GREE FLEXX R410A “ADD-ON” Central Heat Pump | 2T - Cased Coil

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A central heat pump designed for Quebec's harsh winters and smart modernization projects

At AirGreen , we have been installing and optimizing central HVAC systems for over 15 years in Montreal , Laval , Longueuil , and on both the North and South Shores . Over the years, we have seen homeowners' needs evolve: reducing energy costs, improving comfort in both winter and summer, and above all, modernizing without starting from scratch . It is precisely in this context that the ADD-ON GREE FLEXX R410A 2-ton central heat pump with a cased coil stands out as a particularly suitable solution.

This system is not designed as a generic central heat pump. It addresses a very real issue in Quebec's housing stock: homes already equipped with ductwork, sometimes with a still-functional electric furnace, but whose overall efficiency no longer meets current expectations. The ADD-ON concept allows for the addition of a high-performance central heat pump to an existing infrastructure, while maintaining a controlled investment approach.

A concrete response to extreme weather conditions

One of the key criteria when choosing a central heat pump in Quebec is its ability to heat at very low temperatures . The GREE FLEXX series was developed specifically to operate in environments with long, cold, and demanding winters. This 2-tonne model maintains stable heating capacity down to -30°C , a threshold we regularly reach during periods of extreme cold in Montreal and on the North Shore.

In practice, this means the system continues to provide consistent heat without prematurely switching to an energy-intensive backup heating system. For many AirGreen customers, particularly in single-family homes in Laval and Longueuil, this feature has significantly reduced winter electricity consumption while maintaining uniform comfort throughout the building.

Stable and predictable heating behavior

Unlike some systems that offer good performance on paper but quickly lose efficiency as soon as the temperature drops, the GREE FLEXX stands out because:

• a gradual increase in power according to actual demand;

• a reduction of short cycles , which are responsible for discomfort and premature wear;

• a more constant indoor temperature , even on very cold nights.

This behavior is particularly appreciated in multi-story houses or houses with heated basements, where temperature variations are often more difficult to control with traditional systems.

Advanced inverter technology and controlled seasonal performance

Intelligent modulation rather than abrupt operation

The variable-speed inverter technology integrated into the compressor is at the heart of the GREE FLEXX central heat pump's performance. Rather than operating in an on/off fashion, the system continuously adjusts its speed to match the building's actual heating needs.

For our residential and multi-unit clients, this modulation translates into concrete advantages:

• improved annual energy efficiency ;

• a reduction in peak electricity consumption ;

• quieter and more stable operation .

In several projects carried out by AirGreen on the South Shore, this technology has made it possible to eliminate the temperature variations felt between the ground floor and the upper floor, a problem frequently reported with older central systems.

Performance indicators adapted to Quebec

The ADD-ON GREE FLEXX R410A 2T central heat pump displays seasonal performance that closely matches local climatic realities:

• High SEER2 for efficient air conditioning during increasingly hot summers;

• HSPF2 optimized for efficient heating over a long winter season;

• High COP at low temperatures , especially at -8°C and -15°C, where the majority of the heating season is concentrated.

These indicators are not just technical figures: they translate directly into real and measurable energy savings for occupants.

Compact, quiet design, and designed for integration

An outdoor condenser suitable for urban environments

The FLEXX series' side-discharge condenser is more compact than many traditional central heat pumps. This design makes it easier to install in space-constrained environments, such as those often found in Montreal, certain neighborhoods of Longueuil, or renovation projects on the North Shore.

The exterior noise level of approximately 52 dB(A) is another significant advantage. In our installations in dense residential areas, this feature helps preserve the peace and quiet of residents and neighbors, while complying with applicable municipal regulations.

Cased coil: robustness and compatibility

The GCAT24F/NaA enclosed coil included in this configuration plays a key role in the system's reliability and ease of integration. It is designed to:

• to integrate seamlessly with existing electric furnaces;

• ensure effective condensation management;

• protect internal components from shocks and dust.

In several modernization projects carried out by AirGreen, this type of coil has made it possible to reduce installation time while improving the overall durability of the system.

Essential technical characteristics

Among the technical elements that define this 2-tonne model:

• Rated power : 24,000 BTU;

• Heating capacity at -8°C : approximately 20,000 BTU;

• Heating capacity at -15°C : approximately 22,000 BTU;

• Refrigerant : R-410A;

• Power supply : 220 V;

• Airflow (CFM) suitable for residential central systems;

• ENERGY STAR® certification , including the Cold Climate designation.

These characteristics explain why this model is regularly chosen for single-family homes, duplexes, and some small multi-unit residential buildings in Montreal and the surrounding areas.

Professional installation, subsidies and AirGreen expertise

An approach based on analysis, not approximation.

At AirGreen , we never size a central heat pump solely based on surface area. Every project begins with a complete thermal analysis , taking into account:

• of building insulation;

• airtightness;

• from sun exposure;

• of the configuration of the ducts;

• occupational habits.

This method allows the full exploitation of the capabilities of the GREE FLEXX 2T, while avoiding problems of oversizing or underperformance in the long term.

During a recent installation in Boucherville, the client had an existing ductwork system in excellent condition but relied exclusively on electric heating. The addition of the ADD-ON GREE FLEXX central heat pump improved winter comfort while significantly reducing energy costs from the very first season.

LogisVert grant and administrative support

This model is eligible for the LogisVert provincial subsidy , which can reach $2,400 depending on the applicable criteria. AirGreen systematically supports its clients throughout the entire process.

• validation of eligibility;

• preparation of required documents;

• AHRI number compliance and certifications;

• support until the grant is obtained.

This support reduces delays and avoids administrative errors, which are often a source of frustration for owners.

Long-term guarantee and peace of mind

The GREE FLEXX central heat pump comes with a 12-year warranty on the compressor and parts , providing a reassuring level of protection for an investment of this magnitude. Additional warranty options may also be offered by AirGreen, depending on the project type and the client's requirements.

Our field experience demonstrates that, when properly installed and maintained, the FLEXX series exhibits remarkable reliability, with very few corrective interventions during the first years of use.

Why entrust your project to AirGreen

Choosing AirGreen for the installation of the ADD-ON GREE FLEXX R410A 2T central heat pump means benefiting from:

• recognized local expertise in Montreal, Laval, Longueuil, North Shore and South Shore;

• certified technicians specializing in central systems;

• clear and transparent pricing , communicated before the start of work;

• of a $5,000,000 liability insurance policy ;

• a structured after-sales service , based on in-depth knowledge of the installed systems.

Conclusion

Are you considering adding or upgrading a high-performance central heating system capable of meeting Quebec's climate requirements? Contact AirGreen today for a complete assessment, a detailed quote, and professional advice on the ADD-ON GREE FLEXX R410A 2T – Cased Coil central heat pump. Our team will guide you every step of the way, from the initial analysis to the final installation.