CANAIR 4CDH R-454B Electric Furnace | 3 Tons

In stock
SKU: 4CDH2036F21
Provincial Subsidy (LogisVert): 3816 $ (Updated: July 17, 2025)
Model Number: 4CDH2036F21
AHRI: 215449707
Works with the Central Heat Pump: 4CDH3624C21
ENERGY STAR: Yes
ENERGY STAR (COLD CLIMATE*): Yes / Yes
SEER2: 17.3
HSPF2: 10.3
EER2: 11.7
Sound Level: 25.5 / 49 dB(A)
Size: 3 Tons
Power: 36,000 BTU
Dimensions (L x D x H): 21.02 x 21.02 x 49.02 in
  • Warranty (Compressor - Parts - Labor): Possible
  • Additional Warranty (10-10-10): Possible
  • Voltage: 220V
  • Gas (Freon): R-454B
  • Piping: 3/8 - 3/4

A revolution in residential comfort: the CANAIR 4CDH R-454B Electric Furnace | 3 Tons

The perfect alliance between performance, reliability and Quebec innovation

At AirGreen , we know that a high-performance central heating system must be energy-efficient, quiet, and durable , especially in Quebec's harsh climate. This is precisely what the CANAIR 4CDH R-454B | 3 Ton Electric Furnace offers, a solution designed to provide optimal comfort down to -30°C while guaranteeing remarkable energy savings for homes in Montreal, Laval, Longueuil, the North Shore, and the South Shore .


A compact and intelligent design for every home

One of the great advantages of the CANAIR 4CDH series is its compact and flexible design . Unlike top-discharge models, this side-discharge unit allows for installation in tight spaces such as backyards, rooftop terraces, or basements with limited access. This design also makes it easy to transport: a single technician can install it efficiently, reducing intervention time and costs.


Superior energy efficiency certified ENERGY STAR

Thanks to a variable speed inverter compressor and an intelligent constant airflow fan , the furnace automatically adjusts its power according to the actual needs of the home . This technology not only helps maintain a stable and pleasant temperature , but also reduces energy waste caused by excessive airflow.

  • SEER2: 17.3

  • HSPF2: 10.3

  • EER2: 11.7

  • Power: 36,000 BTU (3 tons)

These values ​​demonstrate performance well beyond conventional standards, certified ENERGY STAR Cold Climate V6.1 , ideal for Quebec residences seeking to reduce their energy consumption without compromising comfort.


Impressive silence for exceptional acoustic comfort

Modern homes demand not only performance, but also silence. The CANAIR 4CDH system stands out for its ultra-quiet operation , reaching only 25.5 dB(A) indoors and approximately 49 dB(A) outdoors. Thanks to Inverter technology , the compressor adjusts its speed to maintain a constant airflow while minimizing noise—a difference that homeowners notice from the first day of use.


Consistent performance, even in the Quebec winter

This system stands out for its resistance to extreme cold : it retains 100% of its heating capacity down to -20°C and operates down to -30°C , ensuring stable and uniform heat even during the coldest periods of January. The COP reaches 1.8 , guaranteeing excellent energy efficiency even at low temperatures .


An environmentally friendly technology: R-454B refrigerant

The CANAIR 4CDH R-454B uses the new A2L R-454B refrigerant, known for its low global warming potential (GWP of 466) —nearly 70% lower than that of older refrigerants. This eco-responsible choice makes this model a future-proof solution for reducing residential carbon footprints while meeting the requirements of subsidy programs such as LogisVert Québec (up to $3,816 in credits in 2025).


A system designed to last and simplify maintenance

The indoor unit, equipped with a constant flow ECM motor and a modular aluminum evaporator coil , has been designed for easy maintenance . Filter maintenance, electronic board replacement and coil access can be done in just a few minutes, thanks to a sliding panel and a multi-position design (top, bottom, left, right).

Technical characteristics of the furnace:

  • Voltage : 220 V

  • Available electrical elements : 5 kW to 25 kW

  • Indoor fan: Constant flow ECM motor

  • Integrated electronic expansion valve

  • A2L (R-454B) Automatic Leak Detection System

This configuration ensures stable operation, extended service life and simplified maintenance for AirGreen technicians during seasonal maintenance visits.


Smart features for tailored comfort

The included Wi-Fi wired controller allows you to manage temperature, fan speed, and several comfort options from a phone or tablet. The system also offers:

  • Self-diagnosis and self-protection in case of failure.

  • Automatic defrost to prevent the evaporator from freezing.

  • “Follow Me” function that adapts the temperature around the remote control.

  • Protection against cold air drafts when starting the heater.

  • Automatic restart after power failure.

These features make the CANAIR 4CDH R-454B a complete, reliable and user-friendly solution, ideal for families looking for stable, quiet and energy-efficient heating all year round.


Guarantee and peace of mind

AirGreen chooses its products for their proven reliability. The CANAIR 4CDH R-454B comes with a 10-year parts and compressor warranty , with the option to add an additional 10-year labor warranty . This comprehensive coverage ensures long-term peace of mind and reflects the confidence of the Quebec manufacturer Canair , distributed exclusively by Descair .


A smart choice for efficiency, durability and comfort

Whether you're looking to replace your old HVAC system, equip a new build, or simply improve your home comfort, the CANAIR 4CDH R-454B | 3 Ton Electric Furnace is a winning choice.
Its compact design , superior energy efficiency , eco-responsible R-454B technology and quiet operation make it an essential reference for demanding owners in Montreal, Laval, Longueuil, the North Shore and the South Shore .


Contact AirGreen today

At AirGreen , we offer more than just a product: we deliver a complete HVAC experience – from consulting to installation, to after-sales maintenance.
Get a 100% free on-site estimate , with no advance or deposit required. Our RBQ-certified refrigeration engineers guarantee impeccable installation and fast, personalized after-sales service .

📞 Montreal: (514) 316-2973 | South Shore: (514) 316-3007
📧 sales@airgreen.ca
📍 4951 Sainte-Catherine Street East, Montreal | 1370 Joliot-Curie Street, Boucherville


AirGreen — your heating, air conditioning and wall-mounted heat pump expert in Greater Montreal.

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