Installation of a Gree Flexx R32 central heat pump in Chomedey, Laval
Installation of a Gree Flexx R32 central heat pump in Laval: high-performance R-32 system, expert AirGreen installation in a narrow space, maximum energy efficiency and four-season comfort.
Take a tour of the installation
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.
An optimized installation in a restricted space
At AirGreen , we understand that every property presents unique challenges when it comes to installing a high-performance heating, ventilation, and air conditioning (HVAC) system. This installation, carried out in the residential neighborhood of Chomedey, Laval , perfectly illustrates our ability to adapt our methods to tight and demanding environments.
Our team installed a Gree Flexx R32 central heat pump , a high-energy efficiency system operating with the new ecological R-32 refrigerant, known for its performance down to –30°C and its superior efficiency.
A controlled technical implementation
The outdoor unit, installed between the house and a wooden fence, had to be positioned with millimeter precision to ensure optimal air circulation despite the proximity of the walls. We used:
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Reinforced wall brackets , allowing the unit to be cleared from the floor and ensuring safe ventilation;
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A calibrated rear clearance , in order to avoid any restriction of air flow;
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Careful management of the wiring and refrigerant pipes , hidden under discreet beige capping, matching the coating.
Condensate drainage is by gravity , thanks to a slight inclination of the line route, eliminating the need for an additional pump and simplifying future maintenance.
Choosing a Gree Flexx R32 heat pump: power, silence and durability
The Gree Flexx R32 represents the new generation of central heat pumps adapted to the Quebec climate. Its continuously speed-modulating inverter compressor allows:
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A Seasonal Energy Efficiency Ratio (SEER) greater than 18 ,
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Stable performance down to –30°C ,
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A significant reduction in heating costs , particularly in mid-season,
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A remarkably low noise level , essential for an installation in a dense residential area like Chomedey.
The unit uses R-32 refrigerant , which is much more environmentally friendly than R-410A. This choice is part of AirGreen's commitment to installing equipment that complies with new Canadian environmental standards .
An installation designed for sustainability
Our certified technicians have performed a complete refrigeration charge check , leak test and electronic compressor calibration to ensure optimal performance from day one.
The indoor unit was connected to an existing centralized duct network , which was completely cleaned and recalibrated. This approach not only allows for the reuse of existing infrastructure , but also improves the even distribution of air throughout the house.
We've also installed a MERV 11 filter to ensure superior indoor air quality and reduce the presence of allergens—an often overlooked detail, but essential for daily comfort.
A project carried out with respect for the neighborhood
Given the narrowness of the driveway where the outdoor unit is located, our team planned the intervention to minimize noise and visual disturbances . The unit is now firmly anchored , perfectly aligned with the exterior cladding, and invisible from the street—an aesthetic and technical result that meets the client's expectations.
Subsidies and energy efficiency
This Gree Flexx R32 central heat pump installation is eligible for provincial grant programs , including Chauffez Vert and Rénoclimat , thanks to its Energy Star certified performance and its ability to operate at very low temperatures.
Our AirGreen experts systematically support each client in the preparation of grant documents , ensuring that owners benefit from the maximum financial incentives available .
Final result
Thanks to careful planning and our expertise in high-performance HVAC systems , this Chomedey residence now benefits from exceptional thermal comfort all year round , with optimized energy efficiency and reduced environmental impact.
At AirGreen , every installation reflects our commitment to quality, precision and customer satisfaction throughout Greater Montreal .
The big day, step by step
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 would it look like at your place?
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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).