What's in the box
- MRCOOL® EasyPro™ 18K BTU 5th Gen Mini-Split Air Handler
- Wireless Remote Control
- DIYPro™ Communication Cable
- Installation Accessories
- MRCOOL® Warranty Documentation
- Free U.S. curbside delivery within the Lower 48 States on qualifying orders
- Orders ship from U.S. warehouses
- Delivery times may vary by location and carrier availability
- Returns accepted within 30 days for unused and uninstalled products
- Approved returns may be subject to a restocking fee
Manuals & documents
MODEL: EZPRO-18-HP-WMAH-230D-O
Powerful DIY Climate Control for Rooms Up to 800 sq. ft.
The MRCOOL® EasyPro™ 18k BTU 5th Generation Mini-Split Air Handler is your go-to solution for affordable, high-capacity comfort in larger rooms, home offices, or server rooms up to 800 sq. ft. Designed with simplicity and efficiency in mind, this unit offers robust performance and true DIY installation—no professional HVAC tools or special skills required.
Equipped with Wi-Fi functionality, you can adjust temperatures anytime, anywhere using the MRCOOL SmartHVAC® App or your voice via Alexa or Google Assistant. The integrated Follow Me® remote ensures the unit maintains your perfect temperature wherever you are in the room.
This air handler features whisper-quiet operation as low as 18.5 dBA, Active Clean Technology for fresher air, and Low Ambient Cooling down to 5°F—making it a smart year-round solution for both comfort and precision environments like greenhouses or IT rooms.
Why You’ll Love It
✅ Great for Larger Rooms — Efficiently heats and cools areas up to 800 sq. ft.
✅ True DIY Installation — No HVAC tools or technician needed; pair with Quick Connect® line set
✅ Smart & Connected — Wi-Fi enabled, compatible with Alexa, Google Assistant, and SmartHVAC® App
✅ Whisper Quiet Comfort — As low as 18.5 dBA for peaceful, undisturbed living or working
✅ Follow Me® Feature — Maintains consistent comfort based on the remote’s real-time location
✅ Active Clean Technology — Keeps internal coils cleaner for fresher air and low maintenance
✅ Gold Fin® Protection — Built to resist corrosion in coastal or humid climates
✅ Auto Restart & Sleep Mode — Adds convenience and overnight energy savings
✅ Certified Quality — AHRI Certified, NEEP ccASHP Listed, CEE Tier 1 – North
✅ Strong Warranty Support — Lifetime Limited (with registration), 2-Year Compressor, 1-Year Parts
What You Need for a Complete System
To enjoy full functionality, pair this air handler with:
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MRCOOL® EasyPro™ 5th Gen Single-Zone Condenser (230V Compatible)
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MRCOOL® Quick Connect® Line Set (pre-charged with R-454B refrigerant)
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MRCOOL® Wall Mount Bracket (optional)
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Additional Accessories: Coupler kits or extended line sets (if needed)
⚠️ Note: This unit is designed exclusively for use with EasyPro™ 5th Gen components.
Prefer an All-in-One Solution?
Skip the guesswork and grab one of our EasyPro System Bundles — includes everything you need in one convenient package.
| Voltage | 208/230V / 1 Phase / 60 Hz |
| Mount Type | Wall-Mounted |
| Max Coverage Area | Up to 800 sq. ft. |
| Cooling Capacity | 17,000 BTU |
| Heating Capacity | 18,000 BTU |
| Decibel Rating | 18.5 dBA (Low), 46.5 dBA (High) |
| Oscillation | Yes |
| Filter Type | Reusable |
| Smart Wi-Fi Control | Yes (iOS & Android) |
| Remote Included | Yes |
| App & Voice Compatible | Alexa, Google Assistant |
| Warranty | Lifetime Limited*, 2-Year Compressor, 1-Year Parts |
| Certifications | AHRI, UL, ETL, CSA |
| Unit Dimensions | 38.23" W x 12.64" H x 8.98" D |
| Net Weight | 30.64 lbs |
| Proposition 65 Warning | Yes |
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
Do I need an HVAC technician to install this?
No. MRCOOL® DIY systems are designed for homeowner installation. The pre-charged Quick Connect® line set means there's no refrigerant handling, no vacuum pump, and no special tools or license required.
How long does installation take?
Most single-zone systems go in within a few hours: mount the indoor air handler, set the outdoor condenser, connect the pre-charged line set, and power it on.
Do I need an electrician?
The system needs a dedicated circuit. Most homeowners have a licensed electrician add the breaker and disconnect — everything else you can do yourself.
Sizing & compatibility
What BTU size do I need?
As a rule of thumb: up to 400 sq ft → 9–12K BTU, 400–600 sq ft → 12–18K, 600–1,000 sq ft → 18–24K. Use the room-size guide above and factor in insulation, ceiling height and sun exposure.
Will it heat in winter?
Yes — these are heat pumps, so they heat and cool. Many MRCOOL® systems keep heating in sub-freezing temperatures; check each model's spec sheet for its low-temperature heating range.
115V or 230V — which do I need?
9K–12K units are usually 115V (standard outlet circuit); 18K and larger are typically 230V. The voltage is shown in the product options and specifications.
Warranty & support
What warranty is included?
MRCOOL® systems carry manufacturer warranty coverage — typically 5–10 years on major components when you register your system after installation.
How do I get help choosing or installing?
Email support@coolheatdirect.com — our U.S. team replies within one business day with sizing, voltage and compatibility help.
Shipping & returns
How fast does it ship?
Most products ship in 3–5 business days with free curbside delivery in the continental U.S. The freight carrier calls to schedule your delivery.
Can I return it?
Returns are accepted within 30 days on new, unopened items in original packaging. A restocking fee may apply to HVAC equipment — we always confirm before issuing a return authorization.

