MRCOOL DIY OuttaSight Series 18K BTU Ceiling Cassette | 21.8 SEER | 12.5 EER | Multi Zone Compatible
$1,880.03 Original price was: $1,880.03.$1,128.02Current price is: $1,128.02.

The MRCOOL® DIY® Series OuttaSight™ 18k BTU Ceiling Cassette provides efficient heating and cooling while remaining out of sight and discreet, making it a perfect fit for any space. This easy to install and easy to maintain unit is offered in both single-zone and multi-zone options and can provide coverage for large and small spaces.
The OuttaSight™ cassette features an easy, low profile installation and can be recessed between all types of joists on 16 inch center including pre-manufactured I-joists. This makes it a perfect option for both new construction or retrofits. It doesn’t have strict installation requirements like other ceiling cassettes, so you’re able to install it in the location that suits you best, without using ductwork or wall space.
The OuttaSight™ works with the MrCool® DIY® Quick Connect® line set and the No-Vac® Coupler to increase the length of the line set. Not only does the unit offer quiet operation and multiple operating modes, but it also features the Elevation function that lowers the filter panel for easy air filter maintenance. Purchases of the MrCool® DIY® Series OuttaSight™ 18k BTU Ceiling Cassette are protected by a limited lifetime warranty in addition to a 7-year compressor warranty and 5-year parts warranty.
MRCOOL offers 3 models of DIY OuttaSight Ceiling Cassette:
- MRCOOL DIY OuttaSight Series 9K BTU Ceiling Cassette | 20.75 SEER | 12.5 EER
- MRCOOL DIY OuttaSight Series 12K BTU Ceiling Cassette | 20.75 SEER | 12.5 EER
- MRCOOL DIY OuttaSight Series 18K BTU Ceiling Cassette | 21.8 SEER | 12.5 EER
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CA Residents: See Prop 65 Warning
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Features
Discreet heating & cooling for any space
The MRCOOL® DIY® Series OuttaSight™ Ceiling Cassette provides efficient heating and cooling while remaining discreet and out of sight, making it a perfect fit for any space. This unit, which is easy to install and maintain, is available in both single-zone and multi-zone options and can provide coverage for large and small spaces.



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Low profile installation
You won’t even know it’s there. The MRCOOL® DIY® Series OuttaSightâ„¢ offers a low-profile heating and cooling option to discreetly fit any space.

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New construction, retrofit, and anything between
Designed to work with current and future joist standards, it can be recessed between all types of joists on 16 inch center – including pre-manufactured I-joists.



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Single & multi-zone possibilities
This unit works with the MRCOOL® DIY® 4th generation series. The 18k ceiling cassette can also be installed as a single zone configuration.

Installed as a single zone configuration
The 18k BTU MRCOOL® DIY® OuttaSight™ Ceiling Cassette can be installed in a single-zone system. This unit can cover around 750 square feet in the precise temperature you want.
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Add it to your multi-zone configuration
Our multi-zone MRCOOL® DIY® systems allow you to install both wall-mounted air handlers and the OuttaSight® Ceiling Cassette within the same system so you can mix and match your comfort to fit your needs.
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Compatible with smart technology
The OuttaSightâ„¢ Ceiling Cassette not only offers total comfort, it offers totally customizable control. Set specific schedules, decide on your ideal temperature parameters, manage your settings and more from your phone with the Smart HVAC app.

Enhanced control from anywhere
Control your MRCOOL® DIY® OuttaSight™ wherever you are with your Apple or Android smart device and an internet connection.
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Best warranty in the business
When paired with a 4th Generation MRCOOL® DIY® Ductless Mini-Split condenser, the DIY® Outtasight™ Ceiling Cassette have an optional LIMITED LIFETIME compressor warranty*, a 7-year compressor replacement* warranty, and a standard 5-year parts warranty for the original registered owner. See rules and restrictions here.

