Installation of a GREE All Match Slim Duct R32 Ducted System in Brossard – Slim Duct HVAC System for a Residence on the South Shore

A GREE ducted installation in Brossard where every duct had to be planned before startup

In Brossard, on the South Shore, we completed a particularly technical installation of a GREE ducted system, of the Slim Duct type, also called ducted conduit or ductable. This type of project requires a very different approach from a standard wall-mounted heat pump installation: here, performance depends as much on the machine as on the quality of the duct network, the plenum, the air return, balancing, and the precision of the assembly.

The installed system belongs to the family of GREE All Match Slim Duct R32 ducted heat pumps, a range offered by AirGreen for residential projects where the client wants uniform comfort without a visible wall unit in the main rooms. In this Brossard residence, the goal was clear: to integrate a discreet, efficient, and well-distributed HVAC solution while respecting the constraints of an already furnished interior space and the requirements of a clean installation.

The construction photo shows an important stage of the project: the GREE indoor unit being prepared with a custom-made and fitted metal plenum, equipped with several circular outlets intended for the distribution ducts. This kind of detail is not decorative. It determines how the air will be distributed throughout the house, the stability of the airflow, the noise level, and the comfort felt in the different zones.

At AirGreen, we treat ducted installations as design projects, not just equipment setups. Before connecting the refrigerant lines or finalizing the wiring, it’s essential to understand the building, the zones to be treated, possible paths for the ducts, the available static pressure, and future access for HVAC maintenance.

Why a ducted system was relevant for this residence in Brossard

Brossard includes several types of properties: single-family homes, renovated buildings, condominiums, extensions, open spaces, and residences where interior aesthetics are a priority. In this context, a ducted system often becomes a very interesting option for clients who want to avoid the appearance of a wall air conditioner while benefiting from a high-performance heat pump.

The ducted solution allows hiding the indoor unit in a technical space, ceiling, false ceiling, or service area, then distributing air through ducts to several rooms. The desired result is simple: comfort is felt, but the equipment remains discreet.

For this project in Brossard, the choice of a GREE Slim Duct system met several concrete needs:

• preserve the appearance of main rooms;
• distribute air to several zones rather than concentrating airflow at a single point;
• limit temperature variations between rooms;
• obtain a heating and air conditioning solution adapted to daily life;
• maintain reasonable access for service and maintenance;
• use a recognized range of equipment for integrated installations.

The GREE range available at AirGreen includes several capacities, notably 9,000 BTU, 12,000 BTU, 18,000 BTU, 24,000 BTU, 30,000 BTU, and 36,000 BTU, depending on configurations and building needs. This variety allows selecting a machine suited to the actual load, rather than a device chosen solely based on approximate area.

The metal plenum: a central component of comfort

On this site, one of the most important elements was the distribution plenum. It is clearly visible on the indoor unit: a custom-fitted metal box with several round outlets intended for the ducts. This part plays an essential role in the performance of a ducted system.

The plenum receives the air treated by the indoor unit, then distributes it to the ducts. If its design is neglected, several problems can arise: uneven airflow, excessive noise, pressure losses, areas that are too hot or too cold, reduced efficiency. Conversely, a well-sized plenum contributes to more even distribution and more stable operation.

In this installation in Brossard, our team paid particular attention to:

• alignment of duct outlets;
• sealing of metal joints;
• assembly solidity;
• reduction of air turbulence;
• ease of connection to flexible or rigid ducts;
• compatibility with the system's static pressure;
• limiting pressure losses.

These details are particularly important on the South Shore, where many renovated houses have space constraints. A good installer must work with the existing structure without compromising system performance.

Low or high static pressure: a choice that is not made randomly

The GREE ducted systems offered by AirGreen include options in low static pressure and high static pressure, depending on the duct network configuration. This distinction is important because it directly influences the fan's ability to move air through the network.

An installation with short ducts, few bends, and few outlets can often operate with a low static pressure solution. A longer network, with several branches, more distant diffusers, or architectural constraints, may require a higher static pressure configuration.

In this project in Brossard, our analysis focused on the reality of the network: number of outlets, duct routes, available space, branch lengths, and expected comfort level. The goal was not only to make the machine work but to ensure a consistent airflow in the targeted areas.

