Installation of a GREE CLIVIA R32 wall-mounted heat pump in Sainte-Marthe-sur-le-Lac: a compact and efficient solution for a house with a narrow inner courtyard
AirGreen installs a GREE CLIVIA R32 wall-mounted heat pump in Sainte-Marthe-sur-le-Lac in a narrow yard, with a clean, efficient, and building-appropriate HVAC solution.
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An HVAC installation designed for a complex outdoor space, without compromising on comfort
In Sainte-Marthe-sur-le-Lac, our AirGreen team recently installed a GREE CLIVIA R32 wall-mounted heat pump, a wall-mounted air conditioner – mini-split type system, in a particularly interesting residential configuration: a narrow interior courtyard, bordered by a metal structure, a balcony, a brick facade, and limited clearance around the outdoor unit.
This type of project perfectly illustrates what distinguishes a simple equipment installation from a truly well-planned HVAC installation. In a house where available outdoor space is restricted, every detail counts: the location of the outdoor unit, air circulation, future access for HVAC maintenance, protection of refrigerant lines, aesthetics of the installation, solidity of the wall mount, and adherence to recommended technical distances.
In the photo of this installation, the particularity of the site is immediately noticeable: the GREE outdoor unit is installed near a recessed entrance, under a balcony structure and close to a metal staircase. This configuration required very precise attention to the ventilation of the appliance. An outdoor heat pump must be able to efficiently expel and absorb air. A poor position, too confined or too close to an obstacle, can reduce efficiency, increase perceived noise, and complicate maintenance interventions.
Our objective was therefore clear: to install the GREE CLIVIA R32 safely, efficiently, and durably, while respecting the architectural constraints of this property in Sainte-Marthe-sur-le-Lac.
Why the GREE CLIVIA R32 was the right choice for this property
The GREE CLIVIA R32 is a popular choice for homes seeking a good balance between comfort, efficiency, reliability, and discretion. As a mini-split installation, this model effectively air conditions a targeted area of the house, while offering heating capacity adapted to the needs of many Quebec homeowners.
The R32 refrigerant is also an important point. Compared to older generations of refrigerants, R32 is known for its better thermal performance and reduced environmental impact in modern residential applications. For homeowners in Sainte-Marthe-sur-le-Lac, as well as those in Montreal, Laval, Longueuil, the North Shore and the South Shore, this type of equipment represents a serious option when wishing to modernize indoor comfort without installing central ducts.
In this project, the GREE CLIVIA R32 met several concrete needs:
- improving the comfort of a main area of the house;
- offering a high-performance air conditioning solution during hot periods;
- adding an efficient heating source in mid-season and during colder periods;
- limiting outdoor bulk thanks to a compact unit;
- integrating the equipment into an already architecturally busy space;
- maintaining reasonable access for maintenance and service.
A narrow courtyard: the real challenge of this installation in Sainte-Marthe-sur-le-Lac
One of the most important aspects of this installation was the outdoor environment. Unlike an open facade or an open backyard, this project presented several visible constraints:
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A metal structure above and to the side
The presence of the staircase and balcony required a precise analysis of the clearance around the outdoor unit. -
A brick wall and a white foundation section
These surfaces influence the mounting, conduit routing, and aesthetic finish. -
A low window nearby
It was necessary to avoid any positioning likely to obstruct access, view, opening, or maintenance of this area. -
A recessed space
Installations in English courtyards, secondary entrances, or semi-enclosed areas require increased attention to air and water drainage. -
More difficult technical access than an open facade
Technicians must plan not only the initial installation, but also future access for cleaning, diagnosis, inspection, or component replacement.
At AirGreen, we never choose the location of an outdoor unit solely based on what seems practical at first glance. We analyze the entire context: orientation, air circulation, noise, access, solidity of the support, proximity of openings, drainage, and protection of components.
In this specific case, the unit had to be positioned so as to remain stable, well-ventilated, and accessible, despite the presence of the metal staircase and balcony. An installation too close to an obstacle could have caused recirculation of hot air in summer or cold air in winter, reducing the efficiency of the wall-mounted heat pump. Our team therefore took care to maintain functional clearance around the appliance.