Weight & Dimensions
| Net Weight (lbs) | 44.97 | ||
| Gross Weight (lbs) | 89 | ||
| Dimensions | |||
| Â | Height | Width | Depth |
| Net | 8.98″ | 50.31″ | 13.19″ |
| Gross | 22.64″ | 57.60″ | 22.48″ |
Specifications
| SEER | Up to 21.8 |
| EER | Up to 12.5 |
| HSPF-4 | 11.6 |
| HSPF-5 | 9.7 |
| Cooling Capacity (BTU) | 17000 |
| Heating Capacity (BTU) | 19000 |
| Voltage (V) | 208-230 |
| Phase | 1 |
| Cycle | 60 |
| Max Fuse Breaker (A) | 15 |
| Min Circuit Ampacity (A) | 3 |
| Rated Load | 1.5 |
| Decibel Rating (dBA) | 40/28 |
| Decibel Rating Low (dBA) | 21 |
| Decibel Rating High (dBA) | 44 |
| Min Ambient Cool (°F) | 60 ~ 90 |
| Min Ambient Heat (°F) | 32 ~ 86 |
| Liquid Line Size | 1/4 |
| Suction Line Size | 1/2 |
| Blower Motor HP | 598/510/352 |
| Blower Motor Speeds | 4 |
| Blower Motor RPM | 1344/1184/1024 |
| Filter Type | Reusable |
| Fan Only Option | Yes |
| Quiet Mode | Yes |
| Sleep Mode | Yes |
| Auto Cool | Yes |
| WiFi Compatibility | Yes |
| App Compatibility | Yes |
| Works with iOS | Yes |
| Works with Android | Yes |
| Remote Control Included | Yes |
| Registered Warranty | Limited Lifetime Compressor |
| Base Warranty | 5-year Parts/7-year Compressor |
| Base Parts Warranty | 5-year Parts |
| Registered Compressor Warranty | Limited Lifetime Compressor |
| Base Compressor Warranty | 7-year Compressor |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Aerosol | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| Restricted States | GU; PR; VI |
| Net Depth (in) | 13.19 |
| Net Height (in) | 8.98 |
| Net Width (in) | 50.31 |
| Net Weight (lbs) | 44.97 |
| Gross Depth (in) | 22.48 |
| Gross Height (in) | 22.64 |
| Gross Width (in) | 57.6 |
| Gross Weight (lbs) | 89 |
FAQ
What is the MRCOOL® DIY® OuttaSight™ Ceiling Cassette?
The MRCOOL® DIY® OuttaSight™ Ceiling Cassette is a sleek, discreet, design-focused air handler option within the DIY® Ductless Mini-Split series. Designed for multi-zone systems but compatible with the single-zone 18k BTU DIY® Ductless Mini-Split, the OuttaSight™ comes in three different sizes: 9k BTUs, 12k BTUs, and 18k BTUs.
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Do you have to connect all of your air handlers at the same time when you’re installing a Multi-Zone DIY® system?
You do not need to connect all of your air handlers to a Multi-Zone DIY® Ductless Mini-Split system, but you do have to meet a certain BTU capacity depending on which condenser model you have. You must install at least 3/4ths of the BTU capacity of the condenser in air handlers for the system to work properly. This means that if you have a 36k BTU Multi-Zone DIY® Ductless Mini-Split condenser and four 9k BTU air handlers, you’ll need to install at least three of them at the same time in order for the system to properly function.
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Are the indoor and outdoor components included?
The MRCOOL® DIY® OuttaSightâ„¢ is a new air handler option to give you the choice between a ceiling cassette and a typical wall-mounted air handler. When you purchase a Multi-Zone DIY® system, you’ll need to be sure that you select the OuttaSightâ„¢ Ceiling Cassette as an option.
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Does the system include the communication wire to connect the indoor to the outdoor unit?
The OuttaSightâ„¢ will come with a DIYPROâ„¢ cable, which securely connects the air handler to the condenser. This cable has a special, tough exterior that protects it from damage from weather, animals and pests, and lawn tools and appliances.
What’s Included?
| INCLUDED | |
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1x MRCOOL DIY OuttaSight Series 12K BTU Ceiling Cassette
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MRCOOL No-Vac Quick-Connect Lineset (25 Ft.)
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WiFi Dongle
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MRCOOL Remote
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Warranty
- Registered Warranty: Limited Lifetime Compressor
- Base Warranty: 5-year Parts / 7-year Compressor
- Base Parts Warranty: 5-year Parts
- Registered Compressor Warranty: Limited Lifetime Compressor
- Base Compressor Warranty: 7-year Compressor
Downloads
- MRCOOL DIY OuttaSight Ceiling Cassette Brochure – Download
- MRCOOL DIY OuttaSight Ceiling Cassette Installation Manual – Download
- MRCOOL Remote Control User Manual –Â Download
- MRCOOLÂ Trouble Shooting Guide – Download
- MRCOOL 4th Gen DIY Series Warranty Document – Download
- MRCOOL Multi Zone Matchup Guide – Download
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