A poorly sized ducted system can give the impression of low performance even if the machine itself is of good quality. That is why our work always begins with design, site observation, and technical validation.

An indoor installation that requires precision and method

The GREE indoor unit photographed is being prepared before its final integration. You can see the construction environment: tools, fastening parts, protective materials, floor panels, and metal components. This step is normal in a ducted project, as several adjustments must be made before the system is closed and put into operation.

Unlike a wall-mounted installation, where the indoor unit is visible and directly accessible, a Slim Duct system must be designed to remain accessible despite its integration. This means we plan access to the filter, connections, condensate drain, service components, and inspection panels.

During this project, our technicians worked with a precise sequence:

1. validation of the indoor unit location;
2. preparation of the plenum and duct outlets;
3. verification of necessary clearances;
4. mechanical duct connections;
5. air return planning;
6. refrigerant line routing;
7. drain connection;
8. electrical installation according to model requirements;
9. functionality tests;
10. explanations to the client after commissioning.

Each step influences the next. A poorly positioned plenum can complicate duct connections. A poorly planned drain can create leakage risks. Too limited service access can make future maintenance difficult. That is why our teams take the time to properly finalize details before closing the site.

The role of R32 in the GREE All Match Slim Duct series

The GREE All Match Slim Duct R32 series uses the refrigerant R32, found in many modern air conditioning and heating units. This technology aligns with improved energy efficiency and design adapted to recent systems.

However, the use of R32 requires professional installation. Refrigeration connections, vacuuming, leak tests, adherence to manufacturer procedures, and commissioning must be carried out rigorously. A ducted heat pump should never be considered a generic device. The quality of the installation work directly affects performance, comfort, durability, and safety.

At AirGreen, our refrigeration technicians understand the requirements of this type of system and apply best practices for residential installations in Brossard, Longueuil, Montreal, Laval, on the North Shore and the South Shore.

An AirGreen project focused on integration, airflow, and durability

The specific challenges of this installation in Brossard

The main challenge of this project was interior integration. A ducted system requires more planning space than a wall unit. Consideration must be given to available height, duct passage, grille position, air return, and noise level.

In this residence, our team had to assemble a network capable of serving the planned zones without creating excessive constraints on the machine. The multi-outlet plenum was therefore carefully made to allow orderly distribution. Each outlet had to be positioned to facilitate connection and reduce unnecessary elbows.

Elbows, abrupt reductions, and overly long ducts can harm airflow. This is especially true in ducted systems where static pressure must remain controlled. Our role is to avoid these errors before they become hidden in the structure.

The air return: an often underestimated aspect

A good distribution system does not only work with air outlets. It must also properly take back the air. The air return is essential for the indoor unit to process a sufficient volume and maintain a stable temperature.

An air return that is too small or poorly placed can cause several problems:

• suction noise;
• performance drop;
• less efficient operating cycles;
• discomfort in certain rooms;
• unbalanced pressure;
• faster accumulation of dust on certain components.

For this HVAC installation in Brossard, the planning of the air return was an integral part of the design. Our approach always aims for a balanced system, not just a duct network that looks complete visually.

Acoustic comfort: a major criterion in Slim Duct systems

One of the advantages sought with a GREE Slim Duct is discreet comfort. However, this discretion directly depends on the quality of the installation. An improperly sized duct or a poorly chosen grille can produce disturbing air noise, even with a good machine.

We therefore paid attention to the air velocity, metal transitions, the shape of the plenum, and the duct path. The goal was to achieve effective diffusion without the sensation of excessive drafts or unnecessary noise.

This point is especially important for bedrooms, home offices, and family spaces. Many customers in Brossard are looking for a system that improves comfort without drawing attention. A well-designed ducted system meets this expectation very well.

Heating down to low temperatures depending on the model

Some ducted GREE models offered by AirGreen are designed to provide heating performance suited to Quebec winters, with operating capacities down to -30 °C depending on the model. This feature is important for homeowners who want to reduce their dependence on traditional heating systems or better manage their comfort during cold periods.