A robust wall installation adapted to building constraints
The outdoor unit was installed on a robust wall bracket, fixed so as to ensure good stability of the equipment. In regions like Sainte-Marthe-sur-le-Lac, where freeze-thaw cycles, snow, rain, and humidity are frequent, the quality of the fastening is essential.
A poorly installed support can lead to vibrations, unwanted noise, premature wear, or gradual sagging. This is why our technicians take the time to check the structure, surface type, alignment, and capacity of the support before finalizing the installation.
Wall mounting offers several advantages in this type of configuration:
- it frees up floor space;
- it better protects the unit against snow accumulation;
- it facilitates water drainage around the area;
- it limits certain risks related to debris, leaves, or dirt at ground level;
- it allows for a cleaner finish when space is restricted.
The photo also shows a concern for visual integration. The appliance is placed in a functional area, without dominating the entire courtyard. In a property where outdoor spaces are close together, this aspect is very important for owners.
Conduit routing: precision, sealing, and clean finish
A wall-mounted air conditioner or wall-mounted heat pump installation relies on much more than just positioning the indoor and outdoor units. The routing of refrigerant lines, communication wiring, and drainage is a central element for the system's durability.
In this project, the routing had to be carefully planned in order to:
- reduce unnecessary conduit length;
- protect the lines from shocks and weather;
- ensure adequate slope for condensate drainage;
- preserve the aesthetic of the facade;
- avoid vulnerable areas around the window and metal structure;
- maintain reliable sealing at the building penetration point.
A common mistake in less rigorous installations is neglecting the sealing of the wall penetration. In Quebec, this negligence can cause air, water, or humidity infiltration, particularly during wind-driven rains or freeze-thaw cycles. At AirGreen, every penetration is treated with care, because a good HVAC installation must protect both the appliance's performance and the building envelope.
Performance, comfort, and energy efficiency in everyday life
The GREE CLIVIA R32 is designed to offer stable comfort thanks to inverter technology, which allows the appliance to modulate its operation rather than simply operating through abrupt on-off cycles. For occupants, this modulation translates into a more regular temperature, fewer uncomfortable variations, and better energy consumption management.
In a home in Sainte-Marthe-sur-le-Lac, this difference is particularly noticeable during transition periods: cool springs, humid autumns, cool evenings after hot days. The heat pump can then take over efficiently, without necessarily relying as much on the main heating system.
Concrete benefits for the owner include:
- rapid and uniform cooling of the targeted area;
- efficient heating in mid-season;
- better control of indoor temperature;
- potential reduction in reliance on more expensive heating systems depending on use;
- discreet operation when the installation is well-positioned;
- a ductless solution suitable for existing homes.
In Montreal, Laval, Longueuil, on the North Shore and South Shore, we are seeing more and more owners choose this type of system to improve the comfort of a floor, an apartment, an extension, a home office, or an open-concept area.
What this installation reveals about the importance of an experienced HVAC contractor
The location of the outdoor unit: a decision that influences everything
For many clients, the location of the outdoor unit seems to be a simple matter of available space. In reality, it is one of the most important decisions of the project. A unit placed in a poorly ventilated area, too close to a wall, balcony, or metal structure, can lose efficiency.
In this installation in Sainte-Marthe-sur-le-Lac, the space under the balcony required precise technical interpretation. Three common mistakes had to be avoided:
Installing the unit too close to an obstacle
Insufficient clearance hinders air circulation. The appliance may then work harder, consume more, and offer reduced performance.
Neglecting access for maintenance
A difficult-to-access appliance is often less well maintained over the years. However, good HVAC maintenance extends the lifespan of the heat pump and preserves its efficiency.
Ignoring the sound environment
In a narrow courtyard, hard surfaces like brick, metal, and concrete can reflect sound. A well-designed installation helps reduce nuisances and maintain acceptable acoustic comfort.
A professional finish that protects the investment
On an installation like this, the finish is as important as the performance. Conduits must be protected, fixings must be solid, openings must be sealed, and the whole must remain visually clean.
A mini-split system is a long-term investment. It must withstand Quebec winters, heavy rains, summer heat, vibrations, and normal wear and tear. This is why AirGreen places so much importance on details that are not always immediately visible, but which make a big difference after several years of use.
