The MRCOOL Advantage 5th Gen 18,000 BTU single-zone mini split delivers 208–230V heating and cooling for spaces up to 800 square feet, with a wall-mounted Wi-Fi enabled indoor air handler and a 16 ft. line set included for a complete system installation.
Highlights
- 18,000 BTU of single-zone heating and cooling capacity for spaces up to 800 sq. ft. — suited to a large master bedroom, studio apartment, or rec room
- Built-in Wi-Fi connectivity via the MRCOOL Smart HVAC Controller app, with Amazon Alexa and Google Assistant compatibility
- Achieves SEER2 19.2 and HSPF2-4 9.3 for efficient year-round climate control
- R-454B refrigerant offers roughly 80% lower Global Warming Potential than previous-generation refrigerants
- Gold Fin corrosion-resistant coating on the outdoor condenser, suited to coastal or harsh-weather climates
- Follow Me remote sensing, refrigerant leak detection, timer mode, and low-ambient cooling operation down to 5°F
Specs & Features
| Zone Configuration |
Single Zone |
| Cooling Capacity |
18,000 BTU/h |
| Heating Capacity |
18,800 BTU/h |
| Air Handler Type |
Wall Mount |
| Coverage Area |
Up to 800 sq. ft. |
| SEER2 |
19.2 |
| EER2 |
10.8 |
| HSPF2-4 |
9.3 |
| HSPF2-5 |
7.5 |
| Power Supply |
208–230V, 60Hz, 1Ph |
| Refrigerant |
R-454B, 40.57 oz charge |
| Piping Size (Liquid/Gas) |
1/4"–1/2" |
| Air Handler Model |
A-18-HP-WMAH-230D-O |
| Air Handler Dimensions (W x D x H) |
37.99 x 8.46 x 12.56 in. |
| Air Handler Net/Gross Weight |
24.47 / 32.63 lbs |
| Air Handler Sound Level (Turbo/Hi/Mi/Lo/Si) |
50.5 / 45 / 36 / 24 / 19 dB |
| Condenser Model |
A-18-HP-C-230D-O |
| Condenser Dimensions (W x D x H) |
31.69 x 12.99 x 21.81 in. |
| Condenser Net/Gross Weight |
72.31 / 78.48 lbs |
| Condenser Sound Level (Hi) |
56 dB |
| Line Set |
16 ft., included |
| Certifications |
AHRI certified, NEEP ccASHP listed, CEE Tier 1 - North qualified |
| Warranty |
1-year parts and remote; 2-year compressor; eligible for the MRCOOL Care Program (Limited Lifetime warranty upon enrollment) |
| Installation |
Licensed HVAC technician required (not a DIY unit) |
Details
Avermont Direct is an authorized MRCOOL dealer offering the Advantage 5th Gen 18,000 BTU single-zone mini split as a complete system with a 16 ft. line set. This is not a DIY unit — it must be installed by a licensed HVAC technician for proper safety and warranty eligibility. Coverage of up to 800 square feet makes it a practical fit for a large master bedroom, studio apartment, or rec room, and the system is eligible for the MRCOOL Care Program's Limited Lifetime warranty upon enrollment, in addition to its standard 1-year parts/remote and 2-year compressor coverage.
Need Help?
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
