Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Montreal East: a 2-zone, 2-head solution for precise comfort in a compact residential space
AirGreen installs a GREE FREE MATCH R32 DoubleZone heat pump in Montréal-Est: 2 zones, 2 wall units, precise comfort, clean HVAC installation, and a multizone solution tailored for 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.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A discreet HVAC installation in an interior where every detail matters
In Montréal-Est, our AirGreen team installed a GREE FREE MATCH R32 DoubleZone heat pump, configured with 2 zones and 2 wall units, in a residence where the interior space required a particularly careful approach. The project photo shows one of the GREE wall units installed high up, in a living area where the proximity to the ceiling, recessed lighting, the presence of a wall detector, and the layout of openings required precise planning.
This type of project reflects very well the reality of many homes in the east of Montreal: rooms are not always large, available walls are sometimes limited, and the installation must be efficient, clean, and visually acceptable. A poorly positioned wall-mounted heat pump can quickly become too intrusive in the room, create uncomfortable drafts, or complicate maintenance. In this case, the chosen location allowed maximizing air diffusion while maintaining a sleek and well-integrated finish.
The GREE FREE MATCH R32 is particularly interesting for this type of installation because it allows powering two indoor units from a single outdoor unit. For homeowners who want to improve comfort in two distinct zones without multiplying outdoor equipment, this DoubleZone configuration represents an efficient, flexible solution adapted to the residential needs of Greater Montreal.
Why this DoubleZone heat pump was suitable for this Montréal-Est residence
In several houses, condos, and apartments in Montréal-Est, comfort management is often done room by room. One area can become too hot in the summer, while another remains acceptable. A bedroom may require more heating in the evening, while a living room or living space mainly needs good air conditioning control during humid days. It is precisely in this context that a DoubleZone heat pump makes perfect sense.
With two wall-mounted heads connected to a single outdoor unit, the system allows treating two areas more precisely than a single-zone installation. Instead of relying on a single wall-mounted head to influence the entire house, each zone receives its own supply of air conditioning or heating, according to actual needs.
An installation in an indoor area with multiple constraints
The wall-mounted head visible in the photo is installed in a high part of the wall, under a relatively low ceiling. Two recessed ceiling lights and a round wall device to the right of the unit, probably related to security or existing ventilation, are also noticeable. These elements imposed a significant constraint: the GREE head had to be installed without interfering with the existing equipment, without creating excessive visual interference, and without compromising good air circulation.
In a HVAC installation of this type, a few centimeters can make a big difference. It is necessary to respect the clearances required for the proper functioning of the unit, allow the panel to open for filter cleaning, avoid obstacles that disrupt airflow, and ensure reasonable access for future HVAC maintenance.
At AirGreen, we are used to working in this kind of already developed residential environment. The goal is not just to install the device on the wall, but to do so in a durable, logical, and clean way.
The advantages of the GREE FREE MATCH R32 system
The model GREE FREE MATCH R32 is a multi-zone solution appreciated for its versatility. In this installation in Montreal East, its main advantage was to allow independent management of two zones without having to install two separate outdoor units. This reduces outdoor clutter, simplifies system integration, and improves the overall appearance of the installation.
Among the concrete advantages of this configuration:
- 2 independent zones for better comfort control;
- 2 wall-mounted heads suited for separate spaces;
- a single outdoor unit, more discreet and easier to integrate;
- an inverter operation that adjusts according to demand;
- the use of refrigerant R32, combined with better energy efficiency than many older refrigerants;
- a solution adapted to houses, condos, and apartments in Montreal, Laval, Longueuil, the North Shore, and the South Shore;
- a good balance between comfort, installation cost, and flexibility.
This combination makes the system particularly useful for homes where needs are not uniform from one room to another. Rather than oversizing a single zone or forcing air to circulate throughout the entire house, the DoubleZone system allows for a more precise response.
Air diffusion designed for daily comfort
The position of a wall unit directly influences comfort quality. In the photo, the unit is installed above an opening, in a space that allows airflow towards the room without being immediately blocked by a tall piece of furniture or a partition. This is an important choice because the air must be able to mix effectively with the ambient air.
A common mistake in less thoughtful installations is to place a wall unit only where mechanical access is easiest. This approach can reduce installation time, but it does not always provide the best result for the client. At AirGreen, we seek the best compromise between:
- diffusion performance;
- technical feasibility;
- interior aesthetics;
- ease of access for maintenance;
- condensation management;
- refrigeration and electrical routing;
- comfort felt in the areas used daily.
In a residence in East Montreal, where spaces can be compact, this analysis becomes even more important. A unit that is too low, too close to an obstacle, or too oriented towards an occupied area can create discomfort. Conversely, a well-placed unit quickly becomes discreet in daily use.
The challenge of interior finishing
The installation shown in the photo is located in a finished space, with a painted ceiling, light wall, recessed lighting, and existing elements. This context requires a clean working method. Surfaces must be protected, openings must be precise, and the wall unit must be perfectly aligned for the final result to be acceptable both technically and visually.
A wall-mounted heat pump is a device occupants see every day. Its alignment, height, and integration therefore have real importance. In this project, the GREE unit was installed to remain discreet while allowing good accessibility to the front panel and filters.
Drain management: a crucial element in a wall-mounted installation
In cooling mode, a heat pump removes moisture from the air. This condensation must be properly drained. In wall-mounted installations, especially when done in compact indoor areas, the drain path must be carefully planned.
