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MRCOOL® DIY® Series 5th gen Outtasight® 9K BTU 230V One-Way Ceiling Cassette

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Low-Profile 9,000 BTU Ceiling Comfort with True DIY Installation

The MRCOOL® DIY® Series 5th Gen OuttaSight® 9K One-Way Ceiling Cassette delivers efficient heating and cooling for spaces up to 400 sq. ft. while staying completely out of sight. Designed to fit between 16-inch ceiling joists, this cassette preserves wall space and installs easily using pre-charged Quick Connect® line sets, eliminating the need for vacuuming, special tools, or HVAC certification.

Factory-charged with R-454B refrigerant, this unit meets current EPA standards and pairs seamlessly with MRCOOL® DIY® 5th Gen multi-zone condensers. Quiet operation, smart control options, and easy filter access make it a practical choice for bedrooms, offices, and living areas where clean design and reliable comfort matter.

MRCOOL® DIY® Series 5th gen Outtasight® 9K 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

  • 9,000 BTU Heating & Cooling Capacity - Effectively conditions rooms up to 400 sq. ft. without oversizing or wasted energy.
  • One-Way Ceiling Cassette Design - Directs airflow evenly while staying hidden above the ceiling for a clean, modern look.
  • DIY Quick Connect® Compatibility - Pre-charged line sets eliminate vacuuming, refrigerant handling, and special tools.
  • R-454B Refrigerant - Low-GWP refrigerant meets updated EPA requirements and supports efficient operation.
  • Whisper-Quiet Performance - Operates as low as 24 dBA, making it ideal for noise-sensitive spaces.
  • Smart & Voice Control Ready - Works with the SmartHVAC app, Amazon Alexa, and Google Assistant for hands-free comfort.
  • Elevation Panel for Easy Maintenance - Drop-down grille allows fast filter access without removing ceiling panels.
  • Reusable Air Filter - Improves indoor air quality while reducing replacement costs.
  • Designed for Multi-Zone Systems - Pairs seamlessly with MRCOOL® DIY® 5th Gen multi-zone outdoor condensers.
  • Strong Warranty Coverage - Includes a 5-year parts warranty, 7-year compressor warranty, and limited lifetime compressor warranty with registration.

System Specifications


  • Cooling Capacity (BTU): 9,000
  • Heating Capacity (BTU): 9,000
  • Voltage Requirements: 208–230
  • Phase: 1
  • Cycle: 60
  • Max Fuse Breaker (A): 15
  • Min Circuit Ampacity (A): 3
  • Rated Load: 0.8
  • Decibel Rating (dBA): 36
  • Decibel Rating (Low) (dBA): 24
  • Decibel Rating (High) (dBA): 38
  • CFM: 341 / 294 / 259 / 235 / 235
  • Blower Motor RPM: 1104 / 994 / 784
  • 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

What size space can the MRCOOL DIY OuttaSight 9K ceiling cassette handle?

It’s rated for areas up to 400 sq. ft., making it ideal for bedrooms, offices, studios, and small living spaces.

Can this ceiling cassette be installed without professional HVAC tools?

Yes. It connects using MRCOOL DIY® Quick Connect® line sets that are pre-charged with R-454B, eliminating the need for vacuuming or specialized tools.

Is this unit compatible with MRCOOL DIY multi-zone condensers?

Yes. It’s designed specifically for MRCOOL DIY® 5th Gen multi-zone outdoor units.

How quiet is the MRCOOL OuttaSight 9K during operation?

Sound levels operate as low as 24 dBA, making it well-suited for quiet, noise-sensitive rooms.

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

Low-Profile 9,000 BTU Ceiling Comfort with True DIY Installation

The MRCOOL® DIY® Series 5th Gen OuttaSight® 9K One-Way Ceiling Cassette delivers efficient heating and cooling for spaces up to 400 sq. ft. while staying completely out of sight. Designed to fit between 16-inch ceiling joists, this cassette preserves wall space and installs easily using pre-charged Quick Connect® line sets, eliminating the need for vacuuming, special tools, or HVAC certification.

Factory-charged with R-454B refrigerant, this unit meets current EPA standards and pairs seamlessly with MRCOOL® DIY® 5th Gen multi-zone condensers. Quiet operation, smart control options, and easy filter access make it a practical choice for bedrooms, offices, and living areas where clean design and reliable comfort matter.

MRCOOL® DIY® Series 5th gen Outtasight® 9K 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

  • 9,000 BTU Heating & Cooling Capacity - Effectively conditions rooms up to 400 sq. ft. without oversizing or wasted energy.
  • One-Way Ceiling Cassette Design - Directs airflow evenly while staying hidden above the ceiling for a clean, modern look.
  • DIY Quick Connect® Compatibility - Pre-charged line sets eliminate vacuuming, refrigerant handling, and special tools.
  • R-454B Refrigerant - Low-GWP refrigerant meets updated EPA requirements and supports efficient operation.
  • Whisper-Quiet Performance - Operates as low as 24 dBA, making it ideal for noise-sensitive spaces.
  • Smart & Voice Control Ready - Works with the SmartHVAC app, Amazon Alexa, and Google Assistant for hands-free comfort.
  • Elevation Panel for Easy Maintenance - Drop-down grille allows fast filter access without removing ceiling panels.
  • Reusable Air Filter - Improves indoor air quality while reducing replacement costs.
  • Designed for Multi-Zone Systems - Pairs seamlessly with MRCOOL® DIY® 5th Gen multi-zone outdoor condensers.
  • Strong Warranty Coverage - Includes a 5-year parts warranty, 7-year compressor warranty, and limited lifetime compressor warranty with registration.

System Specifications


  • Cooling Capacity (BTU): 9,000
  • Heating Capacity (BTU): 9,000
  • Voltage Requirements: 208–230
  • Phase: 1
  • Cycle: 60
  • Max Fuse Breaker (A): 15
  • Min Circuit Ampacity (A): 3
  • Rated Load: 0.8
  • Decibel Rating (dBA): 36
  • Decibel Rating (Low) (dBA): 24
  • Decibel Rating (High) (dBA): 38
  • CFM: 341 / 294 / 259 / 235 / 235
  • Blower Motor RPM: 1104 / 994 / 784
  • 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

What size space can the MRCOOL DIY OuttaSight 9K ceiling cassette handle?

It’s rated for areas up to 400 sq. ft., making it ideal for bedrooms, offices, studios, and small living spaces.

Can this ceiling cassette be installed without professional HVAC tools?

Yes. It connects using MRCOOL DIY® Quick Connect® line sets that are pre-charged with R-454B, eliminating the need for vacuuming or specialized tools.

Is this unit compatible with MRCOOL DIY multi-zone condensers?

Yes. It’s designed specifically for MRCOOL DIY® 5th Gen multi-zone outdoor units.

How quiet is the MRCOOL OuttaSight 9K during operation?

Sound levels operate as low as 24 dBA, making it well-suited for quiet, noise-sensitive rooms.

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!