MRCOOL® DIY® 12K BTU 4th Gen Multi Zone OuttaSight® Ceiling Cassette with 25ft DIYPro Cable (230V/60Hz)
MODEL: DIYCASSETTE12HP-230C25
Product Description
Effortless, OuttaSight® Comfort for Spaces up to 600 sq. ft.
Deliver discreet, whisper-quiet, reliable heating and cooling without sacrificing valuable wall or floor space. The MRCOOL® DIY® 12K BTU 4th Gen Multi Zone OuttaSight® Ceiling Cassette provides powerful, energy-efficient climate control from above — perfect for mid-size bedrooms, offices, basements, or open-plan areas.
Designed to fit cleanly between standard 16" ceiling joists, this low-profile cassette pairs with your MRCOOL® DIY® 4th Gen Multi-Zone Condenser and connects quickly using the included 25ft DIYPro™ Cable and Quick Connect® pre-charged line set — no vacuuming, gauges, or technician required.
Why You’ll Love It
✅ Discreet Ceiling Installation — Mounts flush between standard 16″ ceiling joists for a clean, built-in look.
✅ Simple DIY Setup — Pairs seamlessly with your MRCOOL® DIY® 4th Gen Multi-Zone system using Quick Connect® pre-charged lines and the included 25ft DIYPro™ Communication Cable.
✅ Smart-Home Ready — Wi-Fi enabled for control via the SmartHVAC app, Amazon Alexa, or Google Assistant.
✅ Ultra-Quiet Operation — Operates between 26 and 43.5 dBA for peaceful, barely noticeable performance.
✅ Elevating, Washable Filter — Panel drops up to 4.9 ft for hassle-free cleaning and maintenance.
✅ Year-Round Performance — Low ambient cooling to 5°F, heating up to 86°F, perfect for garages, server rooms, or basement suites.
✅ Warranty Protection — Covered by a Limited Lifetime Compressor Warranty (with registration), 7-Year Compressor, and 5-Year Parts Warranty.
What’s Included:
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MRCOOL® DIY® 12K BTU OuttaSight® Ceiling Cassette
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25ft DIYPro™ Communication Cable
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Remote Control
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Installation Accessories
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MRCOOL® Warranty
Specifications at a Glance
| Attribute | Details |
|---|---|
| BTU Capacity | 12,000 BTU |
| Voltage | 208-230V |
| SEER | Up to 21 |
| Coverage Area | 400 – 600 sq. ft. |
| Sound Rating (dBA) | 26 – 43.5 |
| Wi-Fi Compatibility | Yes (SmartHVAC App, Alexa, Google Assistant) |
| Line Set Compatibility | MRCOOL® Quick Connect® |
| Cooling Operating Range | 5°F – 122°F |
| Heating Operating Range | 5°F – 86°F |
| Air Filter | Washable, reusable, elevating panel |
| Warranty | Limited Lifetime Compressor (registered), 7-Year Compressor, 5-Year Parts |
Room Size & BTU Coverage Guide
Choosing the right BTU (British Thermal Unit) output ensures your space stays consistently comfortable all year round. Use this quick reference chart to match your room size with the recommended cooling and heating capacity for your MRCOOL® DIY® OuttaSight® Ceiling Cassette.
| BTU Rating | Ideal Room Size (Approx.) |
|---|---|
| 9,000 | 250 – 400 sq. ft. — ideal for standard bedrooms, home offices, or compact living rooms |
| 12,000 | 400 – 600 sq. ft. — perfect for master bedrooms, mid-size living rooms, or larger offices |
| 18,000 | 600 – 800 sq. ft. — great for open-concept family rooms, workshops, or finished basements |
Important:
Always consider additional factors such as ceiling height, insulation quality, sun exposure, number of windows, climate, and the number of heat-producing appliances in your space when choosing the right system.
Still unsure which size is right?
Our MRCOOL-certified experts are happy to help you choose the perfect system — message us anytime!
Installation & Manuals
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.
👉 Click here for our full Shipping Policy
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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