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MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette

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Discreet 12K Ceiling Comfort for Clean, Open Living Spaces

The MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU One-Way Ceiling Cassette delivers efficient heating and cooling for spaces up to 550 sq. ft. without taking up wall or floor space. Designed to install flush between standard 16" ceiling joists, it connects to MRCOOL DIY multi-zone systems using pre-charged Quick Connect® line sets for a straightforward, tool-free install.

MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette

Important Notes

  • Designed for use with MRCOOL® DIY® multi-zone condensers only
  • Pre-charged with R-454B refrigerant

Low-profile and easy to hide

Low-profile installation that disappears into your space while delivering dependable heating and cooling.

MRCOOL DIY® OuttaSight® Ceiling Cassette - Lifestyle Photo

Key Features and Benefits

  • 12,000 BTU Heating & Cooling Capacity -Designed for rooms up to 550 sq. ft., ideal for bedrooms, offices, studios, and open living areas.
  • Flush Ceiling Installation - One-way ceiling cassette mounts cleanly between 16" joists, including engineered I-joists, preserving wall space and room layout.
  • DIY-Friendly System Design - Pairs with MRCOOL® DIY® Quick Connect® line sets that are pre-charged with R-454B, eliminating vacuuming and specialized HVAC tools.
  • Quiet, Consistent Airflow - Low operating sound levels make it suitable for sleeping areas and workspaces.
  • Smart Control Options - Operate via included wireless remote, SmartHVAC app, or voice control with Amazon Alexa and Google Assistant.
  • Reusable Filtration with Easy Access - Built-in Elevation function lowers the panel for quick filter cleaning and maintenance.
  • Long-Term Warranty Coverage - Includes 5-year parts, 7-year compressor, and limited lifetime compressor warranty with registration.

System Specifications


  • Cooling Capacity (BTU): 12,000
  • Heating Capacity (BTU): 12,000
  • Voltage Requirements: 208–230
  • Phase: 1
  • Cycle: 60
  • Max Fuse Breaker (A): 15
  • Min Circuit Ampacity (A): 3
  • Rated Load: 1
  • Decibel Rating (dBA): 37
  • Decibel Rating (Low) (dBA): 24
  • Decibel Rating (High) (dBA): 41
  • CFM: 353 / 312 / 283 / 247 / 177
  • Blower Motor RPM: 1075 / 982 / 797
  • 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): 45
  • Gross Depth (in): 22.48
  • Gross Height (in): 22.64
  • Gross Width (in): 57.60
  • Gross Weight (lbs): 88


MRCOOL DIY® OuttaSight® Ceiling Cassette - Room setup

Frequently Asked Questions

Does this ceiling cassette work on its own?

No. This is an indoor air handler and must be connected to a compatible MRCOOL DIY 5th Gen multi-zone condenser.

Is professional HVAC installation required?

No. When paired with MRCOOL DIY Quick Connect® line sets, installation does not require vacuuming or HVAC certification.

What size room is the 12K OuttaSight cassette best for?

It is designed for spaces up to 550 square feet, depending on insulation and climate conditions.

Can it be controlled remotely or by phone?

Yes. It includes a wireless remote and supports app and voice control through Alexa and Google Assistant.

Best Price Guarantee

You'll get the best price available at Wild Oak Trail! We'll match anyone who has it lower! 

We love to chat! Give us a call and we'll see what we can do to get you the best deal!

Conditions of our 100% Price Match Guarantee:

  • Contact us to discuss the Price Match so we can look up the competitors price

  • Buy one, get one free offers and Rebates are not eligible

  • The item must be in stock on the competitors website

  • The competitor must be an online store, not a retail location

  • The website can't be a discounter or auction website ( such as eBay, overstock, etc.)

  • The company must be an Authorized Retailer of the product in question

  • The Price Match Guarantee is based on the final price of the product including shipping and taxes

Why Buy From Wild Oak Trail? 

We’re a family-run business. My Wife Hailey and I run this business with our small staff of 3 awesome people. When you shop with Wild Oak Trail, you're supporting real people, not a big corporation.

We truly care. We’re here before, during, and after your purchase. Good products and great service—that’s how we earn your trust. We see and celebrate EVERY sale that comes in!

We choose quality. If we wouldn’t use it ourselves, we won’t offer it. Our goal is to make you happy enough to tell your friends.

Thanks for supporting our family and being part of the Wild Oak Trail community!

