Central Heat Pump ADD ON CANAIR R410A | 24000 BTU - Cased Coil

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A central heat pump designed for the real-world conditions of Quebec

At AirGreen, we work daily with HVAC systems installed in very real-world contexts: existing homes, sometimes older ductwork, specific electrical constraints, acoustic requirements in dense urban environments, and, above all, a Quebec climate that doesn't tolerate approximations. The CANAIR R410A | 24,000 BTU – Cased Coil Central Add-On Heat Pump fits perfectly within this framework of technical realism. It's a central system designed to offer stable and measurable performance in harsh winter conditions, while remaining compatible with a wide variety of residential and multi-unit building configurations.

This model is designed for homeowners who want to upgrade their system without starting from scratch: adding a high-performance heat pump, reducing heating costs, accessing subsidies, and retaining an existing central structure when suitable. In areas like Montreal , Laval , Longueuil , the North Shore , and the South Shore , this type of project is particularly common, and that's precisely where this ADD-ON heat pump truly shines.

An ideal ADD-ON design for central conversion projects

The concept of an add-on system is often misunderstood. In practice, it allows a central heat pump to be integrated into an existing system—often an electric furnace—without requiring extensive structural work. This represents a significant advantage for many buildings constructed between the 1970s and 2000s, whose ductwork is still functional but energy-inefficient.

In practical terms, this configuration allows:

• to retain existing ducts when they are properly sized and airtight;

• to significantly reduce installation costs compared to a complete replacement;

• to immediately improve comfort in air conditioning and heating;

• to reduce overall energy consumption, particularly during the winter period.

At AirGreen, we have completed several conversions of this type in Montreal East , Ahuntsic , Laval West , and Brossard , where homeowners wanted to keep their electric furnace as a backup while adding a central heat pump capable of handling the majority of their annual heating needs. In these scenarios, the CANAIR 24,000 BTU ADD-ON model proved to be a particularly well-balanced solution.

Detailed technical data consistent with actual usage

The 24,000 BTU (2-tonne) version is based on a proven architecture and technical features adapted to the local climate:

• Cooling capacity : 24,000 BTU

• Heating capacity : stable operation down to -30°C

• Rated power : 24,000 BTU

• Power at -8°C : approximately 21,000 BTU

• Power at -15°C : approximately 20,000 BTU

• Refrigerant : R-410A

• SEER2 : up to 16.8

• HSPF2 (CPSC2) : up to 9.5

• COP at -15°C : nearly 1.95

• ENERGY STAR® certification , including Cold Climate

These values ​​are particularly important for homeowners who want a system capable of providing primary heating during the winter, and not just a seasonal transition function.

Heating performance: consistency and stability during extreme cold.

In our field experience, actual heating performance is the determining factor for a central heat pump in Quebec. The CANAIR ADD-ON Central Heat Pump stands out for its ability to maintain high efficiency even when temperatures drop well below -15°C.

We installed this model in a single-family home in Mascouche , where the old electrical system was resulting in high bills and uncomfortable temperature fluctuations. After a full winter season, the results were clear:

• measurable reduction in electricity consumption;

• uniform internal temperature across the entire duct network;

• reduction of the need for supplementary electricity during prolonged periods of cold;

• stable operation, without aggressive cycling or excessive noise.

This type of behavior is precisely what we are looking for when we integrate a product into our AirGreen offering.

Outdoor unit with side discharge: flexibility and urban integration

The CDH2024C21 outdoor unit features a side-discharge design, a choice that offers tangible advantages in urban and suburban residential environments. This design facilitates:

• installation in confined spaces;

• compliance with the required clearances around the unit;

• improved airflow management in dense environments;

• a reduction in visual impact compared to some larger units.

With a maximum sound level of approximately 64 dB(A) , this unit remains compatible with dense residential areas, particularly in Longueuil and several boroughs of Montreal , where acoustic considerations are often a major issue.

"Cased Coil" internal coil: robustness and thermal efficiency

The MAC-24HWDN1-MN0 internal cased coil plays a central role in system stability. Its rigid housing allows for a tight seal within the plenum and minimizes heat loss, directly contributing to the overall system efficiency.

The choice of a coil made entirely of aluminum is not insignificant. In our experience, this material offers:

• excellent corrosion resistance;

• increased longevity in a variety of residential environments;

• efficient and constant heat transfer.

This type of component is particularly relevant in central installations where long-term reliability is paramount.

HVAC Installation: A Methodical and Adapted Approach

A high-performance central heat pump cannot deliver its full potential without a rigorous HVAC installation . At AirGreen, every project involving this model begins with a complete analysis:

• calculation of actual thermal loads;

• assessment of the building's insulation and envelope;

• verification of the pipe network (flow rate, leak tightness, static pressure);

• validation of electrical compatibility (220 V, MCA 21 A, MOP 35 A).

In several older residences in Laval and the North Shore , these checks help to avoid significant losses in performance and ensure long-term performance in line with expectations.

LogisVert subsidy and overall profitability

This model is eligible for the LogisVert provincial grant , currently valued at $2,520 . For many customers, this financial assistance plays a key role in the decision to invest in a central heat pump rather than maintaining purely electric heating.

When the subsidy is combined with reduced energy consumption and improved comfort, the return on investment quickly becomes tangible, particularly in homes heated primarily by electricity.

Long-term guarantee and security

The CANAIR ADD-ON R410A Central Heat Pump | 24,000 BTU – Cased Coil is covered by a 10-year warranty on the compressor and parts . An additional labor warranty can be added, an option we frequently recommend for central systems to ensure complete peace of mind over the long term.

Why AirGreen recommends this model

We select our products according to strict criteria: actual performance, compatibility with existing installations, long-term stability, and a cost-benefit ratio. This model meets these requirements, which is why it is an integral part of our HVAC offering for central projects.

It represents a balanced solution for homeowners in Montreal , Laval , Longueuil , the North Shore and the South Shore who want a reliable, efficient central heat pump adapted to the Quebec climate.

Conclusion

Are you considering installing a central heat pump or an add-on conversion to an existing system? At AirGreen, we analyze your specific situation, energy needs, and HVAC configuration before proposing a precise and tailored solution. Contact us today for a comprehensive assessment and a detailed, no-obligation quote.