Installation of a Gree Flexx R32 central heat pump in Laval-des-Rapides
AirGreen project in Laval-des-Rapides: installation of a Gree Flexx R32 central heat pump with indoor air manager, compliant drainage and optimal performance for Quebec winters.
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.
In this project carried out in Laval-des-Rapides , our AirGreen team carried out the complete installation of a Gree central heat pump , a choice particularly suited to modern single-family homes and condominiums seeking consistent comfort, summer and winter, throughout the house.
A high-performance and discreet central system for four-season comfort
The installed system is a Gree Flexx R32 central heat pump , a solution known for its versatility, heating performance in cold weather, and compatibility with existing ductwork. This type of equipment allows for the replacement or modernization of an older central system while significantly improving the building's overall energy efficiency.
Thanks to Gree's Inverter technology and the use of R32 refrigerant, the heat pump continuously adjusts its power according to the actual needs of the house, resulting in:
-
a stable temperature in all rooms,
-
a significant reduction in electricity consumption,
-
quiet and reliable operation.
Context and constraints of the construction site in Laval-des-Rapides
The installation was carried out in a compact interior mechanical space, typical of residential buildings in Laval-des-Rapides . The photo clearly shows a central air handling unit installed in the ceiling, connected to an existing ductwork network, with several technical elements to manage:
-
Airtight metal plenum , carefully sealed to limit air loss.
-
Condensation drain with U-shaped siphon , ensuring safe and compliant drainage.
-
Insulated refrigeration lines , laid neatly to avoid condensation and maximize efficiency.
-
Wall penetrations sealed with insulating foam , in order to preserve the thermal envelope of the building.
These details are essential to ensure the durability of the system and prevent common problems such as air leaks, excessive noise, or humidity.
Why the Gree Flexx R32 central heat pump is an excellent choice
The Gree Flexx R32 is particularly well-suited to the Quebec climate. It offers excellent heating capacity even during periods of extreme cold, making it a credible—and often superior—alternative to traditional electric systems or older furnaces.
Key advantages of this type of residence:
-
Compatible with multiple duct configurations
-
Stable performance in Quebec winters
-
R32 refrigerant is more environmentally friendly
-
Simplified maintenance
-
Excellent longevity
In areas like Laval-des-Rapides, where houses and plexes often have already established mechanical configurations, this model allows for an efficient upgrade without major renovation .
An AirGreen installation focused on quality and peace of mind
At AirGreen, we pay particular attention to the invisible but crucial details: sealing, insulation, drainage, component alignment, and strict adherence to Gree manufacturer procedures. Each installation is designed to deliver optimal performance from day one, while minimizing long-term maintenance needs.
Our team also ensures that the system is ready to meet the requirements of available grant programs, where applicable, which can represent a significant financial benefit for homeowners.
Centralized, sustainable comfort adapted to Laval
This project in Laval-des-Rapides perfectly illustrates how a Gree central heat pump can transform a home's comfort while improving its energy efficiency and long-term value. Whether for a replacement or a new installation, this type of system represents a smart investment for homeowners in 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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 24 hours.
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).