Precise comfort in the dining room, without compromising on aesthetics
At AirGreen , we recently installed a Sharp wall-mounted heat pump in a condominium in the Rosemont–La Petite-Patrie neighborhood of Montreal. The project focuses on an open-plan living area where the dining room and living room share a single space. Two decorative pendant lights frame the main wall: the indoor unit therefore had to integrate with perfect symmetry , while ensuring uniform air diffusion throughout the room.
Client background and objectives
The owner wanted:
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Stabilize the temperature and humidity during the heat waves of July and August, without direct drafts on the dining table.
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Benefit from additional heating between seasons to delay the start-up of the main system.
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Keep the wall clean (stretched white paint, designer lighting), without visible cable ducts or exposed accessories.
Our recommendation: a Sharp wall-mounted heat pump from the residential inverter range , known for its reliability , quietness and precise modulation control . The brand meets the needs of urban living environments such as Montreal , Laval , Longueuil , North Shore and South Shore , where energy efficiency and sound discretion are priorities.
Installation design: precision to the millimeter
Choice of wall and installation height
The unit is placed high on the wall , under the ceiling, centered between the two suspensions. This position:
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Allows the horizontal air jet to follow the ceiling before falling naturally, which evens out the temperature.
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Avoids the discomfort of a direct flow on the guests.
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Leaves wall space free for low furniture (sideboard, console) without obstructing the appliance's suction.
Refrigeration and aesthetic journey
We opted for a back-to-back through-wall : the drilling is located directly behind the mounting plate, which shortens the connections (freon and communication) and eliminates the use of internal capping. Advantages:
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No visual impact on the inside: no chute.
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Minimized pressure losses and optimized efficiency thanks to reduced line length .
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Fewer connection points , therefore less risk of micro-leaks in the long term.
Externally, the connections are protected by a white UV trunking and waterproof elbows to ensure a clean appearance on the brick and easy maintenance.
Condensate management
The site offered a natural slope towards the outside: we configured a gravity drain with a slope ≥ 1% and a non-return elbow at the outlet. When the architecture does not allow it, we install high-end condensate pumps with silent blocks, but here gravity offers the most reliable and silent solution.
Power supply and compliance
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Dedicated circuit from the panel, circuit breaker sized according to the condenser nameplate.
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External disconnection within easy reach of technicians.
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Grounding, shielded communication cabling, sealed passage and fire-resistant sealant when drilling.
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Compliance with the Quebec Electrical Code and clearances around the outdoor unit.
AirGreen Methodology: Measurable Quality
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Simplified load study : dimensions, orientation, internal inputs (lighting, cooking), glazing and occupancy habits. This prevents us from oversizing, a source of discomfort and short cycles .
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Structural checks : location of uprights, suitable dowels, mounting plate perfectly level.
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Nitrogen brazing (if necessary) and torque-controlled flaring to ensure the integrity of the fittings.
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Nitrogen leak test (pressure test), then deep vacuum to ≤ 500 microns , with vacuum holding.
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Opening valves , superheat/subcooling control and checking blowing temperatures .
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Functional settings : shutter direction, automatic speeds, night mode, locking of certain functions if desired.
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Customer training : use of the remote control, HVAC maintenance (filter washing, frequency), savings tips.
Why Sharp for this type of urban project?
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Inverter modulation : the device finely adjusts the power to maintain a stable temperature with minimal noise .
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High energy efficiency (SEER/HSPF depending on the series), reducing bills and carbon footprint.
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Air quality : removable and washable filters, easy access for maintenance.
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Reliability : robust design, electronic protections, progressive start-up which preserves the electrical installation .
Model Note : Depending on availability and specific configuration, we offer Sharp residential line variants tailored to room volumes and four-season use. When required, we select a high-performance version to maximize applicable subsidies and cold-weather performance.
Results: immediate comfort, clean wall
Upon commissioning, the customer noted:
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A soft and even blowing towards the dining area then the living room.
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A noticeable reduction in humidity on muggy days.
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An intact wall bay : the unit blends into the decor, between the two suspensions, without visible cables.
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Very low noise levels , compatible with meals and teleworking.
Best practices for sustainable performance
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Clean filters every 4 to 6 weeks during the usage season.
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Maintain 1 m of clearance in front of the unit and avoid obstacles that break the airflow (massive frames, tall plants).
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Annual maintenance by an AirGreen technician: electrical inspection, tightening of terminals, checking of probes, gentle cleaning of the exchanger, checking of the drain.
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In winter (heating mode), turn the shutters slightly downwards to promote reverse stratification and limit the sensation of cold feet.
Grants and areas served
High-efficiency wall-mounted heat pumps may be eligible for financial assistance programs when certain performance thresholds are met. Our team assists households in Montreal , Laval , Longueuil , the North Shore , and the South Shore to verify eligibility and prepare the required documents .
What made AirGreen different on this project
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Aesthetic integration : careful centering between the lights, invisible rear path.
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Technical rigor : nitrogen test + deep vacuum ≤ 500 microns documented.
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Targeted comfort : self-set orientation and speed for a draft-free dining area.
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Support : clear explanations, user guide and HVAC maintenance schedule.
Do you have a similar project?
Whether you are in a new condo in the Plateau , a duplex in Villeray , a single-family home in Brossard or a townhouse in Laval-des-Rapides , we design HVAC systems that respect your architecture and your comfort objectives. Our certified teams ensure clean, compliant and guaranteed work, from quote to commissioning.
AirGreen : your heat pump and air conditioning partner throughout Greater Montreal .