CANAIR 4CDH R-454B Electric Furnace | 4 Tons
SEER2 (Seasonal Energy Efficiency Ratio)
HSPF2 (Heating Seasonal Performance Factor)
EER2 (Instant Cooling Efficiency)
COP at -8 °C (Heating energy efficiency)
COP at -15 °C (Heating energy efficiency)
Operating temperature down to -30 °C (MAX)
CFM (Airflow)
Excellent home comfort with the CANAIR 4CDH R-454B Electric Furnace | 4 Tons
A new generation of comfort and performance from AirGreen
At AirGreen, we believe a modern HVAC system should do more than heat or cool: it should create smart, energy-efficient and lasting comfort. The CANAIR 4CDH R-454B Electric Furnace | 4 Tons embodies that vision.
Designed for Quebec’s climate, this central furnace combines inverter technology, reliability and respect for the environment, while staying quiet and easy to maintain. Its compact design suits both single-family homes and multi-unit buildings in Montreal, Laval, Longueuil, the North Shore and the South Shore.
With a nominal capacity of 48,000 BTU and high energy efficiency, this furnace paired with its heat pump is a cornerstone of Quebec comfort.
Superior performance, even in extreme winter
Reliable heating down to –30°C
Thanks to its inverter technology, the CANAIR 4CDH R-454B automatically adjusts its output to keep a stable temperature, even during intense cold snaps.
According to the NEEP data for this system (AHRI 215449708), it delivers 39,500 BTU/h at -8°C (COP 2.6) and up to 46,000 BTU/h at -15°C (COP 1.9), and keeps heating down to –30°C with a maximum capacity of 25,900 BTU/h (COP 1.33).
High energy efficiency
The CANAIR 4CDH R-454B Electric Furnace | 4 Tons is ENERGY STAR® cold climate certified.
With a SEER2 of 16.5, an HSPF2 of 9.5 and an EER2 of 10.5, it helps lower energy costs and your carbon footprint without compromising heating or cooling power.
A compact, flexible and smart design
Power in a slim, adaptable format
The 4CDH series’ side-discharge outdoor unit is slim and lightweight, allowing installation in tight spaces such as narrow backyards, flat roofs or small mechanical rooms.
Simplified installation
The front access panel, the maintenance door and the well-placed connections help our technicians work efficiently, for a clean and safe start-up.
Quiet operation, day and night
Its indoor sound level of 34 to 52 dB(A) and 65 dB(A) outdoors provide good acoustic comfort.
Thanks to inverter technology, the compressor continuously adjusts its speed, avoiding the noisy stop-start cycles of traditional models.
Simplified maintenance, built to last
Modular design and easy maintenance
Sliding evaporator coil on rails, for quick cleaning;
Front-removable filter that is easy to reach;
Electronic control board with a digital display;
Automatic diagnostic system that shows error codes to make service easier.
Constant-airflow ECM motor
The built-in ECM motor automatically adjusts fan speed to air pressure and filter condition, for steady airflow and lower electricity use.
Green, responsible technology
R-454B refrigerant
The global warming potential (GWP) of R-454B is 466, compared with 2,088 for the older R-410A.
A smaller carbon footprint
By combining an ECM motor, inverter technology and R-454B, the CANAIR 4CDH R-454B helps reduce greenhouse gas emissions, in line with Quebec’s energy transition.
A solid warranty and a safe investment
CANAIR offers a 10-year warranty on parts and compressor, plus 6 years on labour directly from the distributor, with the option of a 10-10-10 extended warranty that includes labour.
At AirGreen, we back this warranty with fast, transparent, local after-sales service.
Technical specifications – 4-ton model (4CDH2048F21)
| Feature | Value |
|---|---|
| Capacity | 48,000 BTU |
| SEER2 | 16.5 |
| HSPF2 | 9.5 |
| EER2 | 10.5 |
| Heating capacity at -8°C / -15°C | 39,500 / 46,000 BTU/h |
| Indoor sound level (min. / max.) | 34 / 52 dB(A) |
| Outdoor sound level | 65 dB(A) |
| Voltage | 220 V |
| Refrigerant | R-454B (A2L) |
| Dimensions (W × D × H) | 24.49 × 21.02 × 52.99 in |
| AHRI number | 215449708 |
| Compatibility | Outdoor unit 4CDH2048C21 |
| Certification | ENERGY STAR® cold climate |
| Warranty | 10 years (parts and compressor), 6 years (labour), 10-10-10 option |
| Hydro-Québec LogisVert aid | $4,740 (indicative amount; only Hydro-Québec confirms the aid) |
Why trust AirGreen with your installation?
1. Free on-site estimate
Every project starts with a personalized assessment, free and with no obligation: your needs, your space and your energy goals.
2. Experienced technicians
Our refrigeration technicians and installers work under AirGreen’s RBQ licence 5645-9605-01 and handle A2L refrigerants like R-454B safely.
3. Zero deposit, satisfaction guaranteed
You only pay at the end, once the work is done and you are satisfied.
4. Fast, professional service
Our teams work throughout Greater Montreal for installations, maintenance or repairs. To see installations completed by our teams, visit our Our projects page.
5. Our offices and showroom
Montreal (office) – 4951 Ste-Catherine Street East
Boucherville (showroom, South Shore) – 1370 Joliot-Curie Street, Unit 712
A lasting investment in your comfort
Choosing the CANAIR 4CDH R-454B Electric Furnace | 4 Tons means investing in a complete, high-performing and responsible solution that combines savings, comfort and ecology.
Contact AirGreen today
Get a free in-home estimate for the installation of your CANAIR 4CDH R-454B Electric Furnace | 4 Tons. Our experts travel throughout Montreal, Laval, Longueuil, the North Shore and the South Shore.
Phone: 514-316-2973
Email: sales@airgreen.ca
AirGreen – Your comfort, our HVAC expertise.
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labour, directly from the distributor.