Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Sainte-Julie: a neatly integrated 2-zone solution for precise comfort in the home
AirGreen installs a GREE FREE MATCH R32 DoubleZone heat pump in Sainte-Julie: 2 zones, 2 wall units, precise comfort, and clean indoor integration on the South Shore.
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 DoubleZone installation in Sainte-Julie where the indoor location made all the difference
In Sainte-Julie, on the South Shore, our AirGreen team completed the HVAC installation of a GREE FREE MATCH R32 DoubleZone heat pump, a 2-zone setup with 2 wall-mounted heads designed to offer better distributed comfort throughout the house. This type of project perfectly illustrates the reality of many Quebec residences: cooling and heating needs are not always concentrated in a single room, and a single wall-mounted head is not always enough to stabilize the temperature across all living spaces.
The provided photo shows one of the wall-mounted heads installed inside, positioned in a narrow space, high up near the textured ceiling and close to a side wall. This detail is important. In a wall-mounted heat pump installation, the choice of each head’s location is crucial to ensure good air distribution, avoid obstacles, respect technical clearances, and maintain a discreet finish. Here, the unit was installed in a precise architectural space, between two wall volumes, with clean alignment and optimized height.
The GREE FREE MATCH R32 model was particularly well suited for this project because it allows connecting two indoor units to a single outdoor unit. For the client, this means better comfort control in two distinct areas of the house without multiplying outdoor equipment. For our team, it meant careful planning of refrigerant lines, drains, electrical supply, and the positioning of each head.
A GREE FREE MATCH R32 solution adapted to homes on the South Shore
The GREE FREE MATCH R32 DoubleZone heat pump is designed for homeowners who want a flexible, efficient solution adapted to multiple living zones. In a house in Sainte-Julie, needs can vary significantly between the living room, bedrooms, basement, an office, or a family area. Some rooms receive more sunlight, others retain more humidity, and some areas quickly become uncomfortable when the outside temperature changes.
With a 2-head configuration, each zone benefits from more precise control. It’s not just a matter of BTU power: it’s about smart distribution of comfort. A well-installed heat pump must consider room orientation, ceiling height, natural air circulation, the presence of stairs, corridors, doors, windows, and dividing walls.
Why a DoubleZone heat pump was the right choice for this project
In this project in Sainte-Julie, the choice of a DoubleZone system met a concrete need: improving comfort in two distinct parts of the house while maintaining a clean, compact, and well-integrated installation. Rather than installing two independent systems, the GREE FREE MATCH R32 solution allows centralizing the outdoor unit and serving two indoor heads.
This approach offers several advantages:
- Two independent comfort zones, with adjustable temperature based on room usage.
- A single outdoor unit, more discreet and easier to integrate.
- Better usage efficiency, as each head operates according to the actual needs of its zone.
- Less temperature variation between rooms.
- A more flexible installation in homes without central ducts.
- A solution suited for renovations, extensions, and multi-story homes.
For many owners in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this type of system represents an excellent compromise between comfort, efficiency, and architectural integration.
A wall-mounted head installed in a confined indoor space
The image shows an important element of this installation: the GREE wall unit was installed in a specific space, near the ceiling and close to a wall return. This kind of location requires special attention. It is necessary to ensure that air can circulate properly, that the device’s front remains accessible for maintenance, that filters can be easily removed, and that the diffusion flap can operate without obstruction.
In a professional HVAC installation, we avoid positioning a wall unit solely based on available space. We also analyze the air behavior in the room. A unit installed too close to an obstacle can create poor air distribution, localized discomfort, or reduced efficiency. Conversely, a well-positioned unit can improve comfort throughout the area without having to run unnecessarily at full capacity.
In this specific case, the chosen location allowed maintaining a clean appearance without compromising air distribution. The result is neat: the indoor unit is aligned, discreet, well-centered in its space, and integrated into the existing configuration of the house.
Constraints related to low or textured ceilings
The photo also shows a textured ceiling relatively close to the wall unit. This detail may seem simple, but it influences the installation work. A wall unit must be installed with enough clearance to allow air intake from the top of the device. If placed too close to the ceiling, the system may lose efficiency, become noisier, or require more effort to reach the requested temperature.
Our technicians therefore had to validate the available height, the level of the device, the wall’s solidity, and the possible routing of lines behind or near the unit. In several homes on the South Shore, we encounter similar configurations: textured ceilings, narrow walls, spaces between two partitions, beams, architectural returns, or hard-to-reach corners.
The installer’s experience makes a big difference. A device installed a few centimeters too high, too low, or too close to an obstacle can affect comfort and future maintenance. At AirGreen, we always seek a balance between performance, accessibility, and aesthetics.
The GREE FREE MATCH R32: a versatile multi-zone technology
The GREE FREE MATCH R32 system is appreciated for its ability to power multiple indoor units from a single outdoor unit. In a DoubleZone configuration, it allows managing two spaces independently, which is particularly useful in homes where living habits vary from one room to another.
The refrigerant R32 is also an important element of this generation of equipment. It is used in several new heat pumps due to its energy properties and reduced environmental impact compared to some older refrigerants. However, its use requires rigorous installation carried out by qualified professionals.
During installation, our technicians ensure in particular that:
- respect the recommended refrigerant line lengths;
- perform proper vacuuming;
- check the tightness of connections;
- protect the lines and wiring;
- provide reliable condensate drainage;
- validate communication between indoor units and the outdoor unit;
- test each zone separately during startup.
