Precise comfort and careful integration into a busy living room
At AirGreen , we design each HVAC installation as a project in its own right. In this condo in Chomedey (Laval) , our client wanted a solution that would heat up quickly upon returning from work, cool efficiently in the evening, and remain discreet on a daily basis. We recommended a Gree wall-mounted heat pump (Inverter residential range), known for its stable performance over four seasons and its excellent value for money in Greater Montreal.
Machine choice: why a wall-mounted Gree here?
Our recommendation is based on three priority criteria for this type of Laval apartment:
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Energy efficiency and cold stability : Gree wall-mounted ranges offer high seasonal coefficients and maintain good heating capacity below zero, a crucial point for our winters.
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Quiet and compact : the indoor unit fits above the back of the sofa without creating an unpleasant draft; the low noise level benefits open living spaces.
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Simplified maintenance : accessible filters, clear diagnostics, availability of parts on the local market in Montreal and Laval — advantages for simple and quick annual preventive HVAC maintenance .
In Chomedey, the typical layout is a central living room opening onto the kitchen. A well-sized wall-mounted heat pump covers the living area and relieves the pressure on adjacent rooms, while avoiding oversizing.
Installation process: precision, cleanliness, safety
Scouting and preparation
We position the interior head approximately 2.10 m from the floor, with sufficient clearance at the ceiling for optimal airflow. The chosen wall, load-bearing and straight, allows:
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a direct drilling towards the outside with controlled slope for evacuation by gravity drain (no condensate pump, therefore less maintenance and zero parasitic noise);
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the shortest possible refrigeration path, limiting pressure losses and maximizing seasonal efficiency;
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preservation of the interior aesthetics: no visible conduit in the living room; the alignment is centered above the sofa for even diffusion.
Drilling, refrigeration lines and supply
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Making a 65 mm hole through the casing, with a sleeve and vapor barrier seal to maintain the watertightness.
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Installation of white capping on the exterior to protect the insulated refrigeration pair and the communication cable; the choice of white matches the light brick of the rear facade (balcony side).
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Dedicated power supply from the home's electrical panel, with a calibrated circuit breaker and cut-off device near the condenser, in accordance with RBQ/CSA requirements.
Installation of the outdoor unit
On the rear balcony, the Gree outdoor unit is installed on galvanized wall brackets with silent blocks to reduce vibrations. A free space is maintained for air circulation and defrosting in winter. We add:
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Retention tank and defrost pipe directed away from the pedestrian crossing;
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Removable snow guard for accumulations, practical on the North Shore ;
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Stainless steel anchor points and anti-corrosion protection of the fixings.
Commissioning and balancing
After vacuum extraction to <500 microns, stabilization, and leak testing, we proceed:
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to weighing/additional load according to the actual length (to remain within the performance window of the Inverter compressor);
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to delta-T measurements in cold and heat;
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to the vertical sweep configuration to avoid blowing directly onto the sofa and favor soft stratification in space.
Measurable result: comfort, savings and discretion
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Efficient additional heating for the open area (living room-kitchen-entrance); the temperature rises quickly and smoothly thanks to the inverter compressor.
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Even air conditioning in summer: the vent speed is automatically adjusted to avoid the sensation of drafts.
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Very low noise : the internal head operates at low speed most of the time, ideal for television, teleworking and evenings.
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Controlled energy bill : the heat pump covers a large portion of degree days at reduced operating costs compared to electric baseboard heaters.
What we look for in this type of salon
Air circulation and furniture placement
We validate the absence of major obstacles in front of the blower outlet (paintings, high bookcases, thick curtains). Here, the leather sofa is set back ~40 cm , which allows the flow to spread out and reach the kitchen.
Summer Humidity Management
Gree regulation allows for an intelligent Dry mode that lowers humidity without overcooling. We recommend:
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aim for 45–50% RH in summer;
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to program an Auto speed in the evening for a silence/drying compromise;
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to keep room doors ajar to assist with transfer.
Winter: defrosting and snow removal
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The balcony area is clear to avoid cold air recycling during defrosting;
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the snow guard limits burial during windy episodes typical of Laval ;
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a simple weekly glance is enough to confirm the free evacuation of condensate.
HVAC Use and Maintenance Tips
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Filters : monthly rinsing during periods of intensive use; replacement/thorough cleaning during annual maintenance.
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Fins : gentle dusting of the interior coil; no harsh products.
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Remote control/thermostat : favor a stable setting (e.g. 22°C in comfort), because frequent variations harm the inverter's performance.
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Annual AirGreen Maintenance : Electrical inspection, insulation testing, leak testing, refrigeration readings, chemical cleaning if necessary. This service extends the lifespan and maintains warranty eligibility.
Realistic sizing and expectations
In a standard Laval condo living room (25–35 m²), the 9,000–12,000 BTU/h range covers most needs if the envelope is correct. We always perform a rough load estimate (orientation, glazing, airtightness) to confirm capacity. For deep heating, the wall-mounted heat pump is considered the main source up to a threshold; baseboards take over occasionally when the mercury drops, depending on the building's actual insulation.
Grants and Compliance
Many Gree residential inverter models meet local program criteria. We support our customers in Montreal, Laval, Longueuil, North Shore, and South Shore to verify:
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Energy Star eligibility and low temperature performance;
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installation requirements (electrical equipment, clearances);
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supporting documents for detailed invoices and installation photos requested by certain programs.
What makes the AirGreen difference
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Honest and calibrated advice on site (thermal load, noise, aesthetics).
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Clean execution : clean drilling, careful sealing, protected wiring and connections.
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After-sales service : parts available and technicians trained in Gree , Fujitsu , Sharp , Midea , Zephyr , etc. ranges.
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Greater Montreal coverage : rapid interventions in Montreal , Laval , Longueuil , North Shore and South Shore .
Chomedey project review
The customer gains stable comfort all year round , imperceptible noise at low speeds and a significant reduction in consumption compared to all-electric. The integration above the sofa frees up space and respects the aesthetics of the living room. Mission accomplished, with performance that will remain sustainable thanks to regular HVAC maintenance carried out by our teams.
Do you have a similar salon in Laval or Montreal?
We quickly assess feasibility: line routing, condenser position (balcony, flat roof, side wall), co-ownership constraints, and precise sizing. We then propose a turnkey HVAC installation , transparent about costs, deadlines, and applicable subsidies.