GREE FLEXX R32 "ADD-ON" Central Heat Pump | 2T | Cased Coil
SEER2 (Seasonal Air Conditioning Efficiency)
HSPF2 (Seasonal heating efficiency)
EER2 (Instantaneous efficiency in air conditioning)
COP at -8 °C (Heating energy efficiency)
CFM (Airflow)
An ADD-ON central heat pump designed for Quebec buildings, without compromise
At AirGreen, we've been installing and maintaining central HVAC systems throughout Montreal , Laval , Longueuil , and on both the North and South Shores for long enough to know that a truly high-performing system is never just a spec sheet. The ADD-ON GREE FLEXX R32 2-ton central heat pump with a boxed coil perfectly embodies this philosophy: a technical solution designed for Quebec's climate, existing buildings, and the real needs of homeowners.
This ADD-ON model was designed to address a common problem: modernizing a heating and cooling system without a complete overhaul. In many residential projects, the ductwork is already in place, the furnace is still functioning adequately, but energy costs are high and winter comfort is lacking. The GREE FLEXX allows for the addition of a high-performance central heat pump, capable of providing the majority of annual heating needs, while retaining the existing infrastructure.
An intelligent ADD-ON design, adapted to existing systems
The ADD-ON configuration is one of the major advantages of this central heat pump. Specifically, the system combines:
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An outdoor unit with variable speed (INVERTER)
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An A-shaped coil installed in a box (GCAC24F/NHA)
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Can be paired with an electric furnace or other air generator
This architecture allows for seamless integration into existing HVAC systems, without major ductwork modifications. At AirGreen, we have installed this configuration in single-family homes, duplexes, triplexes, and even multi-unit buildings, particularly in East Montreal, Laval-des-Rapides, and Boucherville.
The box-section coil uses copper tubes and aluminum fins with an anti-corrosion treatment, a crucial detail for ensuring long-term durability. In many basements and mechanical rooms in Greater Montreal, ambient humidity and proximity to unheated areas demand components capable of withstanding real-world conditions, year after year.
Heating performance: a concrete solution for harsh winters
The GREE FLEXX R32 2T stands out for its ability to provide efficient heating at very low outdoor temperatures. Unlike older or undersized systems, this central heat pump continues to operate stably down to -30°C .
Its key features include:
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Nominal cooling capacity : 24,000 BTU
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Heating capacity down to -30°C
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Power at -15°C : 24,000 BTU
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Power at -8°C : 15,000 BTU
In practice, this means the system covers a very large portion of annual heating needs, significantly reducing reliance on more energy-intensive supplemental heating. Several customers on the North Shore have reported an immediate improvement in thermal comfort, particularly during periods of intense cold when conventional systems struggle to keep up.
INVERTER technology allows for precise power modulation, preventing abrupt cycles and temperature fluctuations. Comfort is more stable, noise is reduced, and energy consumption is better controlled.
Measurable energy efficiency and eligibility for subsidies
The energy performance of the GREE FLEXX central heat pump is not theoretical; it is reflected in clear indicators:
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SEER2 : 16.03
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HSPF2 : 8.515
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EER2 : 11.02
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COP at -8 °C : 1.83
These values explain why this model is ENERGY STAR® certified, including in the Cold Climate category, and why it is eligible for the LogisVert provincial grant , currently valued at $1,800 , depending on the installation and building eligibility.
At AirGreen, we always integrate subsidy analysis from the submission phase. This allows our clients to know the true net cost of the project before work even begins, avoiding any unpleasant surprises.
R-32 refrigerant: efficiency, future and compliance
The GREE FLEXX uses R-32 refrigerant , a choice that is becoming increasingly common in modern HVAC systems. For homeowners concerned about sustainability and future compliance, this represents a tangible advantage.
R-32 offers:
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A lower global warming potential than older refrigerants
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Improved energy efficiency per unit load
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Compatibility with evolving environmental standards
The system also incorporates safety devices adapted to this type of refrigerant, which are perfectly mastered by AirGreen's certified refrigeration technicians during HVAC installation, commissioning and maintenance.
Acoustic comfort and indoor air quality
In a dense urban environment like Montreal or Longueuil, the noise from an outdoor unit is a real concern. With a noise level of approximately 60 dB(A) , the GREE FLEXX central heat pump falls within a very reasonable range for residential use.
The airflow , which can reach approximately 1,500 CFM , ensures even distribution throughout the ductwork. When properly installed and balanced, this central heat pump provides consistent temperature from room to room, even in multi-story or open-plan homes.
The integrated dehumidification function, rated at 7.73 pints per hour , significantly improves comfort in summer, particularly in older or less airtight buildings.
The installation: where the AirGreen difference is real
Installing an ADD-ON central heat pump requires specific expertise. At AirGreen, we've found that the most frequent problems rarely originate from the equipment itself, but rather:
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Due to poor sizing
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From a poorly assessed static pressure
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From an inadequately integrated coil
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From a botched commissioning
That's why every project begins with a detailed analysis of the building, the existing system, and consumption habits. In Montreal, as on the South Shore , we have often corrected existing installations where the heat pump was technically adequate but poorly integrated.
With GREE FLEXX , the modularity of the system allows us to precisely adjust the configuration to the building, rather than forcing a standardized solution.
Reliability, guarantees and long-term peace of mind
The ADD-ON GREE FLEXX R32 central heat pump is covered by a 12-year warranty on the compressor and 12-year warranty on parts (labor not included), with additional warranty options depending on the project.
However, at AirGreen, we know that true reliability rests on three pillars: good equipment, rigorous installation, and accessible after-sales service. Our teams regularly perform HVAC maintenance, seasonal adjustments, and long-term monitoring, which extends the system's actual lifespan.
Why entrust your project to AirGreen
Our clients choose AirGreen for concrete and verifiable reasons:
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Transparent pricing , communicated before work begins
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Field expertise across hundreds of central HVAC installations
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A perfect command of Quebec standards and programs
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$5,000,000 liability insurance
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A professional, structured and accessible service
Whether your property is located in Montreal , Laval , Longueuil , on the North Shore or the South Shore , our approach remains the same: analyze, recommend and install a solution truly adapted to your building.
Upgrade to a high-performance and durable central heat pump
The ADD-ON GREE FLEXX R32 2T central heat pump with boxed coil is a coherent solution for homeowners who want to improve their comfort, reduce their energy costs and modernize their HVAC system without major reconstruction.
For a detailed quote , a technical analysis of your existing installation or professional advice tailored to your situation, contact AirGreen Air Conditioning & Heating directly.
Contact AirGreen now for your central heat pump project in Montreal, Laval, Longueuil, on the North Shore or the South Shore.