These steps are essential to ensure the system’s durability. A poorly installed wall-mounted heat pump or DoubleZone may work initially but present performance, noise, drainage, or reliability problems in the medium term. This is precisely what we seek to avoid.
An installation designed for daily comfort
The comfort of a 2-zone system is not only measured on the first day of use. It is measured in daily life: in the morning, when some rooms are cooler; in the afternoon, when the sun warms a section of the house; in the evening, when occupants want a different temperature in a bedroom, living room, or office.
In this project in Sainte-Julie, the goal was to offer a solution capable of following these variations without imposing a uniform temperature throughout the house. Each wall-mounted head can be used according to the needs of the zone it serves. This flexibility is especially appreciated in families where schedules and comfort preferences are not the same for all occupants.
A well-designed DoubleZone installation also helps avoid costly habits, such as overheating an unused zone or air conditioning a room that doesn’t need it. The unit works more targetedly, which can contribute to better energy efficiency when the system is used correctly.
Mistakes to avoid with a 2-head heat pump
Many homeowners compare brands, models, and prices before choosing a DoubleZone heat pump. This is a good approach, but the choice of equipment is only part of the final result. The quality of the installation plays an equally important role.
Here are some common mistakes to avoid:
- choosing a capacity without assessing the actual house layout;
- installing heads in easy but ineffective locations;
- neglecting clearances above and around indoor units;
- forgetting access to filters for HVAC maintenance;
- poorly planning condensate drains;
- underestimating the length of refrigerant lines;
- placing the outdoor unit in a poorly ventilated space;
- ignoring the aesthetic impact of ducts and wall passages.
In the installation shown here, the indoor location required particular precision. The wall offered a limited installation area, but the unit still had to be positioned to ensure good air distribution. This kind of detail distinguishes a quick installation from a truly durable one.
The importance of maintenance to preserve performance
A well-installed GREE FREE MATCH R32 heat pump must also be well maintained. Wall-mounted heads draw in ambient air, filter particles, and redistribute heated or cooled air. Over time, filters can accumulate dust, pet hair, fine particles, and household residues. Regular cleaning helps preserve airflow, comfort, and efficiency.
For a 2-head installation, maintenance must be done on each indoor unit, not just the one used most often. The outdoor unit must also remain clear in all seasons, especially after snow accumulations, fallen leaves, or outdoor debris.
At AirGreen, we always explain to the customer the simple steps to take after installation. We also recommend periodic HVAC maintenance when the system is used intensively, especially in heating mode during the Quebec winter and in air conditioning during hot and humid periods.
A relevant solution for Sainte-Julie, Longueuil, and the entire South Shore
This installation in Sainte-Julie reflects a need we often observe on the South Shore: homeowners want to modernize their comfort without undertaking major central ventilation work. The GREE FREE MATCH R32 systems precisely meet this demand with a flexible, compact solution adapted to existing homes.
In Longueuil, Boucherville, Saint-Bruno-de-Montarville, Beloeil, Candiac, Brossard, and in several areas of the South Shore, houses often have layouts where a single wall-mounted head does not provide sufficient coverage. A DoubleZone solution then allows better distribution of heating and cooling, especially when rooms are separated or located on different levels.
We also carry out this type of installation in Montreal, Laval, and on the North Shore, where constraints are sometimes different: condominiums, party walls, balconies, narrow backyards, complex access, or building regulations. In each case, the approach remains the same: to propose a solution adapted to the building rather than a standard model applied without analysis.
An on-site quote to validate technical details
For a DoubleZone heat pump, an accurate quote requires a complete analysis. Photos help understand the space, but an on-site visit allows confirmation of essential elements: line lengths, distance between the heads and the outdoor unit, wall type, electrical access, drainage, clearances, outdoor location, and aesthetic constraints.
In a project like this, the interior positioning of the wall-mounted head plays a central role. The space available above the unit, the proximity of the walls, and the room layout influence performance. That is why our recommendations are always based on the reality of the building, not just on the area or the number of BTUs.
This method avoids unpleasant surprises and allows delivering a clean installation from the start. It also helps the client understand why one location is recommended, why another is less desirable, and how the system will offer the best possible performance.
A discreet, clean, and home-adapted final result
The visible result in the photo shows a well-integrated GREE wall unit, installed high up, in a precise architectural space. The device remains discreet, accessible, and correctly positioned to serve its zone. The whole corresponds to the approach we favor at AirGreen: a careful, technically solid, and visually clean installation.
The GREE FREE MATCH R32 DoubleZone heat pump installed in Sainte-Julie now offers a flexible comfort solution, with two independent zones and recent R32 technology. For the client, this means better temperature control, usage more adapted to lifestyle habits, and an installation that respects the home's appearance.
Why choose AirGreen for a GREE DoubleZone installation
Installing a 2-zone heat pump requires specific expertise. It is necessary to coordinate two indoor units, one outdoor unit, refrigerant lines, drains, electricity, communication between components, and the complete system startup. Every detail influences the final comfort.
At AirGreen, we support clients from Sainte-Julie, Montreal, Laval, Longueuil, the North Shore, and the South Shore with a clear and professional approach. We analyze the building, recommend the appropriate equipment, carefully carry out the installation, and explain the system’s operation after commissioning.
This project demonstrates that a successful installation depends not only on choosing a good brand. It relies on the right location, proper planning, and rigorous execution. The GREE FREE MATCH R32 DoubleZone installed here precisely meets this need: to offer customized comfort, in two zones, with a clean and durable integration.
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).