CANAIR 4C28 Wall-Mounted Heat Pump | 18,000 BTU - R454B | Montreal, South Shore, North Shore

In stock
SKU: 4C28SCH18H21
Grant (Hydro-Québec): 1992 $
Model Number (Interior): 4C28SEH18H21
Model Number (External): 4C28SCH18H21
AHRI: 215449719
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): Yes / Yes
Heating Capacity: -30 °C
Cooling Capacity: 18,000 BTU
Gas (Freon): R-454B
SEER2: 21.4
HSPF2: 11.0
EER2: 12.5
Interior Dimensions (W x D x H): 40.06 × 9.72 x 12.60
External Dimensions (W x D x H): 35.04 x 13.46 x 26.50

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  • WiFi: Optional
  • Warranty (Compressor - Parts - Labor): 10-10-0
  • Additional Warranty: Possible
  • Piping: 1/4 - 1/2
  • Voltage: 220 V
  • Sound Pressure Level (Outdoor): 59.0 dB(A)
  • Sound Pressure Level (Indoor): 19.5 / 49.5 dB(

Canadian performance serving Quebec comfort

At AirGreen , we know that lasting comfort at home requires a reliable, energy-efficient heat pump designed for our harsh winters. That's exactly what the CANAIR 4C28 – 18,000 BTU offers, a ductless wall-mounted heat pump developed for the Quebec climate , combining power, technology and durability.

A heat pump made for real cold

With a heating capacity down to -30°C , the CANAIR 4C28 exceeds expectations. Its Cold Climate V6.1 system guarantees consistent efficiency even on the coldest nights in Montreal, Laval, or Longueuil. Thanks to its R-454B refrigerant gas , this unit meets the latest environmental standards, reducing greenhouse gas emissions while optimizing energy efficiency.

In numbers, it's impressive:

  • SEER2: 21.4 , for exceptional air conditioning efficiency;

  • HSPF2: 11.0 , ensuring economical and sustainable heating;

  • EER2: 12.5 , guaranteeing constant performance even under full use;

  • Capacity: 18,000 BTU , ideal for most medium-sized residential homes.

Inverter technology: efficiency and intelligent comfort

The CANAIR 4C28's integrated inverter technology continuously adjusts compressor power according to actual demand. Result:

  • A stable temperature , without sudden variations;

  • Energy consumption reduced by up to 30% compared to a conventional system;

  • Ultra-quiet operation , perfect for bedrooms or rest areas.

No more on/off cycles: Inverter technology maintains consistent comfort while minimizing compressor wear, for increased durability—a difference you can feel day after day.

Tailor-made comfort and details that make the difference

The Quebec engineers behind the 4C28 series have integrated a multitude of features designed for everyday use:

  • Turbo mode to quickly reach the desired temperature;

  • Self-Cleaning function that prevents mold growth inside and outside the unit;

  • Silent Mode offers unparalleled quietness (up to 19.5 dB(A) indoors!);

  • Follow Me function , which maintains the exact temperature around the remote control;

  • Automatic restart after power failure;

  • External heating cables prevent ice formation on the base and around the compressor;

  • Optional Wi-Fi control , for smart remote control via your phone.

Every detail reflects the “Made for Quebec” philosophy: reliability, efficiency, simplicity.

Robust construction and precise engineering

The CANAIR 4C28 also stands out for the quality of its materials:

  • TU1 copper coil , recognized for its resistance to corrosion;

  • Integrated multi-function board , limiting unnecessary energy consumption;

  • Automatic detection of A2L refrigerant , ensuring safety and longevity;

  • Compact design : 40.06 × 9.72 × 12.60 in indoor unit and 35.04 × 13.46 × 26.50 in outdoor unit — discreet, yet incredibly efficient.

A guarantee that matches the performance

AirGreen offers an exceptional 10-year warranty on parts and compressor with the CANAIR 4C28 series, demonstrating absolute confidence in the quality of the product. For even more peace of mind, an extended labor warranty is available.

And as always at AirGreen , you benefit from:

  • From a free on-site estimate ;

  • Transparent prices , no surprises at the end;

  • Installation by certified and experienced refrigeration engineers ;

  • And payment only at the end of the work , when you are completely satisfied.

An ecological and economical heat pump

Choosing the CANAIR 4C28 is a step toward a greener future. Powered by electricity, it reduces greenhouse gas emissions compared to combustion systems. Its new-generation R-454B refrigerant offers superior energy efficiency and a reduced environmental impact.

In addition to being ecological, it allows you to make significant energy savings , while benefiting from Hydro-Québec subsidies of up to $1,992 .

A perfect solution for every home

Whether you live in a condo in Montreal, a single-family home in Laval or a property on the South Shore, the CANAIR 4C28 adapts to your needs thanks to its single or multi-zone versions.

Every room benefits from personalized comfort—whether you want to cool your living room, heat your basement, or maintain a stable temperature in your bedrooms.

AirGreen: expertise, transparency and unparalleled service

For years, AirGreen has supported hundreds of homes across Greater Montreal , providing reliable, aesthetically pleasing, and efficient HVAC installations. We don't just install a heat pump—we create a comfort experience tailored to your lifestyle, your home, and your budget.


Conclusion: a logical and sustainable choice

The CANAIR 4C28 Wall-Mounted Heat Pump – 18,000 BTU – R454B is more than a heating and cooling unit: it’s an investment in your comfort, energy efficiency and peace of mind .

With its sleek design, advanced technology, proven performance down to -30°C and exceptional warranty, it stands out as one of the best value for money on the Quebec market.

At AirGreen, we believe that smart comfort should never be a luxury.


📞 Contact AirGreen today for a free estimate, personalized advice or a turnkey installation project in Montreal, Laval, Longueuil, on the North Shore or the South Shore .

AirGreen Air Conditioning & Heating
4951 Ste-Catherine Street East, Montreal | (514) 316-2973
RBQ: 5645-9605-01
✉️ sales@airgreen.ca

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