Subsidies and eligibility: a point to check before installation
Several models of wall-mounted heat pumps may be eligible for financial assistance programs based on their certifications, efficiency, and the criteria in effect at the time of installation. For owners in Sainte-Marthe-sur-le-Lac as elsewhere in Greater Montreal, it is important to check the eligibility of the specific model, its capacity, its certification number, and the requirements of the applicable program.
At AirGreen, we regularly assist our clients in understanding available subsidies. We provide relevant information on the invoice and documents related to the equipment to facilitate the process when the installed model is eligible.
This step is often overlooked by owners who only compare the purchase price. However, a heat pump eligible for financial aid can represent significant savings, especially when the installation is carried out correctly by a qualified company.
Practical advice for homeowners with an interior courtyard or restricted space
This GREE CLIVIA R32 installation in Sainte-Marthe-sur-le-Lac provides several useful lessons for owners considering a similar installation.
Have the space evaluated before choosing equipment
A high-performance model does not reach its full potential if the outdoor location is not suitable. A technical visit confirms clearances, conduit routing, and access constraints.
Do not underestimate outdoor ventilation
Even a compact unit needs air. In a narrow courtyard, it is necessary to avoid areas where expelled air could be re-aspirated by the appliance.
Think about winter from the start
Snow, ice, and water must be taken into account. A well-positioned wall installation helps protect the unit and maintain more reliable operation.
Plan for future maintenance
An inaccessible appliance quickly becomes problematic. Sufficient access must be maintained for coil cleaning, electrical checks, diagnostics, and service interventions.
Choose a contractor accustomed to buildings in Greater Montreal
Homes in Montreal, Laval, Longueuil, the North Shore, and the South Shore often present challenges: alleys, balconies, co-ownerships, high foundations, window wells, brick walls, municipal regulations, or co-ownership requirements. Local experience is a real advantage.
AirGreen's experience with similar installations
We regularly carry out installations of wall-mounted heat pumps in contexts where space is limited. In Montreal, this might be a narrow backyard in a duplex. In Laval, a side wall with little clearance. In Longueuil, a garden-level apartment. On the North Shore, a house with a low balcony. On the South Shore, a property where the outdoor unit must be placed without obstructing access.
In each of these cases, our approach remains the same: understand the client's actual use, analyze building constraints, recommend appropriate equipment, and perform a durable installation.
For this property in Sainte-Marthe-sur-le-Lac, the installation of the GREE CLIVIA R32 combined efficiency, discretion, and adaptation to a complex space. The result is a reliable comfort solution, meticulously installed, in an area where every inch had to be used intelligently.
An installation that improves comfort without transforming the home
One of the great advantages of a wall-mounted air conditioner – mini-split system is its ability to modernize a residence's comfort without major invasive work. There is no need to install a duct network. Wall penetration is limited, the indoor unit is discreet, and the outdoor unit can be integrated into the existing architecture when the project is well-planned.
For the owner, this means less disruption, generally quick installation, and a tangible result from the moment it's switched on. Once tests are completed, our technicians check the air conditioning and heating operation, pressures, drain flow, communication between units, and basic remote control settings.
We also take the time to explain good usage practices to the client: filter cleaning, mode selection, temperature setting, clearance around the outdoor unit, and the importance of periodic maintenance.
Why entrust this type of project to AirGreen
An installation like this requires a combination of skills: refrigeration, electricity, wall mounting, building assessment, aesthetic planning, and understanding client needs. At AirGreen, we are accustomed to working in complex residential environments, where execution quality makes all the difference.
Our team operates throughout Greater Montreal, including Montreal, Laval, Longueuil, the North Shore, and the South Shore, with an approach focused on precision, transparency, and after-installation service. We don't just install a machine: we offer a solution adapted to the property, daily use, and real-world constraints of the site.
This installation of a GREE CLIVIA R32 wall-mounted heat pump in Sainte-Marthe-sur-le-Lac is an excellent example. In a restricted outdoor space, under an existing structure, and near a brick facade, our team successfully carried out a clean, solid, and functional installation, designed to provide reliable comfort for many years.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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).