-WMAH-230A13-O indoor air handler and includes a factory pre-charged 11.5-foot Quick Connect® line set with environmentally friendly R-454B refrigerant — no vacuum pumps, gauges, or HVAC experience required. Smart Wi-Fi control via the MRCOOL® Comfort app, Amazon Alexa and Google Assistant compatibility, Gold Fin® corrosion-resistant coating, and a 2-year compressor / 1-year parts warranty round out a reliable, year-round comfort solution.
| Dimensions & Weight | |
|---|---|
| Condenser Dimensions | 30.12 W" x 11.93 D" x 21.85 H" |
| Air Handler Dimensions | 38.23 W" x 8.98 D" x 12.64 H" |
| Condenser Weight | 62.61 lbs |
| Air Handler Weight | 30.64 lbs |
| Capacity & Performance | |
| Zone Capacity | 1 |
| Cooling Capacity | 17,000 BTU |
| SEER2 | 17.3 |
| EER2 | 9 |
| Outdoor Operating Temperature (Cooling) | -13 to 122°F |
| Heating Capacity | 18,000 BTU |
| HSPF2-4 | 8.5 |
| HSPF2-5 | 6.5 |
| Outdoor Operating Temperature (Heating) | -13 to 75°F |
| Coverage Area | Up to 800 sq ft. |
| Outdoor Noise Level | 55 dB(A) |
| Indoor Noise Level (High / Low) | 46.5 / 18.5 dB(A) |
| Electrical Requirements | |
| Voltage | 208/230V |
| Phase | 1 |
| Cycle | 60Hz |
| Min Circuit Ampacity | 15A |
| Max Fuse Breaker | 20A |
| Refrigerant & Piping | |
| Line Set Length | 11.5 ft. |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 34.92 oz |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Max Line Set Length | 75 ft. |
| Features | |
| Inverter Technology | Yes |
| Wifi Compatibility | Yes |
| App Compatibility | Yes |
| Works with IOS | Yes |
| Works with Android | Yes |
| Remote Control Included | Yes |
| Certifications & Warranty | |
| Warranty | 2 Years Compressor / 1 Year Parts |
What BTU rating should I choose for my air handler?
| Air Handler BTU | Coverage Area/Room Size (Sq. Ft.)* |
| 6K |
Up to 200 Sq. Ft.
|
| 9K |
Up to 375 Sq. Ft.
|
| 12K | Up to 500 Sq. Ft. |
| 18K | Up to 750 Sq. Ft. |
| 24k | Up to 1,000 Sq. Ft. |
| 36k | Up to 1,500 Sq. Ft. |
*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.
