HITACHI | Mini Ceiling Cassette - Heat Pump | 18000 BTU

In stock
SKU: RAI-GJ18QHAA
LogisVert Grant: 1920 $ (Updated: July 17, 2025)
Model Number INT: RAI-GJ18QHAA
Model Number EXT: RAM-G24N3HAA
AHRI: 216097707
Energy Star: Yes
Energy Star (COLD CLIMATE): Yes / Yes
SEER2: 22.0
EER2: 12.5
HSPF2: 9.5
Cooling Capacity: 18,000 BTU
Heating Capacity: -20 °C
WIFI: Optional
Sound Level (INT): 29 / 44 dB(A)
Sound Level (EXT): 54.0 dB(A)
Piping: 1/4 - 3/8
Voltage (V): 220
Freon: R-32
Manufacturer's Warranty (Parts - Compressor - Labor): 10-10-0 years
INT dimensions (L x D x H): 22 x 22 x 11 in
EXT Dimensions (W x D x H): 33.5 x 11.7 x 31.5 in

The perfect combination of comfort, discretion and performance from Hitachi — expertly installed by AirGreen in Montreal

At AirGreen , we believe comfort should never be a compromise. It should be invisible, consistent, and harmonious —a natural sense of balance in your living space. That's exactly what the Hitachi 18,000 BTU Mini Ceiling Cassette Heat Pump offers: cutting-edge Japanese technology integrated into a compact, sleek design, perfectly suited to the residential and commercial needs of Greater Montreal, Laval, Longueuil, the North Shore, and the South Shore .

This unit, designed to fit discreetly into 22 x 22 inch modular ceilings, combines energy efficiency, 360° air diffusion, exceptional silence and proven reliability . It is ideal for those looking for optimal comfort without compromising the aesthetics of their interior. Whether you are setting up an office in Laval, a condo in downtown Montreal or a restaurant in Boucherville, the Hitachi Mini Cassette adapts perfectly to your environment.


A design thought out for the harmony of your space

One of the greatest assets of the Hitachi Mini Cassette 18000 BTU (RAI-GJ18QHAA) is its ability to distribute air evenly to every corner of the room . Thanks to its four-way airflow , the temperature is balanced from floor to ceiling, without cold spots or unpleasant direct blasts.

Compact, elegant and universal

Its compact size (22 x 22 in) allows it to fit into most suspended or architectural ceilings without requiring structural modifications. Its discreet design, both understated and modern, visually disappears while actively contributing to ambient well-being.

Absolute silence

Hitachi engineers have achieved a remarkable feat: operating such a powerful unit at just 29 dB(A) . This noise level is comparable to rustling leaves, making this heat pump ideal for bedrooms, professional offices, or collaborative workspaces where peace and quiet are paramount.

A personalized comfort experience

Each indoor unit can be controlled individually , allowing each occupant to adjust the temperature, fan speed or operating mode according to their preferences. This is the perfect solution for multi-zone properties, where thermal requirements vary from room to room.


A heat pump designed for the Quebec climate

Our harsh winters require robust and efficient HVAC systems. The Hitachi Mini Cassette 18000 BTU , integrated into the airHome Multi system, was specially designed to withstand Quebec's extreme conditions.

It maintains continuous heating down to -20°C , ensuring stable comfort even in the bitterest cold. With a SEER2 of 22.0 and an HSPF2 of 9.5 , it offers exceptional energy efficiency while significantly reducing electricity consumption.

This efficiency is made possible by Inverter technology, which automatically adjusts the compressor speed according to thermal demand. The result: fewer on/off cycles, reduced wear, and increased system longevity .

Everything is powered by R-32 refrigerant , known for its low environmental impact and superior thermal efficiency. In addition, this heat pump is Energy Star Cold Climate certified , making it eligible for the $1,920 LogisVert grant , excellent news for homeowners concerned about efficiency and savings.


Clean, healthy and pleasant air to breathe

Indoor air quality has become a major issue, and Hitachi has understood this for a long time. The Mini Cassette 18000 BTU integrates a complete filtration system combining ViroSense S technology , FrostWash™ , and Mold Guard .

ViroSense S: ​​active protection against impurities

This advanced filter eliminates 99% of viruses and bacteria and completely blocks the formation of mold . It also captures fine particles, allergens and pollutants to provide a healthy atmosphere, essential for families, offices and businesses where air quality directly affects well-being.

