MRCOOL
MRCOOL DIY 5th Gen - R454B - 18K Hyper Heat BTU 230V Condenser w/ 25ft Install Kit
1.5 Ton | SEER2 21.2 | R-454B | 208/230V
- 18000 BTU cooling capacity
- Up to 21.2 SEER2 rated efficiency
- Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
Experience year-round comfort with the MRCOOL® DIY® 18k BTU 208/230V Hyper Heat 21.2 SEER Ductless Heat Pump Single Zone Mini Split Condenser—a high-performance solution designed for easy installation without the need for professional tools or experience. Perfect for spaces ranging from 500-800 sq. ft., this system is compatible with both our stylish wall-mounted air handlers and the discreet DIY® OuttaSight® Ceiling Cassette.
Installation is quick and hassle-free, thanks to the 25-foot Quick Connect® line set, which comes pre-charged with eco-friendly R-454B refrigerant. No vacuum pump or gauges required. The included DIYPRO® cable adds extra durability, offering protection against outdoor elements, animals, and everyday wear.
Control your comfort effortlessly with several convenient options: a handheld remote, the SmartHVAC mobile app for Apple and Android, or hands-free voice commands via Amazon Alexa and Google Assistant. The Gold Fin® condenser coating helps resist corrosion, making it a dependable option even in coastal climates.
Advanced features enhance both convenience and efficiency. Auto-Restart resumes unit function after a power outage, Timer allows for customized operation based on your schedule, and Sleep maximizes energy usage while you sleep.
For ultimate peace of mind, the MRCOOL® DIY® 18k BTU Hyper Heat Single Zone Mini Split includes a 7-year compressor and 5-year parts warranty with eligibility for the MRCOOL® Care Program for ultimate performance and confidence.
Additional specifications
| UPC | 840255588096 |
|---|---|
| Series | DIY Hyper Heat |
| Refrigerant charge (oz) | 52.21 |
| Heating capacity (BTU/h) | 18000 |
| HSPF2 (region V) | 8.5 |
| Airflow (CFM) | 1765.8 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 19 |
| Max fuse / breaker (A) | 25 |
| Inverter | Yes |
| Metering device | EEV |
| Line set included (ft) | 25ft |
| Max line set length (ft) | 75 |
| Min ambient cooling (F) | -22 |
| Min ambient heating (F) | -22 |
| AHRI certified | Yes |
| ENERGY STAR certified | Yes |
| UL listed | Yes |
| Parts warranty (years) | 5 Years |
| Compressor warranty (yrs) | 7 Years |
| Shipping W x H x D (in) | 40.55 x 29.53 x 18.11 |
| Shipping weight (lbs) | 120.15 |
Documents
- Specification sheet (PDF)
- Installation manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Mini-Split |
|---|---|
| Capacity | 18000 BTU |
| Tonnage | 1.5 Ton |
| Compressor / Stages | Rotary |
| SEER2 | 21.2 |
| EER2 | 12.5 |
| HSPF2 | 11 |
| Sound Level | 58 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 1/4" / Suction 1/2" |
Physical & Certifications
| Dimensions (W x H x D) | 35.04 x 26.5 x 13.46 |
|---|---|
| Weight | 99.87 lb |
| Color / Finish | White |
Shipping & Delivery
Installation video
Published by MRCOOL. Watch the full walkthrough before you start, and follow the installation manual for this model — the video is a guide, not a substitute for it.
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
You May Also Like
Make sure it is the right size, and that you have the rest of it
Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.
Still deciding on the right equipment?
Our HVAC specialists can help you confirm sizing and compatibility before you buy.