Installation of a Gree Flexx R32 central heat pump in Laval-des-Rapides
AirGreen installed a Gree Flexx R32 central heat pump in Laval-des-Rapides. A high-performance, discreet, and subsidized HVAC system, ideal for condos in Greater Montreal.
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.
A perfectly integrated HVAC system in a co-ownership
At AirGreen , we regularly carry out demanding central heat pump installation projects in urban and semi-urban settings. The example presented here illustrates an intervention carried out in a condo in Laval-des-Rapides , where we installed a Gree Flexx R32 central heat pump . This compact and efficient unit represents the new generation of residential systems, using the more environmentally friendly R-32 refrigerant.
Project context and client needs
The owner was looking for a reliable solution to replace an old wall-mounted air conditioner that had become noisy and inefficient. The goal was twofold: to improve year-round comfort in the condo and to take advantage of new Hydro-Québec and federal subsidies available for energy-efficient equipment operating down to -30°C.
Our recommendation was a Gree Flexx R32 , which is perfectly suited to the constraints of limited outdoor space and offers sufficient power to serve all rooms thanks to its central air manager.
Technical details and installation constraints
The installation took place on a concrete balcony, with limited clearance between the wall and the railing. Here are some highlights:
-
Reinforced wall bracket : The unit is securely fixed using galvanized brackets to free up floor space and reduce vibrations transmitted to the concrete.
-
Refrigeration pipe routing : the insulated and sheathed pipes are carefully protected by discreet gray capping, running along the exterior wall to the technical entrance.
-
Condensate management : thanks to the natural slope of the balcony, drainage could be carried out by gravity, without the addition of a pump.
-
Power Supply : A dedicated circuit, connected via a protective circuit breaker, was drawn from the condo's main panel.
-
Working height : our technicians operated safely, the unit being positioned on the facade above street level, requiring special attention during fixing and connection.
Benefits of the Gree Flexx R32
The Flexx Ultra R32 series represents a major evolution in central heat pump systems:
-
Guaranteed operation down to -30°C , ideal for Quebec winters.
-
Use of R-32 refrigerant , reducing environmental impact by almost 70% compared to R-410A.
-
Compatibility with the LogisVert and Maisons Plus Vertes subsidy programs , allowing significant savings on purchase.
-
Reduced noise level, a considerable advantage in a co-ownership context.
-
Optimized energy efficiency (high SEER, higher HSPF), guaranteeing reduced bills and stable comfort in summer and winter.
Final result
The installation blends harmoniously into the condo's architecture, without encroaching on the balcony's living space. The client now benefits from a quiet, efficient, and economical centralized system , perfectly adapted to the climatic realities of Laval and Greater Montreal.
As always, our team left the site perfectly clean and took the time to explain the operation and maintenance of the heat pump, to ensure optimal long-term use.
Why choose AirGreen in Laval and Greater Montreal?
-
Recognized expertise in HVAC installation for over 15 years.
-
Customized solutions tailored to condos, houses and plexes.
-
Complete support for obtaining subsidies.
-
Reliable after-sales service with maintenance and manufacturer's warranty.
For any central heat pump installation in Montreal, Laval, Longueuil, North Shore or South Shore , trust the AirGreen team.
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).