Installation of a GREE All Match Slim Duct R32 ducted heat pump in Plateau-Mont-Royal: Slim Duct system integrated into an open structure with custom ductwork

A GREE ducted installation in Plateau-Mont-Royal designed to preserve space, silence, and interior aesthetics

In Plateau-Mont-Royal, HVAC projects often require a more precise approach than in recent suburban construction. The buildings are varied, sometimes old, often renovated in stages, with limited ceilings, load-bearing walls to respect, condominium constraints, and high expectations for aesthetics. In this context, installing a GREE All Match Slim Duct R32 ducted heat pump becomes a particularly relevant solution for owners who want efficient comfort without adding a visible wall unit in the main rooms.

This AirGreen project perfectly illustrates the type of work behind a discreet installation. The photo shows the GREE indoor unit installed in a structural opening, with the exposed wood framing, filtration panels, and the technical space still accessible before the final closure. This stage of the construction is essential: it is the step where everything must be checked, aligned, reinforced, sealed, and planned for future HVAC maintenance. Once the finishing work is completed, the system will become much more discreet, but daily performance will directly depend on the quality of this preparation.

Unlike a wall-mounted heat pump, which blows air directly into a room, a Ducted System - Ducted Ducts - Slim Duct - Ductable distributes air through a network of ducts and grilles. The indoor unit is hidden in a false ceiling, a technical closet, a built-in wall space, or a service area, while only the supply and return vents remain visible. For an area like Plateau-Mont-Royal, where interior architecture matters a lot, this solution allows for comfort, efficiency, and visual discretion.

Why ducted systems are so interesting in Plateau-Mont-Royal buildings

Le Plateau-Mont-Royal presents typical challenges: narrow but deep housing, ceilings sometimes opened during renovations, brick walls, irregular interior divisions, interior stairs, exterior access constraints, and the need to preserve the character of the rooms. In this type of environment, it is rarely enough to choose a machine solely based on its BTU capacity. A system adapted to the actual building must be designed.

The ducted heat pump meets several common needs:

• to avoid the appearance of a wall unit in a renovated living room;
• to distribute air more evenly across several nearby zones;
• to integrate the equipment into an existing structure;
• to reduce direct drafts;
• to maintain a quieter atmosphere;
• to facilitate a cleaner interior finish;
• to offer a more centralized heating and air conditioning solution.

In this project, the open configuration allowed our technicians to position the GREE unit precisely before closing the walls. This step provided the opportunity to validate access, clearances, air return, duct routing, and connection details. The client wanted a serious, durable, and well-integrated solution without compromising the final appearance of their space.

GREE All Match Slim Duct R32: a solution suited for integrated installations

The GREE All Match Slim Duct R32 family is part of the ducted systems offered by AirGreen in Montreal, Laval, Longueuil, on the North Shore and the South Shore. It includes several capacities, such as 9,000 BTU, 12,000 BTU, 18,000 BTU, 24,000 BTU, 30,000 BTU, and 36,000 BTU, allowing the solution to be adapted to the real needs of each property.

The choice of model depends on several factors:

• the area to be served;
• the insulation of the dwelling;
• the number of connected rooms;
• the length of the ducts;
• the pressure losses;
• the desired noise level;
• the location of the outdoor unit;
• the available height in the technical space;
• the accessibility for filters and the drain.

The technology R32 is used on several recent models of this range. It offers a modern, efficient solution aligned with the new market expectations regarding energy performance. Some models may also be eligible for subsidy programs when the current criteria are met. At AirGreen, we always verify the exact model, the necessary documents, and the applicable conditions at the time of installation, as programs can vary depending on certification, capacity, and administrative updates.

An installation in an open structure: an important technical advantage

The photo shows a key moment: the unit is installed before the structure is fully closed. This situation offers a major advantage for our teams, as it allows working with full visibility of the available space.

Indoor unit alignment

The ducted unit must be installed in a stable, straight, and accessible manner. A slight misalignment can complicate duct connections, harm drainage, or create vibrations. In this project, the wooden structure allowed framing the unit while maintaining sufficient access to the main components.

Return air management

The return air is as important as the supply air. A ducted system can be very efficient, but if the return air is poorly designed, the flow becomes insufficient, noise increases, and performance drops. The panels visible in the photo remind us of the importance of this area: air must be able to return to the unit without excessive restriction.

Preparation of maintenance access

A hidden system must remain maintainable. This is a rule we systematically apply at AirGreen. It must be possible to access the filters, check the drain, inspect the connections, and intervene if needed. An installation that is too closed may seem more aesthetic at first, but it quickly becomes problematic during a service call.

Vibration reduction

The framing, fastenings, and clearances around the unit influence acoustic comfort. In a home in Plateau-Mont-Royal, where rooms can be close together and walls less acoustically insulated than in a recent building, this attention is essential. Our technicians ensure that the unit is installed in a way that limits the transmission of vibrations to the structure.

Static pressure, ducts, and air balance

A ducted HVAC installation is based on a seemingly simple principle: pushing air through ducts to the rooms. In practice, this operation requires real calculation. Every bend, every grille, every length of duct, and every transition creates resistance. This resistance must be compatible with the static pressure available from the unit.

The GREE range offers solutions in low static pressure and high static pressure. The right choice depends on the complexity of the network. A short network, with few outlets and direct ducts, can operate with lower pressure. A longer or more branched network sometimes requires higher pressure capacity.