However, the right equipment combination must be chosen. Heating performance depends on the exact model, capacity, indoor-outdoor pairing, installation conditions, and the quality of commissioning. At AirGreen, we validate these elements before recommending a solution.

For customers in Montreal, Laval, Longueuil, Brossard, the North Shore, and the South Shore, this validation step is essential. Needs are not the same in a well-insulated house, a residence with large windows, a multi-story property, or a renovated space with partially closed ceilings.

Subsidies and eligibility: check according to the installed model

Many customers shopping for a heat pump or an HVAC system are interested in available subsidies. Some GREE systems may be eligible for financial aid programs depending on their certification, performance, and the exact pairing of units.

For a ducted system, it is important not to rely solely on the series name. Eligibility must be confirmed with the exact model numbers, capacity, applicable certification, and criteria in effect at the time of installation. Two similar systems can have different results depending on their combination.

At AirGreen, we help our clients understand the necessary information and keep useful documents after installation. This rigor prevents unpleasant surprises and facilitates procedures when the installed system is eligible.

Why this installation is a good example of AirGreen’s expertise

A successful ducted installation relies on several skills at once: refrigeration, ventilation, electricity, building reading, duct fabrication or adaptation, commissioning, and communication with the client. This project in Brossard clearly illustrates this reality.

The client didn’t just need a machine. They needed a solution integrated into the home, capable of distributing air properly, remaining accessible for maintenance, and operating reliably. This is precisely the type of project where AirGreen’s experience makes a difference.

As a GREE Elite dealer, we regularly work with the brand’s ducted ranges, including low and high static pressure systems as well as the All Match Slim Duct R32 series. This specialization allows us to better guide customers toward the right configuration rather than offering an approximate solution.

Mistakes to avoid before installing a ducted system

Homeowners considering a ducted system in Brossard or elsewhere on the South Shore should pay attention to several points before signing a quote.

Choosing a unit without analyzing the ducts

BTU capacity is not enough. The distribution network must also be checked. A well-chosen unit can perform poorly if the ducts are too restrictive.

Neglecting filter access

A filter that is hard to access will be less well maintained. In the long term, this can harm airflow and performance.

Installing too many outlets without balancing

Adding multiple outlets does not guarantee better comfort. Each outlet must receive an appropriate airflow.

Underestimating condensate drainage

Poor management of condensation water can cause damage. The drain must be planned from the start.

Ignoring noise levels

The noise from a ducted system often comes from the duct network, not just the machine. Acoustic design must be taken seriously.

Comparing prices only

Two quotes for a ducted system may seem similar but can differ greatly in the quality of the plenum, balancing, ducts, service access, and commissioning.

Practical advice for Brossard homeowners

Before installing a GREE All Match Slim Duct R32, it is useful to prepare some information:

• rooms to heat and cool;
• current comfort issues;
• zones that are too hot or too cold;
• possible location of the indoor unit;
• access to ceilings, attics, or technical spaces;
• noise expectations;
• the presence of an existing heating system;
• aesthetic constraints;
• priorities related to subsidies and energy efficiency.

With this information, our team can recommend a more precise solution. At AirGreen, we prefer to clearly explain the options rather than push a single configuration. In some cases, a wall system is sufficient. In others, the ducted system becomes clearly more logical. For this installation in Brossard, the GREE Slim Duct matched the client’s expectations and the building’s constraints very well.

A durable solution for residential comfort on the South Shore

At the end of a project like this, the value of the installation is measured in the details that are no longer visible: well-connected ducts, solid plenum, balanced airflow, reliable drain, planned maintenance access, properly commissioned unit. The client sees a comfortable home and a discreet installation, but behind this result is precise technical work.

This project in Brossard demonstrates the appeal of GREE ducted systems for homeowners who want an integrated, efficient HVAC solution tailored to their home. The GREE All Match Slim Duct R32 system meets needs that wall units don’t always cover with the same discretion.

For AirGreen, this type of installation perfectly represents our approach: properly assessing, smartly designing, cleanly installing, and supporting the client with clear explanations. Whether in Brossard, Longueuil, Montreal, Laval, on the North Shore or the South Shore, we adapt each project to the building’s reality and the client’s expectations.