MRCOOL® E Star DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 230V/60Hz
Free Shipping
Warranty Protection
Trusted Returns Policy
MODEL: DIY-36-HP-WMAH-230C25
Powerful Comfort for Large Spaces—Up to 1,500 sq. ft.
The MRCOOL® DIY 4th Gen 36K BTU Wall Mounted Air Handler is the most powerful indoor unit in the MRCOOL® DIY lineup. Perfect for large living rooms, open-plan spaces, or finished basements, this ductless mini-split air handler delivers powerful heating and cooling with a high 36,000 BTU capacity and up to 18 SEER efficiency when paired with a compatible MRCOOL® condenser.
Built for the true DIYer, installation is fast and tool-friendly thanks to MRCOOL’s patented Pre-Charged Quick Connect® Line Set. No need for vacuum pumps or licensed HVAC techs—just secure, connect, and enjoy. Control your climate from anywhere with the SmartHVAC® app, or use voice commands via Amazon Alexa or Google Assistant.
Why You’ll Love It
✅ Covers Up to 1,500 sq. ft. — Perfect for large rooms or open living spaces
✅ Quick DIY Installation — Pre-charged line set connects easily without vacuuming
✅ Flexible Climate Control — Operates in COOL, HEAT, AUTO, DRY, and SLEEP modes
✅ Smart Control — Use your smartphone or smart speaker for voice control
✅ Whisper-Quiet — Operates as low as 34 dBA for undisturbed comfort
✅ Trusted Warranty — 5-year parts & 7-year compressor warranty standard; upgrade to limited lifetime with registration
Specifications
Specifications at a Glance
| Attribute | Details |
|---|---|
| Cooling Capacity (BTU) | 36,000 |
| Heating Capacity (BTU) | 36,000 |
| Max Coverage Area | Up to 1,500 sq. ft. |
| Voltage | 208–230V |
| SEER | Up to 18 |
| Mount Type | Wall |
| Refrigerant Type | R-410A |
| Decibel Rating (dBA) | 34 (Low) – 52 (High) |
| Blower Motor RPM | 1200 / 950 / 750 |
| Liquid Line Size | 3/8” |
| Suction Line Size | 5/8” |
| Max Line Set Length | 213.25 ft |
| Wi-Fi Enabled | Yes |
| App Compatibility | iOS & Android |
| Remote Control Included | Yes |
| ENERGY STAR® Certified | No |
| Warranty | Lifetime Compressor (with registration), 7-Year Compressor, 5-Year Parts |
| Net Dimensions (WxHxD) | 49.57” x 14.25” x 11.10” |
| Net Weight | 47.84 lbs |
What’s Included:
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MRCOOL® 36K BTU 4th Gen Wall Mounted Air Handler (208-230V)
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Remote Control
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Mounting Plate
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SmartHVAC® Module
- DIY Pro™ Safety Cable
- MRCOOL® Warranty Documents
What You Need for a Complete System
This unit requires pairing with:
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Compatible MRCOOL® DIY® 4th Gen Multi-Zone Condenser
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Pre-Charged Quick Connect® Line Sets (sold separately)
Installation
Installation & Manuals
Shipping & Returns
Shipping Policy
At Cool Heat Direct, we offer free curbside delivery on all MRCOOL product orders via FedEx Ground, FedEx Freight, or trusted carriers depending on order size.
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Deliveries are made to the curbside — please arrange assistance for heavy or large items, as drivers do not carry items indoors or upstairs.
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Tracking details will be sent within 3–5 business days after placing your order.
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Freight shipments are scheduled directly by the carrier using the contact information you provide at checkout.
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Please inspect your shipment upon delivery and report any visible damage on the delivery receipt.
Return Policy
We want you to love your purchase from Cool Heat Direct. If you need to return an item:
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Contact us within 30 days of delivery.
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Items must be unused, uninstalled, and in their original packaging.
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A 35% restocking fee applies to all approved returns.
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Accessories such as line sets, wall mounts, and couplers are non-returnable.
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Return shipping is the customer’s responsibility unless the item is damaged or defective on arrival.
To start a return, please email us at support@coolheatdirect.com with your order number and reason for return.
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