A compact HVAC installation in Dorval, designed for daily comfort without transforming the interior space
In this project in Dorval, our AirGreen team installed a GREE LIVO R32 wall heat pump, also used as a mini split wall air conditioner, in a room where every detail mattered: limited available height near the ceiling, presence of a large glazed opening, decorative moldings above the window, and the need to integrate the unit without visually weighing down the room.
The photo clearly shows one of the major advantages of a well-planned wall HVAC installation: the indoor unit is positioned above the window, in an area generally little used, which helps preserve the side walls, maintain the existing layout, and direct air effectively into the room. In a house or condo in Dorval, this type of installation is especially relevant when wall space is limited or when owners want to add comfort without undertaking major renovations.
At AirGreen, we know that a heat pump must not only be functional. It must also integrate neatly into the interior environment, respect the building’s constraints, and offer stable operation in both cooling and heating.
Why the GREE LIVO R32 was suitable for this installation in Dorval
A discreet wall format for a room with moldings and a low ceiling
The installation shown in the photo presents a common challenge in residences in Montreal, Laval, Longueuil, the North Shore, and the South Shore: installing a wall unit in a space where existing architectural elements impose precise limits. Here, the presence of a horizontal molding above the window, combined with the proximity of the ceiling, required precise positioning.
Our technicians have chosen a height allowing:
- good air circulation in the room;
- convenient access for regular HVAC maintenance;
- a clean appearance aligned with the existing opening;
- a safe installation without compromising the necessary clearances;
- a more natural visual integration into the room.
The result is a simple, compact, and efficient installation. The indoor unit does not block the window, does not overload the wall, and remains easily accessible for filter cleaning.
A 12,000 BTU wall heat pump designed for residential comfort
The GREE LIVO R32 12,000 BTU is an interesting solution for several residential spaces: living room, master bedroom, office, moderately sized living area, or sun-exposed room. In its AirGreen technical sheet, this model is associated with a nominal capacity of 12,000 BTU, refrigerant R32, included Wi-Fi, a power supply of 115 V, piping of 1/4 - 3/8 in, as well as indoor noise levels of 27 / 47 dB(A) and outdoor noise of 52 dB(A). The sheet also indicates an efficiency of 19.0 SEER2, 8.5 HSPF2, and 9.8 EER2, with a heating capacity rated down to -25 °C.
This data is important for owners comparing several options for wall air conditioners or wall heat pumps. A 12,000 BTU unit can offer an excellent balance between comfort, reasonable electricity consumption, and the capacity to handle a typical room, provided the sizing is validated on site.
At AirGreen, we never recommend capacity based solely on area. We also consider window orientation, insulation, ceiling height, room layout, usage habits, and actual heating or cooling needs.
R32, included Wi-Fi, and wall installation: details that matter
Choosing a GREE LIVO R32 heat pump offers several concrete advantages for a residential installation in Dorval. The R32 refrigerant allows for a modern design, included Wi-Fi facilitates remote control, and the wall-mounted mini-split format avoids duct installation.
For the client, this means easier daily use:
- adjust the temperature from a smartphone;
- program the device according to occupancy periods;
- reduce unnecessary use when the room is unoccupied;
- use the air conditioning function during hot spells;
- take advantage of supplemental heating during cooler periods.
In the context of Greater Montreal, where days can quickly shift from humid to very hot in summer, then cold and variable in fall and spring, this flexibility is a real practical advantage.
An important note about the LogisVert subsidy
Not all heat pump models automatically qualify for financial aid. In the AirGreen sheet consulted for the GREE LIVO R32 12,000 BTU 115V, the indicated provincial LogisVert subsidy is $0, with an update dated November 26, 2025, and the model is listed as non-ENERGY STAR certified in this sheet.
This is an essential point to explain clearly to clients. A heat pump can be attractive for its price, size, noise level, ease of installation, and comfort, even if it is not eligible for a subsidy. Conversely, some projects require prioritizing an eligible model to maximize the financial return after installation.
Our role is precisely to help the client compare options transparently: initial cost, performance, available subsidies, electrical constraints, interior aesthetics, and comfort goals.
The key steps of this AirGreen installation in Dorval
Analysis of the indoor location
Before mounting the indoor unit, our team evaluated the area above the window. The goal was to confirm that the unit could be securely installed, that air would be well distributed, and that access to components would remain possible.
In this type of setup, a few mistakes should be avoided:
- installing the unit too close to the ceiling;
- blocking the air diffusion flap;
- choosing a location that blows directly onto a seating area;
- neglecting condensate drainage;
- placing the unit in a hard-to-maintain location;
- underestimating decorative obstacles like moldings or casings.