Description

Discreet 12K Ceiling Comfort for Clean, Open Living Spaces

The MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU One-Way Ceiling Cassette delivers efficient heating and cooling for spaces up to 550 sq. ft. without taking up wall or floor space. Designed to install flush between standard 16" ceiling joists, it connects to MRCOOL DIY multi-zone systems using pre-charged Quick Connect® line sets for a straightforward, tool-free install.

MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette

Important Notes

  • Designed for use with MRCOOL® DIY® multi-zone condensers only
  • Pre-charged with R-454B refrigerant

Low-profile and easy to hide

Low-profile installation that disappears into your space while delivering dependable heating and cooling.

MRCOOL DIY® OuttaSight® Ceiling Cassette - Lifestyle Photo

Key Features and Benefits

  • 12,000 BTU Heating & Cooling Capacity - Designed for rooms up to 550 sq. ft., ideal for bedrooms, offices, studios, and open living areas.
  • Flush Ceiling Installation - One-way ceiling cassette mounts cleanly between 16" joists, including engineered I-joists, preserving wall space and room layout.
  • DIY-Friendly System Design - Pairs with MRCOOL® DIY® Quick Connect® line sets that are pre-charged with R-454B, eliminating vacuuming and specialized HVAC tools.
  • Quiet, Consistent Airflow - Low operating sound levels make it suitable for sleeping areas and workspaces.
  • Smart Control Options - Operate via included wireless remote, SmartHVAC app, or voice control with Amazon Alexa and Google Assistant.
  • Reusable Filtration with Easy Access - Built-in Elevation function lowers the panel for quick filter cleaning and maintenance.
  • Long-Term Warranty Coverage - Includes 5-year parts, 7-year compressor, and limited lifetime compressor warranty with registration.

System Specifications


  • Cooling Capacity (BTU): 12,000
  • Heating Capacity (BTU): 12,000
  • Voltage Requirements: 208–230
  • Phase: 1
  • Cycle: 60
  • Max Fuse Breaker (A): 15
  • Min Circuit Ampacity (A): 3
  • Rated Load: 1
  • Decibel Rating (dBA): 37
  • Decibel Rating (Low) (dBA): 24
  • Decibel Rating (High) (dBA): 41
  • CFM: 353 / 312 / 283 / 247 / 177
  • Blower Motor RPM: 1075 / 982 / 797
  • 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): 45
  • Gross Depth (in): 22.48
  • Gross Height (in): 22.64
  • Gross Width (in): 57.60
  • Gross Weight (lbs): 88


MRCOOL DIY® OuttaSight® Ceiling Cassette - Room setup

Frequently Asked Questions

Does this ceiling cassette work on its own?

No. This is an indoor air handler and must be connected to a compatible MRCOOL DIY 5th Gen multi-zone condenser.

Is professional HVAC installation required?

No. When paired with MRCOOL DIY Quick Connect® line sets, installation does not require vacuuming or HVAC certification.

What size room is the 12K OuttaSight cassette best for?

It is designed for spaces up to 550 square feet, depending on insulation and climate conditions.

Can it be controlled remotely or by phone?

Yes. It includes a wireless remote and supports app and voice control through Alexa and Google Assistant.

Best Price Guarantee!

Best Price Guarantee

You'll get the best price available at Wild Oak Trail! We'll match anyone who has it lower! 

We love to chat! Give us a call and we'll see what we can do to get you the best deal!

Conditions of our 100% Price Match Guarantee:

  • Contact us to discuss the Price Match so we can look up the competitors price

  • Buy one, get one free offers and Rebates are not eligible

  • The item must be in stock on the competitors website

  • The competitor must be an online store, not a retail location

  • The website can't be a discounter or auction website ( such as eBay, overstock, etc.)

  • The company must be an Authorized Retailer of the product in question

  • The Price Match Guarantee is based on the final price of the product including shipping and taxes

Why Buy From Us

Why Buy From Wild Oak Trail? 

We’re a family-run business. My Wife Hailey and I run this business with our small staff of 3 awesome people. When you shop with Wild Oak Trail, you're supporting real people, not a big corporation.

We truly care. We’re here before, during, and after your purchase. Good products and great service—that’s how we earn your trust. We see and celebrate EVERY sale that comes in!

We choose quality. If we wouldn’t use it ourselves, we won’t offer it. Our goal is to make you happy enough to tell your friends.

Thanks for supporting our family and being part of the Wild Oak Trail community!