Installation of a Gree Flexx Central Heat Pump in Saint-Lambert
Looking for a reliable HVAC solution? Discover how AirGreen installed the Gree Flexx 5 Ton Central Heat Pump in Saint-Lambert, offering year-round comfort with cutting-edge efficiency.
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A Seamless HVAC Solution for Year-Round Comfort
At AirGreen, we specialize in high-quality HVAC installations across Greater Montreal, Laval, Longueuil, and surrounding areas. Recently, we had the pleasure of completing a standout installation for a customer in Saint-Lambert, on the South Shore of Montreal. The system we installed was a 5-ton Gree Flexx central heat pump, a model that combines cutting-edge technology with unparalleled performance.
The Challenge: Heating and Cooling for Every Season
The client was in search of a system that would provide reliable heating during Quebec's harsh winters, as well as powerful cooling in the summer. With temperatures dipping to -30°C in winter and soaring up to 46°C in summer, we knew we needed to install a unit that could handle extreme weather conditions with ease. Enter the Gree Flexx 5 Ton Central Heat Pump, a robust, versatile system perfect for year-round comfort.
Why the Gree Flexx?
The Gree Flexx model we chose for this project is built to perform in the most demanding climates. It boasts a heating capacity down to -30°C, ensuring warmth even in the dead of winter. Plus, its cooling capacity of 60,000 BTU makes it ideal for larger homes or commercial spaces that need reliable temperature control during the hottest days of summer.
Key Specifications:
- Efficiency: 17.0 SEER, 10.5 HSPF
- Heating Capacity: -30°C
- Cooling Capacity: 60,000 BTU
- Dimensions (L x D x H): 39.38 x 14.5 x 53.63 inches
- Freon Type: R-410A
- Sound Level: 58 dB(A) outdoors
- Pipes: 3/8 – 3/4 inch
- Warranty: 12 years on compressor and parts
These features make the Gree Flexx not only highly efficient but also exceptionally durable, ensuring the customer enjoys long-term energy savings and peace of mind.
The Installation: Tailored to Perfection
We take pride in our attention to detail, and this project in Saint-Lambert was no exception. Our team began by carefully assessing the home’s existing HVAC infrastructure to determine the best placement for the outdoor condenser unit. The Gree Flexx unit, with its EVI Inverter technology, required precise installation to ensure maximum efficiency and minimal noise.
The outdoor unit was positioned strategically along the exterior wall, ensuring optimal airflow and easy access for maintenance, all while keeping noise levels to a minimum. With a sound pressure level of only 58 dB(A), the Gree Flexx ensures the outdoor environment remains peaceful—an essential feature for suburban settings like Saint-Lambert.
Grants and Savings
One of the major selling points for the Gree Flexx installation is its eligibility for significant government incentives. This unit qualifies for the LogisVert grant by Hydro-Québec, offering up to $4,560 in rebates for homeowners. For our client in Saint-Lambert, this translated to substantial savings, making the Gree Flexx not only an environmentally friendly option but also a cost-effective one.
Performance in Extreme Conditions
With temperatures regularly plummeting below freezing in Quebec, the Gree Flexx’s low ambient heating capabilities were a perfect match. This model is engineered to maintain indoor comfort even when the thermometer hits -30°C. Whether during intense winter storms or scorching summer days, the Gree Flexx ensures a balanced, comfortable indoor climate year-round.
Eco-Friendly and Future-Proof
The R-410A Freon used in this unit is known for its lower environmental impact compared to older refrigerants. Not only does it ensure that the system complies with modern environmental standards, but it also prepares the homeowner for future regulations. Additionally, the unit is Energy Star® certified, further solidifying its reputation as an energy-efficient and eco-friendly option.
Customer Satisfaction: Our Top Priority
The client was thrilled with the installation, particularly the quiet operation of the unit and the sleek, modern design of the outdoor condenser. With 17 SEER efficiency, they are expected to see a noticeable reduction in their energy bills, especially during high-demand seasons like winter and summer.
