In a residential area like Sainte-Dorothée, comfort often comes down to the details: large windows, open area, solar heat in the summer, cooler areas in the winter… To meet these realities, our AirGreen team installed a Fujitsu wall-mounted heat pump (AIRSTAGE range, configuration consistent with a Fujitsu Altair 300 (KNAS – R-32) ), integrating the system in a clean, efficient and sustainable way.
A typical setting: large patio door and bright living area
The photo shows a living room with patio doors opening onto the outside, typical of houses and semi-detached homes in Laval. This type of window lets in a lot of light… but also causes temperature fluctuations:
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Overheating in spring and summer, especially at the end of the day
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Heat loss near windows in winter
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Drafts and localized discomfort in areas near the door
A well-positioned wall-mounted heat pump can stabilize these differences and improve daily comfort, without major construction work.
Machine type: wall-mounted heat pump (mini-split)
Here, we are clearly dealing with an indoor wall unit (wall head) installed high up. This is the most popular format in residential settings because it offers:
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Heating and air conditioning with a single unit.
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precise temperature control ,
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modulating operation (more stable, fewer jolts),
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An excellent solution when the house does not have centralized ductwork.
Make and model: Fujitsu – consistent hypothesis Altair 300 (KNAS, R-32)
The brand name provided is Fujitsu , and the indoor unit does indeed correspond to a wall-mounted unit from the residential range. Since the model label is not legible in the photo, a logical choice for this type of installation is a Fujitsu Altair 300 (KNAS – R-32) : a range renowned for its balance of comfort, efficiency, and reliability in Quebec's climate.
Visible installation details and important technical points
1) Strategic positioning in the corner, above the glazed area
The unit is installed near the ceiling , in the corner adjacent to the patio door. This positioning is very suitable:
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The airflow can sweep across the open area rather than remaining "stuck" to the wall.
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We limit the "hot zone/cold zone" effect near the windows,
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We optimize air circulation without encroaching on living space.
2) Clean integration: prepared wall and careful finishing
We can see a section of wall being prepared (panel/touch-up), as well as a ladder : signs of ongoing installation work, with attention to detail. At AirGreen, the focus is always on the final result.
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discreet,
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visually clean,
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easy to maintain,
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durable (especially at the point where pipes pass through and the outside exit).
3) Management of connections: passage, drainage and protection
Even if the outdoor unit is not visible, a properly installed wall unit always involves:
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a logical route for the refrigeration pipes (as direct as possible, without excessive length),
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a well-designed condensate drain (slope, safe drainage, prevention of backflow),
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protection against vibration and friction,
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a watertight wall penetration to prevent air and water infiltration.
These are “invisible” elements once the job is finished, but they determine the true quality of the project.
4) Acoustic comfort: an often underestimated criterion
In a living space, the perceived noise level is crucial. A well-installed Fujitsu, with proper calibration and optimized airflow, provides constant comfort without disturbance , which is particularly appreciated in the evening, in the living room or dining room.
Why a Fujitsu is an excellent choice for Laval
In Laval, we experience hot summers, humid nights, and winters that demand a reliable solution. A Fujitsu wall-mounted heat pump is ideal for these conditions, especially when it is:
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correctly sized,
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well positioned,
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installed with particular attention to detail (drainage, sealing, maintenance access).
We often repeat: performance depends as much on the installation as on the machine .
This is something we systematically validate at AirGreen
Even on a "simple" residential project, our team proceeds with rigorous logic:
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room analysis (windows, volume, air circulation),
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Choosing the right location for effective distribution,
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verification of clearances and accessibility,
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Proper management of pipes and drainage,
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Complete commissioning and functional testing.
This is what guarantees a system that does not just "hot and cold", but a system that is pleasant to live in .
Conclusion: an installation designed for comfort, not just for equipment
This installation of a Fujitsu wall-mounted heat pump in Sainte-Dorothée (Laval) perfectly illustrates our approach: maximizing comfort in a bright room, taking into account real constraints (patio door, air circulation, finish), and delivering a reliable solution for everyday use — summer and winter.