A GREE ducted heat pump precisely installed in a Montreal residential environment
In the Mercier–Hochelaga-Maisonneuve borough, in Montreal, our AirGreen team completed a full HVAC installation of a ducted heat pump GREE All Match Slim Duct R32, a solution designed to offer discreet comfort through integrated ducts. This project perfectly illustrates the type of installation found in many Montreal residential neighborhoods: a house with a mixed facade, exterior cladding, limited landscaping space, existing electrical constraints, and the need to integrate the equipment without harming the building's appearance.
The on-site photo shows the GREE outdoor unit installed on wall mounts, near a pale-clad wall, a window, an electric meter, and landscaping. This type of configuration requires careful planning. The outdoor unit must be stable, accessible, well cleared for air circulation, and installed to limit vibrations. At the same time, refrigerant lines, wiring, and protections must be routed neatly without compromising the property's aesthetics.
Unlike a classic wall-mounted heat pump, a ducted installation is based on a different logic: the indoor unit is hidden in a technical space, a ceiling, an accessible attic, or an area designed for ducts, while the air is distributed through grilles or diffusers. Outside, the compressor remains visible, but its positioning and finish play a crucial role in the overall quality of the project. In this project in Mercier–Hochelaga-Maisonneuve, we paid as much attention to the outdoor unit as to the indoor network, because a good HVAC system must be consistent from start to finish.
Why choose a ducted heat pump in Mercier–Hochelaga-Maisonneuve
Houses in Mercier–Hochelaga-Maisonneuve often present particular challenges: renovated interior spaces, already occupied walls, long rooms, ceilings with drops, open areas, rear extensions, narrow side access, and close neighbors. In this context, a ducted system can be much more appropriate than a visible wall unit.
The client was looking for a solution that would allow heating and air conditioning of the space while maintaining a more understated interior finish. A wall unit would have imposed a visual presence in the main room. The choice of a GREE All Match Slim Duct R32 allowed for integrated air diffusion, more uniform and less intrusive.
This approach is particularly suitable for homeowners who want to:
- keep walls free for interior layout;
- avoid a visible unit in the living room or bedroom;
- improve air distribution between multiple zones;
- reduce temperature differences near windows;
- obtain a solution compatible with a renovation project;
- preserve the aesthetic value of the house;
- benefit from a system designed for the Quebec climate.
In Montreal, this type of request often comes up in neighborhoods where homeowners modernize their homes without wanting to change the appearance of their rooms. We find similar needs in Laval, Longueuil, on the North Shore and the South Shore, but the constraints of the island of Montreal make design quality even more important.
The outdoor unit: a location chosen for stability, access, and air circulation
The installation of the outdoor unit visible in the photo required special attention. The available space is located between a traffic area, a window, an electric meter, and landscaping. Our team therefore had to meet several criteria at once: ensure adequate clearance, avoid blowing obstacles, maintain service access, and integrate connections neatly.
The unit was installed on solid wall mounts, which keeps it above ground level. This method is often advantageous in Montreal, especially when the yard is landscaped, the ground is uneven, or snow accumulation must be taken into account. By keeping the device elevated, risks related to leaves, standing water, compacted snow, and garden debris are reduced.
We also took care to manage the conduits and cables near the wall to achieve a neat finish. The outdoor route must be functional, but it must also respect the appearance of the house. A well-done HVAC installation does not leave an improvised impression: the lines are aligned, the fastenings are stable, the protections are well placed, and the whole remains accessible.
Significant coordination with the existing electrical installation
The proximity of the meter and existing electrical elements made this project particularly interesting. In a heat pump installation, electrical coordination must be carefully planned: dedicated power supply, appropriate protection, wiring route, clearance compliance, and connection conformity.
In a Montreal house, it is common to have to deal with old electrical entries, limited spaces, and existing elements. The goal is to connect the system without creating unnecessary clutter or exposing components to mechanical risks. At AirGreen, we place great importance on this step because a well-installed heat pump must be safe, durable, and easily verifiable.
The work is not limited to the connection. You also have to think about the future: a technician must be able to inspect the installation, access components, perform diagnostics, and intervene without having to unnecessarily dismantle the environment around the unit.
GREE All Match Slim Duct R32: a discreet solution for ducted projects
The GREE All Match Slim Duct R32 series is part of the ducted solutions offered by AirGreen for residential installations and some light commercial projects. It is available in several capacities, including 9,000 BTU, 12,000 BTU, 18,000 BTU, 24,000 BTU, 30,000 BTU, and 36,000 BTU, allowing the system to be adapted to the actual building load.
In this type of project, capacity should never be chosen solely based on a quick area estimate. A good selection takes several factors into account:
- the insulation of the house;
- the orientation of the rooms;
- the glazed area;
- the number of floors or zones served;
- the length of the ducts;
- pressure losses;
- the desired noise level;
- the required static pressure;
- the location of the indoor unit;
- the distance between the indoor and outdoor units.
The GREE range also includes low static pressure and high static pressure configurations. This choice is crucial for ducted systems. A short network with few outlets does not require the same pressure as a more extensive network. A poor selection can cause a lack of airflow, excessive noise, or uneven air distribution. Our role is therefore to size the system according to the building, not the other way around.