In this project in Plateau-Mont-Royal, we paid special attention to three elements:

The most direct route possible

In an existing building, obstacles sometimes need to be bypassed. However, each detour can reduce flow. Our goal is always to create a route as logical and smooth as possible.

The quality of transitions

A poorly formed transition can cause turbulence, noise, and loss of efficiency. Connections must be clean, well sealed, and adapted to the shape of the ducts.

Balancing the outlets

Even with a good device, poor air distribution can create one room too cold and another too hot. Balancing allows for more consistent diffusion and more stable comfort.

Drainage: a discreet but essential detail

In cooling mode, a heat pump removes moisture from the air. This water must be reliably drained. In a wall-mounted installation, the drain is often visible or more direct. In a ducted system, it is often hidden within the structure, which requires stricter planning.

We check:

• the available slope;
• the length of the route;
• the presence or absence of a drainage pump;
• protection against backflow;
• access for future cleaning;
• the quality of connections;
• the risk of condensation around cold sections.

Poor drainage can cause shutdowns, odors, or damage to the building. In an area like Plateau-Mont-Royal, where many properties have undergone successive renovations, any improvisation in walls and ceilings must be avoided.

The outdoor unit and the constraints specific to Montreal

Although the photo mainly highlights the GREE indoor unit, the outdoor unit plays an equally important role. In Montreal, the outdoor location can be complex: alleys, balconies, narrow yards, condominium rules, limited clearances, noise control, and maintenance access to preserve.

At AirGreen, we always assess:

• air circulation around the outdoor unit;
• support stability;
• distances from walls and obstacles;
• the routing of refrigerant lines;
• noise level;
• service access;
• electrical requirements;
• protection against snow and ice buildup depending on the location.

The quality of this step influences the durability of the system. A poorly positioned outdoor unit can lose performance, generate more noise, or become difficult to maintain. That is why we consider the installation as a complete whole, not as two separate devices.

AirGreen expertise for GREE ducted systems in Montreal and Greater Montreal

Installing a GREE ducted system in Plateau-Mont-Royal requires a combination of field experience, technical rigor, and building understanding. This type of project is not just about choosing a device from a list. You need to read the space, anticipate constraints, and deliver a solution that works both on day one and after several seasons.

AirGreen is a GREE Elite dealer, which allows us to offer specialized expertise on GREE equipment, including All Match Slim Duct R32 systems, low and high static pressure models, as well as diagnostic and after-sales service procedures. This experience is especially useful for integrated projects, where every detail influences the final result.

The steps of our intervention on this project

1. Evaluation of the home and constraints

Before installation, we analyzed the building layout, available spaces, areas to be served, and possible duct routes. In a home in Plateau-Mont-Royal, this step is crucial because walls and ceilings do not always allow for a standard path.

2. Choice of the appropriate GREE system

We oriented the solution towards a Slim Duct configuration to achieve discreet, well-distributed comfort adapted to the space. The final capacity choice must always match the actual needs to avoid short cycles, excessive noise, or insufficient performance.

3. Installation of the indoor unit in the structure

The GREE unit was positioned in the designated opening, with particular attention to stability, clearance, service access, and future duct connections. This step is shown in the photo and represents one of the most important phases of the project.

4. Preparation of the duct network

The ducts must allow for efficient and quiet air circulation. We took into account static pressure, transitions, insulation, and the necessary balancing to achieve even distribution.

5. Commissioning checks

Once the connections are completed, our technicians verify the system's operation: blowing, return, drainage, noise, control, response of the outdoor unit, and overall performance. The commissioning confirms that the installation meets the customer's expectations and technical requirements.

Practical advice for owners considering a ducted system

A Ducted - Ducted Ducts - Slim Duct - Ductable system can be an excellent solution, but only if the project is well prepared. Here are the points we recommend considering before making a decision.

Do not underestimate the necessary space

Even if the unit is compact, ducts, air return, drain, and maintenance access must be planned. A solution that is too tight can harm future service.

Do not sacrifice access for appearance

A flawless finish should never prevent maintenance. It is better to integrate a discreet and well-placed access panel than to have to open a wall later.

Choose the device according to the duct network

BTU alone is not enough. Static pressure and duct configuration must guide the model choice.

Check subsidy eligibility before purchase

Programs can offer valuable assistance, but eligibility depends on the exact model and current criteria. AirGreen provides the necessary information to facilitate this process.

Entrust the installation to a qualified team

Refrigerants, electrical connections, drains, and ducts require professional work. Poorly executed installation can reduce efficiency, increase noise, and create problems that are difficult to fix after finishing.

A result designed to last

This project in Plateau-Mont-Royal demonstrates what we look for in every ducted installation: clean integration, reliable performance, thoughtful service access, and comfort that naturally fits into the client’s daily life. The unit visible in the structure represents a temporary stage of the worksite, but it shows the precision required before the system becomes discreet.

The GREE All Match Slim Duct R32 ducted heat pump is a particularly suitable option for customers who want a modern, efficient, and visually unobtrusive system. For properties in Plateau-Mont-Royal, Montreal, Laval, Longueuil, the North Shore, and the South Shore, it meets complex needs without compromising interior aesthetics.

At AirGreen, we handle the entire process: estimation, model recommendation, installation, connections, commissioning, client explanations, support for subsidy documents, and after-sales service. It is this comprehensive approach that transforms a technical installation hidden within the structure into stable, discreet, and lasting comfort.