MRCOOL 5th Gen DIY 18K BTU Air Handler Applications
- Primary heating and cooling for large master suites, living rooms, and open-concept spaces (Up to 800 sq. ft.).
- High-efficiency climate control for home offices, multi-car garages, or workshops.
- Coastal or high-humidity environments requiring the advanced corrosion resistance of the Gold Fin® condenser coating.
- Modern smart homes needing direct integration with Alexa, Google Assistant, or smartphone apps.
The perfect mid-size solution for homeowners seeking the power of a 1.5-ton system without the thousands of dollars typically required for professional ductwork or commercial HVAC installation.
MRCOOL 5th Gen DIY 18K BTU Air Handler Specifications
| SKU | DIY-18-HP-WMAH-230D25-O |
|---|---|
| UPC | 840255587044 |
| Power Supply | 208/230V / 60 Hz / 1-Phase |
| Capacity | 18,000 BTU (1.5 Ton) |
| Max Coverage Area | Up to 800 sq. ft. |
| Mounting Type | Wall Mount |
| Filter Type | Reusable |
| Noise Level (Low / High) | 19 dBA / 54.5 dBA |
| Lineset Sizing | 1/4" Liquid / 1/2" Suction |
| Net Dimensions (W×H×D) | 42.52" × 13.19" × 8.9" |
| Net Weight | 35.49 lbs |
| Certifications | Energy Star Certified, Intertek, UL Listed, ETL Listed, AHRI Certified |
| Warranty | 5-Year Base Parts / 7-Year Base Compressor |
MRCOOL 5th Gen DIY 18K BTU Air Handler Features & Technology
- True DIY Installation: Engineered for fast, simple setup without requiring a professional electrician or HVAC technician.
- DIYPRO® Cable Included: Streamlines the electrical connection by eliminating conduit, offering superior durability against severe weather and pests.
- Smart Home Integration: The MRCOOL® Smart HVAC Controller® module fully supports Google Assistant, Amazon Alexa, and the iOS/Android SmartHVAC app.
- Follow Me® Technology: The wireless remote acts as a localized thermostat, tracking the ambient temperature directly around you to ensure accurate comfort.
- Dry Mode Functionality: Actively removes excess indoor humidity, vastly improving air quality and overall room comfort.
- Ultra-Quiet Operation: Operates at a whisper-quiet 19 dBA on its lowest setting, ensuring zero disruptions to your sleep or daily life.
Downloads & Documentation
Why Choose the MRCOOL 5th Gen DIY 18K Air Handler
- Empowers homeowners to completely bypass expensive professional HVAC labor on a high-capacity 1.5-ton installation.
- Energy Star certified efficiency provides long-term savings on monthly utility bills compared to traditional window units or older systems.
- Offers unmatched control from anywhere using smart apps and voice commands.
- Protected by an industry-leading 7-year compressor and 5-year parts warranty.
Enjoy uncompromising power, modern smart-home integration, and stress-free installation with the 5th Generation MRCOOL® DIY® 18k BTU Ductless Mini-Split Air Handler—professional comfort made simple.