Our team provided a thorough walkthrough of the system’s features, ensuring the homeowner was comfortable with the Wi-Fi-enabled thermostat and the unit’s self-diagnostic capabilities. These advanced features mean that, in the rare event of an issue, the system can quickly diagnose itself, minimizing downtime and repair costs.
Extended Warranty Options
At AirGreen, we believe in offering our customers more than just a standard installation. For this Gree Flexx installation, we also provided the option for an extended warranty, covering up to 10 years on labor. This ensures the client remains worry-free for the next decade, knowing that their system is fully covered.
Final Thoughts: Why Choose AirGreen?
Choosing the right HVAC system is a crucial decision for any homeowner, especially in regions like Quebec where temperatures fluctuate drastically. At AirGreen, we’re committed to offering tailored HVAC solutions that meet the specific needs of our clients. With over a decade of experience in the industry, we pride ourselves on delivering top-tier service, from installation to ongoing maintenance.
The Gree Flexx 5 Ton Central Heat Pump is an outstanding solution for anyone looking to optimize their home’s climate control system. Its powerful performance, combined with the generous rebates and extended warranties available, make it a smart investment for long-term savings and comfort.
Whether you’re considering an upgrade or a completely new installation, AirGreen is here to help you make the best choice for your home and budget. Contact us today to learn more about the Gree Flexx or to schedule your consultation.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
The equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
Access protected, old unit disconnected and removed when it is being replaced.
Electric furnace or air handler, with its coil, connected to the supply and return ducts.
On a level base, raised above the snow, with free space all around.
Insulated, they enter through a sealed opening and run to the indoor coil.
Dedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
Leak test, vacuum, start-up, airflow check and a test of both modes.
Filter, thermostat, backup heat in extreme cold: what to know before winter.
- The on-site estimateWe look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
- The quoteThe equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
- Getting readyAccess protected, old unit disconnected and removed when it is being replaced.
- The indoor moduleElectric furnace or air handler, with its coil, connected to the supply and return ducts.
- The outdoor unitOn a level base, raised above the snow, with free space all around.
- The refrigerant linesInsulated, they enter through a sealed opening and run to the indoor coil.
- Electrical and thermostatDedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
- Tests and start-upLeak test, vacuum, start-up, airflow check and a test of both modes.
- The walkthroughFilter, thermostat, backup heat in extreme cold: what to know before winter.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
It captures or rejects heat outside. It sits on a level base, above the snow, with free space all around.
The insulated refrigerant lines enter the house through a sealed opening and run to the indoor coil.
A shut-off switch near the outdoor unit isolates it safely for service.
Sitting on the indoor module, it moves heat between the house air and the refrigerant.
Electric furnace or air handler: its fan pushes air through the ducts. The electric backup takes over in extreme cold.
Supply ducts bring air to the rooms; returns bring it back to the unit. Their condition matters as much as the unit's.
It protects the coil and the fan. A dirty filter cuts airflow, so it gets checked regularly.
It runs the heat pump and the backup heat. It must be compatible with the installed system.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Check the indoor module's filter.
- Clear winter debris from the outdoor unit.
- Test cooling before the heat arrives.
- Check the filter more often in peak season.
- Keep registers and returns clear.
- Watch condensate drainage near the coil.
- Change or clean the filter.
- Test heating and backup heat before the cold.
- Book periodic maintenance.
- Clear snow around the outdoor unit.
- Store nothing in front of the indoor module.
- Note any unusual noise or smell and call us.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. A central heat pump uses the house's ducts.
It connects to the existing ducts to heat and cool everywhere.
2. In extreme cold, electric backup heat can take over.
The indoor module (furnace or air handler) works with the heat pump and takes over in extreme cold.
3. The filter only gets changed when the unit breaks down.
A dirty filter cuts airflow. It gets checked regularly.
4. You can reuse the old unit's size without checking.
The house may have changed: insulation, windows, added rooms. Capacity is confirmed on site.
0 / 4 right answers
What people ask us about this kind of work
Can I keep my current ducts?
What happens in extreme cold?
Furnace, air handler, ducted: what is the difference?
Are there grants?
Do I need a permit?
How much can I save?
How is the LogisVert assistance calculated?
Will my current thermostat work?
Central or wall units: which one?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).