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Installation d’une Fujitsu thermopompe murale à Chomedey (Laval)
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Installation of a Fujitsu wall-mounted heat pump in Chomedey (Laval)

Four-season comfort, protected and discreet under the terrace

Background and objectives

At AirGreen , we are working on a renovated basement of a house in Chomedey, Laval , where the owners want stable comfort in both summer and winter without compromising the aesthetics of the garden. Our recommendation: a Fujitsu monosplit wall-mounted heat pump , sized for the actual needs of the living area (living room + office on the garden level), with particular attention paid to the clearances under the terrace structure.

The choice of equipment

Fujitsu stands out for its reliability in extreme cold and its quiet operation. The targeted capacity range (≈ 12,000 BTU/h ) covers peak room loads while ensuring fine modulation in mid-season. The wall unit offers:

  • High seasonal efficiencies (heating/SEER) with inverter compressor;

  • Efficient heating at low temperatures, ideal for Greater Montreal ;

  • Exterior noise level contained for the neighborhood.

Exterior layout details

We position the condenser on a stable concrete slab , on a bed of draining stones. Four anti-vibration pads limit transmission to the neighboring wooden structure. The key points of the HVAC installation :

  • Short refrigerant path (≈ 3–4 m): the connections exit behind the indoor unit and descend directly, limiting pressure losses and optimizing efficiency.

  • Gravity-based condensate management : discreet discharge towards the stone bed, preventing frost in winter.

  • Air clearances respected despite the terrace: free extraction on the grille side, sufficient clearance at the rear and above for defrosting .

  • Dedicated wiring and circuit breaker compliant with current code; service switch within reach (out of scope).

  • Natural protection against snow and direct sunlight thanks to the terrace: less winter accumulation, better longevity of finishes.

Interior intervention

The wall head is placed high up, centered on the traffic axis. The criteria used:

  • Free blowing without conflict with curtains/doors;

  • Even distribution to the adjacent office;

  • Unique clean and capped drilling ; watertight joints and high-density insulation to prevent condensation in the wall.

Site challenges… and our solutions

  • Under-terrace space : risk of hot/cold air recirculation. We have validated the clearances and flow direction to avoid any air loops.

  • Wooden structure vibrations : elastomer pads + precise slab wedging eliminate resonances.

  • Snow management : positioning under the terrace avoids snow banks; sufficient ground clearance is provided for defrosting frost.

Measurable result for the client

  • Immediate and stable comfort : rapid heating, uniform cooling in summer.

  • Silence : preserved neighborhood; low sound pressure near windows.

  • Efficiency : continuous modulation reducing on/off cycles; energy bill optimized compared to equivalent electric baseboards.

Good maintenance practices

To maintain performance and warranty:

  1. Gently rinse the external battery in the spring (without high pressure).

  2. Clean/vacuum the inner head filters monthly during use.

  3. Clear leaves and debris around the condenser.

  4. Schedule annual HVAC maintenance by our technicians (refrigerant check, electrical connections, condensates, defrosting).

Grants and Compliance

Fujitsu high-efficiency wall-mounted heat pumps generally meet the financial assistance criteria when they display certified efficiencies and low-temperature performance. We support our customers with pre-eligibility verification and file preparation, whether you are in Montreal , Laval , Longueuil , on the North Shore or the South Shore .

Site planning tips for houses with terraces

  • Aim for sufficient clearance at the blowing/suction faces;

  • Prefer a stable slab rather than bare ground to limit frost movements;

  • Anticipate the gravitational flow of condensates and move it away from pedestrian paths;

  • Avoid closed corners: free airflow guarantees performance and lifespan.

Why AirGreen

We combine precise sizing , careful execution, and compliance with local standards. Our teams cover the entire Greater Montreal area and offer fast installation slots, clear maintenance contracts , and comprehensive grant support. Your project becomes a lasting investment in comfort and savings.

Keywords mastered: heat pump , wall-mounted heat pump , HVAC installation , HVAC maintenance , Montreal , Laval , Longueuil , North Shore , South Shore .

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