Gree FLEXX ULTRA R32 Central Heat Pump | 3 Tonnes | Montreal, South Shore, Montérégie

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• Official Brochure: ENGLISH

A central solution designed for Quebec winters and real buildings

At AirGreen, we work daily with homeowners, property managers, and contractors throughout Montreal, Laval, Longueuil, and on both the North and South Shores . What we've observed over the years is simple: expectations for central heat pumps have changed dramatically. People are no longer just looking for air conditioning in the summer, but also for efficient heating in the depths of winter , reduced energy bills, preserved indoor comfort, and long-term system durability.

The Gree FLEXX ULTRA R32 – 3-tonne central heat pump is a perfect solution for this reality. It's a central system designed from the ground up to operate in demanding climatic conditions, including the extreme temperatures we experience in Quebec. Its architecture, modulation, refrigerant, and installation flexibility make it a strategic choice for both single-family homes and multi-unit buildings.

A technical design focused on stability and consistency

High-performance heating down to -30°C without compromise

One of the most crucial criteria for our customers is the actual heating capacity in cold climates . Unlike some systems that boast good theoretical performance but quickly drop below zero, the Gree FLEXX ULTRA R32 maintains reliable heat output down to -30°C .

For the 3-tonne version (36,000 BTU) :

• Nominal heating capacity : 36,000 BTU

• Power at -8°C : 28,200 BTU

• Power at -15°C : 34,000 BTU

In practice, this means that in a well-insulated home in Brossard, Saint-Hubert, or Laval , the system covers the majority of heating needs without prematurely switching to supplemental heating. In several installations completed by AirGreen, clients report a stable temperature even on the coldest nights, with continuous operation and no harsh cycling.

Uniform and efficient air conditioning during hot weather

In air conditioning mode, the 36,000 BTU cooling capacity allows for efficient service of large areas, while maintaining a homogeneous air distribution through the existing duct network.

We observe particularly good results in multi-story or open-concept homes, where wall-mounted systems sometimes reach their limits. A central heat pump then ensures consistent comfort, without excessively cold or hot areas.

Energy efficiency and tangible savings

Performance indicators tailored to grant programs

The Gree FLEXX ULTRA R32 is ENERGY STAR® and ENERGY STAR® Cold Climate certified, making it eligible for provincial programs like LogisVert , with a subsidy of up to $3,384 for this model.

Its seasonal performance is particularly interesting:

• SEER2 up to 18

• HSPF2 up to 10.5

• COP at -8 °C greater than 3

These figures translate directly into a reduction in annual electricity consumption , especially compared to older central systems or electric furnaces alone. At AirGreen, we always analyze this data with clients to estimate realistic savings based on the building's actual usage.

Dehumidification and indoor air quality

Comfort that goes beyond just temperature

Indoor comfort doesn't depend solely on heating or air conditioning. Humidity plays a major role, especially during the summer and in basements.

The Gree FLEXX ULTRA R32's dehumidification capacity of approximately 11.26 pints per hour allows for:

• Reducing the feeling of heaviness in summer

• Limit condensation on cold surfaces

• Improve indoor air quality

In several residences in Montreal and Longueuil , this system has eliminated the need for portable dehumidifiers, simplifying maintenance and reducing overall electricity consumption.

Installation flexibility: a major advantage in the field

Ideal for central system replacements

One of the major strengths of the Gree FLEXX ULTRA R32 is its compatibility with existing configurations . It works with a conventional 24V thermostat , which greatly simplifies replacement projects without requiring extensive modifications to the control system.

Other key elements:

• Maximum pipe length: 30 meters

• Maximum elevation: 15 meters

• Compatible with dual energy and dual fuel

• R-32 (A2L) refrigerant with integrated safety sensor

In projects carried out by AirGreen in Laval-des-Rapides and Terrebonne , this flexibility made it possible to keep the existing ducts while completely modernizing the energy performance of the building.

Dimensions and discreet integration

Despite its power, the system maintains dimensions well-suited to residential mechanical rooms. Controlled noise levels—approximately 60 to 63 dB(A) depending on the configuration—facilitate its integration even in dense residential areas or terraced buildings.

Concrete examples of AirGreen installations

Single-family home on the South Shore

In Boucherville, we installed a Gree FLEXX ULTRA R32 – 3-tonne lift in a two-story house built in the early 2000s. The client wanted:

• Replacing an old, energy-intensive central system

• Reduce winter heating costs

• To benefit from a provincial grant

After a first full season, electricity consumption related to heating decreased significantly, while improving thermal comfort on the upper floor, which was previously difficult to balance.

Multi-unit residential building in Montreal

In a small, three-unit building in Montreal East, this model allowed for a complete modernization of the central heating system without major reconstruction. The stability of the heating and the reliability of the compressor were key factors for the owner, who was keen to minimize service calls.

Maintenance, reliability and durability

Simple but essential maintenance

Like any central HVAC system, the Gree FLEXX ULTRA R32 requires regular maintenance to maintain its performance:

• Annual cleaning of the internal coil

• Checking airflow and pressures

• Inspection of the refrigeration circuit

• Control of safety components

At AirGreen, we find that systems maintained annually offer better longevity and much more consistent performance stability, especially after several harsh winters.

Guarantee and peace of mind

This model is covered by a 12-year warranty on the compressor and parts , with the possibility of an extended warranty depending on installation and registration. This coverage helps secure the long-term investment, a crucial point for our residential and commercial customers.

Why entrust your project to AirGreen

Choosing the right central heat pump is one thing. Getting it installed correctly is another .

At AirGreen, we distinguish ourselves by:

• A rigorous thermal analysis before each project

• A precise adaptation to the characteristics of the building

• Experienced and certified refrigeration technicians

• Clear and final submissions before work begins

• A $5 million liability insurance policy

Our hands-on experience with the Gree FLEXX ULTRA R32 allows us to anticipate challenges and optimize each installation, whether in Montreal, Laval, Longueuil or elsewhere on the South Shore and North Shore.

Conclusion

The Gree FLEXX ULTRA R32 – 3-tonne central heat pump is a robust, high-performance solution adapted to Quebec's climate. It is ideal for homeowners seeking a reliable, energy-efficient central system that qualifies for subsidies and provides consistent comfort year-round.

For a personalized assessment , a detailed proposal , or to verify your project's eligibility for grant programs, contact AirGreen directly . Our team will be pleased to assist you with a transparent, technical, and results-oriented approach.