The refrigerant R32 and energy efficiency
The R32 is used in several new generations of GREE systems. In the context of a modern HVAC installation, it supports a design focused on efficiency, compactness, and performance. For homeowners, the main benefit remains concrete: to obtain a system capable of ensuring good comfort in cooling and heating, while integrating discreetly into the home.
Some GREE models are also designed for performance adapted to Quebec winters, with heating capacities up to -30 °C depending on models and configurations. This data must always be verified according to the exact installed combination, as performance varies by capacity, series, and application.
For a homeowner in Mercier–Hochelaga-Maisonneuve, this flexibility is important. Needs are not the same in a well-insulated recently renovated house as in an older property with greater heat loss. That is why we verify project details before recommending a specific capacity.
An outdoor installation respectful of the existing landscaping
The visible environment around the outdoor unit shows another common challenge: preserving the existing landscaping. The compressor is installed near plants, mulch, a staircase, and a house wall. In this type of situation, work must be done cleanly, avoiding damage to plants, securing the workspace, and ensuring air circulation around the unit.
An outdoor heat pump must breathe properly. If plants grow too close to the grille, if objects block the air outlet, or if the space is too tight, efficiency can decrease and the system may work harder than necessary. When handing over to the client, we always explain the best maintenance practices around the unit:
- keep plants at a reasonable distance;
- avoid placing objects in front of the grille;
- remove dead leaves around the unit;
- check for snow accumulation in winter;
- do not enclose the unit in a structure that is too tight;
- plan for service access.
These simple tips help protect the system's performance and lifespan.
An AirGreen project that combines integration, performance, and long-term service
This installation in Mercier–Hochelaga-Maisonneuve clearly demonstrates our approach at AirGreen: a ducted heat pump must be designed as a complete system. The outdoor unit, indoor unit, ducts, drainage, electricity, supports, clearances, acoustics, and service access must all work together.
Challenges specific to ducted installations in Montreal
Ducted projects in urban environments often require more preparation than standard installations. In Montreal, properties may have party walls, narrow yards, limited access, neighborhood constraints, old structures, or already completed interior renovations. This requires precise coordination between mechanical work, electrical work, and finishing.
In this project, the main points of attention were as follows:
- position the outdoor unit without obstructing the window or access to the meter;
- install supports stably on the structure;
- protect external connections;
- limit visual impact on the side facade;
- maintain good air circulation;
- respect landscaping;
- plan realistic service access;
- ensure consistency with the indoor ducted unit.
This method reduces the risk of problems after installation. It also allows for a cleaner and more professional finish.
Mistakes to avoid with a ducted heat pump
Many customers first compare brands, BTUs, and prices. These elements are important, but they are not enough to judge the quality of a ducted project. Here are the mistakes we recommend avoiding:
- choosing a capacity that is too high thinking it will improve comfort;
- ignoring the static pressure of the duct network;
- installing the indoor unit without maintenance access;
- placing the outdoor unit too close to obstacles;
- neglecting the management of condensation drainage;
- forgetting the noise level for occupants and neighbors;
- comparing only the final price without analyzing the design;
- assuming eligibility for a subsidy without verifying the exact model;
- not planning long-term maintenance.
A well-designed ducted system can offer remarkable comfort, but it requires real expertise. This is precisely why our team takes the time to validate every detail before, during, and after installation.
Subsidies, certifications, and documents after installation
Some GREE systems may be eligible for subsidy programs depending on their efficiency, certification, and the exact combination of installed units. For customers, this step can represent a significant financial advantage, but it must be handled with precision.
At AirGreen, we help owners understand the necessary information: indoor model, outdoor model, capacity, applicable certification, final invoice, and useful documents for the application. Eligibility must be confirmed according to the criteria in effect at the time of installation. We always prefer to provide reliable information rather than promise an amount without validation.
Why AirGreen for a GREE ducted installation
AirGreen is a GREE Elite dealer, which allows us to offer specialized expertise on ducted systems, including the All Match Slim Duct R32 series. This expertise translates on the ground into better equipment selection, more logical duct design, cleaner installation, and more efficient after-sales service.
We serve Montreal, Laval, Longueuil, the North Shore, and the South Shore, with teams familiar with the realities of houses, condos, plexes, multi-unit buildings, and small businesses. We work with a liability insurance of $5,000,000, a reassuring element for homeowners and managers who want HVAC work done seriously.
Our clients particularly appreciate our transparency: clear estimates, detailed options, accessible technical explanations, respect for the premises, and clean work. In a project like this, these elements matter as much as the machine itself.
Discreet comfort, a well-integrated outdoor unit, and an installation ready for Quebec seasons
The final result in Mercier–Hochelaga-Maisonneuve is an installation that meets a specific need: achieving effective ducted comfort while limiting visual impact inside and properly integrating the outdoor unit into the home's environment. The GREE All Match Slim Duct R32 heat pump allows for discreet air distribution, while the outdoor unit installed on wall mounts remains accessible, stable, and neatly connected.
This project shows that a good HVAC installation is not just about installing a device. It requires an understanding of the building, appropriate technical selection, careful execution, and a long-term vision. In Montreal, where every property has its particularities, this approach makes all the difference.
At AirGreen, we treat every ducted installation as a custom project. For this residence in Mercier–Hochelaga-Maisonneuve, choosing GREE allowed us to combine performance, discretion, and reliability, with an exterior finish adapted to the available space. This is exactly the type of solution sought by homeowners who want to improve their comfort without compromising the appearance of their home.