Poor drainage can cause noise, backflow, leaks, or water accumulation. That’s why we pay special attention to the slope, the outlet point, protection against outdoor conditions, and ease of inspection. When gravity drainage is possible, it is generally preferred. When the building’s layout does not allow it, a mechanical solution can be considered.
In a DoubleZone installation, this planning must be repeated for each indoor head. Each zone must have reliable drainage suited to its location.
Refrigerant connections: the invisible part of the final result
The GREE FREE MATCH R32 system relies on precise refrigerant connections between the outdoor unit and the two indoor heads. Even though these elements are barely visible once the work is completed, they are at the heart of the system’s performance.
The lines must be properly routed, insulated, and protected. Connections must be made with precision. The commissioning must confirm that the system operates correctly, that communications between units are stable, and that both zones respond to commands.
In the field of HVAC, the quality of installation directly affects the equipment's lifespan. A high-performance machine that is poorly installed will never deliver its full potential. That’s why AirGreen places as much importance on execution as on the choice of the device.
Why a DoubleZone system can be preferable to two separate systems
Some homeowners sometimes consider two independent wall systems to treat two zones. This option can be relevant in some cases, but a DoubleZone configuration offers several advantages when the house is suitable.
It notably helps reduce the number of outdoor units, which can be important in the dense neighborhoods of East Montreal, where outdoor space is sometimes limited. It also simplifies the exterior appearance and can facilitate overall system management. For customers who want a more integrated solution, multizone is often an excellent option.
That said, a DoubleZone solution must be properly sized. It is necessary to consider the surface areas, insulation, sun exposure, number of occupants, usage habits, and the distance between indoor units and the outdoor unit.
A solution adapted to the realities of Greater Montreal
Air conditioning and heating needs are not the same everywhere. In Montreal, many homes have space constraints and shared walls. In Laval, single-family homes with finished basements and upper floors are common. In Longueuil, duplexes, triplexes, and renovated houses often require more complex technical layouts. On the North Shore and the South Shore, properties may offer more outdoor space but present other constraints related to distance or architecture.
Our experience in all these regions allows us to tailor our recommendations. The GREE FREE MATCH R32 is not chosen the same way for a small apartment, a split-level house, a condo, or a bungalow. The model, number of heads, positioning, and installation path must always be adapted to the building.
What the customer gains daily
After installation, the customer benefits from better comfort control in two distinct zones. In summer, the DoubleZone heat pump helps reduce accumulated heat while decreasing indoor humidity. During cooler periods, it can also contribute to heating, depending on conditions and needs.
The comfort achieved is more precise than with a single wall unit placed in a central area. Each indoor unit can respond to the demand of its space, which improves the occupants' experience. In a residence occupied by several people, this flexibility is often highly appreciated, as not everyone uses the rooms in the same way or at the same times.
Subsidies and potential eligibility
Subsidy programs for heat pumps can represent a significant financial advantage for owners. However, eligibility always depends on the exact model, the installed combination, current criteria, and the documentation available at the time of the application.
For a system like the GREE FREE MATCH R32, it is important to validate the information specific to the installed outdoor-indoor combination. At AirGreen, we support our clients by providing the necessary documents after installation and explaining the usual steps for applicable requests.
This approach avoids misunderstandings. A system can be efficient without necessarily automatically qualifying for a specific subsidy. Prior verification remains essential.
Mistakes to avoid before installing a DoubleZone heat pump
Choosing based on price alone
Price is important, but it should not be the only criterion. A cheaper system that is poorly suited or poorly installed can cost more in the long run in discomfort, repairs, or consumption.
Neglecting the placement of indoor units
Indoor units must be placed according to air circulation, lifestyle habits, and technical constraints. Poor placement can reduce system efficiency.
Underestimating the importance of drainage
A visually clean installation can become problematic if the drain was not properly planned. Condensation must always be managed rigorously.
Ignoring maintenance
Filters must be cleaned regularly, and periodic HVAC maintenance helps maintain the device's efficiency. A well-maintained multi-zone system retains better performance and offers a longer lifespan.
The AirGreen approach to multi-zone installations
At AirGreen, we approach every heat pump installation as a complete project. We analyze needs, constraints, possible routes, locations, client expectations, and technical requirements. This method allows us to avoid improvised solutions and deliver a coherent result.
In this project in Montréal-Est, the installation of a GREE FREE MATCH R32 DoubleZone heat pump was designed to meet concrete needs: improve comfort in two zones, preserve interior appearance, limit outdoor clutter, and ensure a reliable installation.
The wall unit visible in the photo reflects this approach: a well-aligned device, installed in a constrained space, with attention paid to air distribution, maintenance access, and integration into the room.
An installation that reflects the real needs of the owners
This project shows why DoubleZone systems are becoming increasingly popular in Greater Montréal. Owners don’t just want a more powerful machine; they want a solution adapted to their home, their routine, their budget, and their daily comfort.
The GREE FREE MATCH R32 meets this need thanks to its flexibility and its ability to handle multiple zones with a single outdoor unit. In a city like Montréal-Est, where space often needs to be used smartly, this approach offers an excellent balance between performance, discretion, and efficiency.
For owners in Montréal, Laval, Longueuil, the North Shore, and the South Shore, this installation is a good example of a well-thought-out project: a multi-zone solution, a clean installation, a thoughtful location, and professional execution adapted to the building's realities.
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 room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
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.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
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).