FrostWash™: automatic cleaning by freezing

This exclusive technology cleans the heat exchanger by coating it with a thin layer of ice, which traps dust and dirt before melting. This “freeze and melt” process allows for efficient and environmentally friendly self-cleaning , keeping the unit clean inside and ensuring consistent performance over the years.

Mold Guard: active odor prevention

After each cooling cycle, an automatic program dries the internal components for approximately one hour, preventing moisture from accumulating and causing odors or mold.

Result: purified, fresh and pleasant air, day after day, without complex maintenance.


Smart connectivity and total control

The Hitachi Mini Cassette fits seamlessly into modern life thanks to its compatibility with the airCloud Go app . With this connected platform, you can control your HVAC system remotely : schedule schedules, adjust the temperature, monitor energy consumption, and even diagnose alerts in real time—all from your smartphone.

A smart motion sensor

The built-in sensor activates Smart Eco mode when no presence is detected. The device automatically reduces its activity to save energy, then resumes operation as soon as someone enters the room.

Enhanced safety with the R-32 leak sensor

In the event of a refrigerant leak, an integrated sensor immediately detects the anomaly and emits a light and sound alert , ensuring the safety of the occupants and the protection of the device.


Uncompromising Hitachi reliability

Hitachi is synonymous with durability and technical excellence . Each unit, indoors and outdoors, is individually tested to ensure optimal performance right from the factory.

The 18000 BTU Mini Cassette features a reinforced outer casing , an anti-corrosion coating , protective blue fins and a flame-retardant casing to prevent any risk related to electrical variations.
The compressor is protected by a 3-minute delay circuit to prevent surges during restarts, ensuring exceptional reliability and extended service life.

This design rigor makes the Hitachi a benchmark for owners looking for a reliable, robust and durable device , designed for Quebec conditions.


Professional installation and service by AirGreen

Installing a ceiling heat pump requires specific expertise. At AirGreen, our RBQ-certified refrigeration technicians handle each project with precision and attention to detail, from assessment to commissioning.

Our commitments:

  • Free, no-obligation on-site assessment

  • Transparent and detailed pricing before work begins — no surprises, ever

  • No deposit required : you only pay once you are 100% satisfied

  • Fast and efficient after-sales service with priority given to our established customers

Our teams operate daily in Montreal, Laval, Longueuil, Boucherville, Terrebonne, Blainville and throughout the North and South Shores . Each installation is carried out in compliance with the strictest standards in terms of energy performance and safety.


An exceptional guarantee for total peace of mind

Hitachi protects your investment with a 10-year warranty on the compressor and parts . This comprehensive coverage, combined with Japanese manufacturing quality, ensures unparalleled peace of mind.

AirGreen also ensures your peace of mind: we provide regular monitoring of your equipment , preventive maintenance and rapid repairs if necessary. Our goal is for each customer to enjoy their comfort without interruption, year after year.


Why choose the Hitachi Mini Ceiling Cassette 18000 BTU?

Because it is simply one of the best compact wall-mounted heat pumps available on the Quebec market . Here's why it's a must-have choice:

  • Superior power and energy efficiency (SEER2 22.0 / HSPF2 9.5)

  • Remarkable silence , ideal for all environments

  • 4-way air diffusion for even comfort

  • ViroSense S filtration and FrostWash™ automatic cleaning

  • Reliable heating down to –20°C

  • Smart inverter technology for sustainable savings

  • Advanced airCloud Go connectivity

  • 10-year warranty on parts and compressor

  • AirGreen professional installation , recognized for its precision and exemplary customer service

This heat pump represents the perfect balance between innovation, elegance and performance , while meeting the climatic and aesthetic requirements of the Quebec market.


AirGreen: Your Trusted HVAC Partner in Quebec

At AirGreen Heat Pumps, Air Conditioning & Heating , our mission is simple: to offer each customer an experience of absolute comfort, adapted to their space and lifestyle.
We don't just install systems—we create healthy, sustainable, and energy-efficient environments.

Thanks to our recognized expertise, we are proud to be the trusted HVAC reference in the greater Montreal area . Each project is a promise of quality, transparency and performance.


Contact AirGreen today for a free estimate and discover how the Hitachi 18000 BTU Mini Ceiling Cassette can transform your space into a haven of comfort and serenity.

📞 514-316-2973
📧 sales@airgreen.ca
📍 Montreal – Laval – Boucherville – Longueuil – North Shore – South Shore

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