In this installation, the chosen position maintains a clean appearance while respecting the operating logic of a wall-mounted mini split.
Routing of lines and discreet finishing
A successful HVAC installation is not just about hanging the indoor unit. It also requires managing the routing of refrigerant lines, drain, communication wiring, and power supply according to applicable standards.
In an installation like this, precision is especially important because the unit is immediately visible upon entering the room. A misaligned mount, insufficient drain slope, or sloppy finish can harm both performance and overall appearance.
Our technicians work with a structured approach:
- location validation;
- work area protection;
- controlled drilling;
- installation of the wall bracket;
- line connections;
- leak test;
- vacuuming;
- start-up and operation check;
- explaining the controls to the customer.
This method reduces the risk of callbacks and ensures more reliable operation from day one.
The importance of proper sizing
A common mistake is choosing a wall-mounted heat pump that is too powerful or too weak. An oversized unit can reach the temperature too quickly without properly dehumidifying. An undersized unit may run too long and never provide the expected comfort on very hot days.
For an installation in Dorval, we take several factors into account:
- room orientation;
- window surface area;
- insulation;
- floor of the dwelling;
- sun exposure;
- air circulation to adjacent rooms;
- presence of heat-producing devices;
- client expectations in heating and air conditioning.
In this project, the GREE LIVO R32 12,000 BTU fits into a targeted comfort logic, ideal for stabilizing the temperature of a specific room without modifying the entire mechanical system of the home.
A relevant solution for Dorval and the West Island
Dorval features a wide variety of buildings: single-family homes, condos, plexes, renovated residences, older properties, and buildings near the lake. Many homes do not have central ducts or have an existing system that no longer meets current needs.
A mini split wall heat pump allows adding comfort without invasive work. It is also an interesting solution when the client wants to air condition a specific room, reduce humidity, improve nighttime comfort, or supplement an existing heating system.
We regularly carry out this type of installation in Dorval, but also in Montreal, Laval, Longueuil, on the North Shore and on the South Shore. Each area has its particularities: brick walls, condos with strict regulations, limited access to facades, balconies, narrow backyards, electrical constraints, or condominium requirements. Our field experience allows us to anticipate these details before work begins.
What the client gains daily
After installation, the client benefits from a system that is simple to use, discreet, and adapted to their space. The wall unit quickly cools the room in summer, better manages humidity, and provides supplemental heating when temperatures drop.
The most concrete advantages are:
- more stable comfort in the room;
- quiet operation;
- convenient Wi-Fi control;
- compact unit above the window;
- installation without ducts;
- simple filter maintenance;
- solution suitable for residences where wall space is limited.
The visible positioning in the photo clearly shows the goal: to offer effective comfort while maintaining the normal use of the room and the existing aesthetics.
Maintenance tips to preserve performance
Once the GREE LIVO R32 wall heat pump is installed, a few simple actions help maintain good performance:
- clean the filters regularly;
- keep the space around the unit clear;
- avoid blocking the diffusion flap;
- check that the drain evacuates properly;
- schedule periodic HVAC maintenance;
- monitor any changes in noise, smell, or performance.
Professional maintenance also allows checking the general condition of the device, the cleanliness of the evaporator, condensation, connections, and the overall system operation.
Why entrust this type of installation to AirGreen
A successful HVAC installation relies on experience, precision, and the ability to adapt the solution to the building’s reality. In this project in Dorval, the challenge was not only technical. The unit also had to be integrated into a visible space, with little clearance near the ceiling and a window directly below the device.
At AirGreen, we prioritize a comprehensive approach:
- real evaluation of the location;
- clear model recommendation;
- explanation of limits and advantages;
- clean installation;
- compliance with standards;
- post-installation service;
- transparent support on subsidies when available.
Our goal is to offer a durable solution, well installed and truly adapted to the client, whether for a house in Dorval, a condo in Montreal, a property in Laval, a plex in Longueuil, or a residence on the North Shore or South Shore.
Conclusion: a clean, practical, and well-integrated wall installation
This installation of a GREE LIVO R32 12,000 BTU wall heat pump in Dorval perfectly illustrates the importance of a good location choice. Placed above the window, the indoor unit maximizes space use, maintains a discreet appearance, and allows for effective air distribution.
For owners looking for a compact mini split wall air conditioner, a flexible comfort solution, and professional installation in Greater Montreal, this type of project shows that good planning makes all the difference.