A wall-mounted head perfectly integrated above a patio door for a more comfortable, quiet and eco-efficient living room
Client context and objectives
In this Chomedey (Laval) semi-detached house, the owners wanted to stabilize the temperature on the ground floor—living room, dining room, and kitchen area—without invasive work. We recommended a Zephyr wall-mounted heat pump for its compactness, discretion, and ability to efficiently heat and cool the open spaces typical of North Shore homes. The goal: to achieve consistent comfort , controlled consumption, and quiet operation, while preserving the existing openings and the aesthetics of the living room.
Location choice: above the patio door
We position the interior head above the patio door leading to the terrace. This location has several concrete advantages:
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Optimized air diffusion in the axis of the living room, which quickly homogenizes the temperature.
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Very short refrigeration path (direct passage through the exterior wall), limiting pressure losses and maximizing seasonal efficiency.
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Condensate drainage by gravity , without additional pump, therefore without noise or additional maintenance.
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Easy access for HVAC maintenance (filter cleaning, annual inspection).
We respect the clearances in the upper part to avoid recirculation of hot air against the ceiling and traces of "over-washing" air on the paint. The blower shutters are adjusted to project the flow slightly downwards and towards the center of the room.
Sizing and expected performance
Based on the volumes, insulation, and orientation of the glazing, the useful power required for the living area is within the standard range for residential wall-mounted heat pumps. A properly sized heat pump :
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keeps heating efficient in cool weather and mid-season,
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ensures pleasant air conditioning during heat waves,
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offers an excellent consumption/comfort ratio compared to individual electric convectors.
When the installed Zephyr series is Energy Star certified and designed to perform around −25°C , the equipment may be eligible for certain provincial grants ; our team systematically checks these criteria when making the proposal.
Refrigeration route and exterior finishes
The choice of the patio door allows for a short and clean wall crossing (clean drilling in the top rail). Outside:
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Waterproof capping and outlets protected against water and UV,
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Continuous slope of the drain for gravity evacuation,
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Refrigerant lines carefully insulated and taped to prevent surface condensation.
Depending on the deck layout, the outdoor unit is typically installed on a vibration-resistant slab or on wall brackets clear of the railing to optimize air circulation and winter snow removal. We always adjust the height to prevent ice buildup near the drainage outlets.
Aesthetic and acoustic integration
The Zephyr head unit visually blends into the light-colored living room wall. Its smooth front, discreet display, and low noise contribute to quality of life in everyday life: talk, watch TV, receive—the device remains in the background. Vibrations are neutralized by shock-absorbing pads and careful leveling during installation.
Air quality and maintenance
To maintain original performance:
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Vacuum or rinse the filters every 4 to 6 weeks during periods of heavy use.
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Schedule an annual HVAC maintenance with AirGreen: deep cleaning of the evaporator, verification of refrigeration parameters, electrical and condensate inspection.
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Keep the outdoor unit free of leaves and frost to maintain good heat exchange.
These simple actions preserve seasonal efficiency, reduce consumption and extend the life of the equipment.
Daily driving and comfort
The wall control and remote control allow:
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precise temperature ranges ,
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a dehumidification mode useful during humid episodes,
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modulated fan speeds to balance quietness and airflow,
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programs adapted to family schedules.
By default, we set an airflow directed towards the living area and an air intake free from any obstruction (curtains, rods, high furniture), in order to avoid “dead zones”.
Construction site challenges and solutions
Limited height at the head of the bay : above a patio door, space is limited. We have:
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checked the flatness of the lintel for perfect support,
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chose fixings suitable for the wall material,
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adjusted the shutter to prevent any air backflow against the ceiling (source of dark streaks).
Drilling management : the wall penetration is carried out with a slight outward slope to secure drainage. A sleeve protects the connections and prevents long-term friction.
Measurable result
After commissioning and functional tests, we observe:
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a rapid drop in indoor temperature in air conditioning mode,
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even distribution of air into the dining area,
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a reduction in electricity consumption compared to resistive heating solutions used previously.
Customers appreciate the ease of use and the silence in the evening, even in the immediate vicinity of the head.
Best practices for open rooms
To ensure your HVAC system performs at its best:
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Leave interior doors open to allow circulation.
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Avoid blocking the air intake with long curtains.
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In summer, choose a moderate setting (e.g. 23–24°C) to limit short cycles.
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In winter, use the hold function and let the device work continuously at low speed for greater efficiency.
Why AirGreen for your project in Montreal, Laval, Longueuil, South Shore & North Shore?
Our team understands the real constraints of Greater Montreal housing: urban plexes in Montreal , semi-detached houses in Laval , houses on the South Shore and the North Shore . We work with an engineering + finishing approach:
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neutral advice on the brand and range suited to your volume and insulation,
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verification of eligibility for aid programs where relevant,
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careful execution, deadlines met, responsive after-sales service.
Whether it's for a wall-mounted heat pump , a wall-mounted air conditioner , a MultiZone heat pump or a central system, we deliver a clean, documented site ready for many years of comfort.
What's next?
We offer an annual maintenance package and performance inspections as needed (shutter optimization, seasonal settings, filter reminders). This preventative approach maintains performance and guarantees a stable user experience, summer and winter.
Result: stable comfort and controlled consumption
This Zephyr wall-mounted heat pump installed in Chomedey (Laval) transforms the daily lives of occupants: better distributed air, controlled humidity, contained energy bills. A compact, elegant and scalable solution — perfectly aligned with the climatic and architectural realities of Greater Montreal .