MIDEA - 1-Way Ceiling Cassette (Heat Pump) | 18,000 BTU - R454B

In stock
SKU: MCAHU-H18B-2A
LogisVert Grant: 1740 $ (Updated: July 17, 2025)
Model Number INT: MCAHU-H18B-2A
Model Number EXT: MO1HS-H18B-2A
AHRI: 215471407
Energy Star: Yes
Energy Star (COLD CLIMATE): Yes / Yes
SEER2: 20.6
EER2: 12.5
HSPF2: 12.2
Cooling Capacity: 18,000 BTU
Heating Capacity: -30 °C
WIFI: Optional
Sound Level (INT): 26 / 44 dB(A)
Sound Level (EXT): 59.0 dB(A)
Piping: 1/4 - 1/2
Voltage (V): 220
Freon: R-454B
Manufacturer's Warranty (Parts - Compressor - Labor): 12-12-0 years
INT dimensions (L x D x H): 50.31 x 13.19 x 8.98 in
EXT Dimensions (W x D x H): 35.04 x 13.46 x 26.50 in

The invisible elegance of comfort: Midea's 1-way ceiling cassette

At AirGreen, we know that comfort should never compromise aesthetics. The MIDEA 1-Way Ceiling Cassette – 18,000 BTU – R454B embodies this philosophy by combining exceptional performance, discreet design and smart technology . Suitable for both high-end residential spaces and modern commercial environments , it represents a highly efficient heating and cooling solution, ideal for projects in Montreal, Laval, Longueuil, the North Shore and the South Shore.


A compact heat pump with advanced technology

Designed for environments where space is at a premium, this 1-way recessed wall cassette distributes a smooth, even airflow throughout the room. Its slim design blends seamlessly into suspended ceilings, while ensuring optimal air distribution thanks to a linear front outlet.

Behind its apparent simplicity lies cutting-edge HVAC technology from the MIDEA28 series, renowned for its robustness and performance in Quebec's cold climates. Thanks to its GA Inverter compressor and the use of the new R-454B refrigerant, it offers superior energy efficiency while reducing its environmental impact.


Key technical features

  • Cooling capacity : 18,000 BTU

  • Heating capacity : 18,000 BTU (down to -30°C)

  • Energy efficiency : SEER2 20.6 / EER2 12.5 / HSPF2 12.2

  • GA Inverter technology for precise temperature control and significant reduction in energy consumption

  • Eco-friendly Freon R-454B , with low global warming potential

  • Energy Star Cold Climate (CVC V6.1) certification – guaranteed performance even in extreme conditions

  • Indoor noise level : as low as 26 dB(A)

  • Integrated two-sided drainage for flexible installation

  • Optional Wi-Fi for smart control via mobile device

  • Manufacturer's warranty : 12 years on parts and compressor


Smart comfort, total control

The Midea 1-way cassette incorporates an intelligent temperature sensor and personalized comfort functions such as:

  • ECO mode : reduces energy consumption by up to 60% over 8 hours.

  • Sleep Mode : Automatically adjusts the temperature at night for optimal rest.

  • Follow Me : The remote control sensor adjusts the temperature based on your actual position in the room.

  • Self-cleaning (iClean) : the system heats up to 56°C to eliminate dust and bacteria, ensuring healthier air.

  • Automatic restart in case of power failure and integrated anti-freeze protection .


Designed for the Quebec climate

With its heating capacity down to -30°C , this Midea unit exceeds expectations for harsh Montreal winters. Its heated chassis and compressor prevent ice buildup and ensure stable performance, even in extreme cold.

AHRI tests confirm a stable COP of 2.0 at -15°C , demonstrating consistent efficiency even when outdoor conditions become extreme.


A discreet and efficient installation by AirGreen

Recently, our team installed this Midea 18,000 BTU cassette in a renovated office in Griffintown . The client was looking for a quiet, efficient and, above all, aesthetically invisible solution.
The unit was integrated into a suspended ceiling with a custom linear grille, providing smooth air diffusion without altering the interior design. Thanks to bilateral drainage and the integrated lift pump , the installation was simple, fast and clean—a typical example of AirGreen's expertise in turnkey HVAC installation in Montreal .


A sustainable investment

Beyond comfort, the Midea 1-way stands out for its exceptional durability . With a 12-year warranty on parts and the compressor , it outperforms most competing products. The use of TU1 copper components and the presence of a fireproof electrical box reinforce the safety and longevity of the unit.


Why choose AirGreen?

At AirGreen, we don't just sell heat pumps— we help every customer create a comfortable, economical, and sustainable environment .
Our RBQ-certified refrigeration technicians master every detail of the Midea range, ensuring installation and maintenance that meet the highest standards of performance and safety.

No advance, no deposit: you pay at the end, once fully satisfied.


In summary

The MIDEA 1-Way 18,000 BTU Ceiling Cassette – R454B is the ideal choice for those looking for a discreet, efficient system perfectly suited to Quebec winters . Its energy efficiency, compact design and smart technologies make it a high-end solution for modern homes and businesses.


Need a free estimate in Montreal, Laval, Longueuil, on the North Shore or the South Shore?
Contact AirGreen today for a 100% free on-site assessment and discover why so many Quebecers trust us for their daily comfort.

📞 514-316-2973
✉️ sales@airgreen.ca

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