Precise comfort in an urban bedroom: a compact, clean and quiet installation by AirGreen
Project background
At AirGreen , we are working in an apartment in Plateau-Mont-Royal , where a bedroom overlooking an interior courtyard was experiencing marked temperature differences between summer and winter. The client's objective: four-season comfort without encroaching on the refined aesthetic of the room. We offer a Gree wall-mounted heat pump from the R32 range (new generation) in a compact wall-mounted indoor unit format, installed on a high wall above the dressing table and a circular mirror.
Why a Gree wall-mounted heat pump in this context?
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Real efficiency in mid-season : the heat pump captures external calories to heat at low cost; in air conditioning, the inverter avoids jolts.
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Minimal footprint : the wall unit does not compromise circulation space or storage.
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Silence : low noise levels suitable for sleeping areas; peaceful night despite dense neighborhoods typical of the Plateau .
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R-32 refrigerant : better energy efficiency than R-410A and lower GWP , in line with current environmental requirements.
Device installed and configuration
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Brand : Gree – recent residential R32 range .
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Type : single-zone wall-mounted heat pump (mini-split).
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Capacity : typical sizing 9,000 to 12,000 BTU , validated by a load calculation taking into account the orientation, the insulation of the dividing wall and the internal contributions (lighting, electronics).
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Controls : IR remote control and Wi-Fi option for time scenarios (night lowering, return from work).
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Comfort functions : automatic vertical sweep, dehumidification mode to maintain a stable humidity level during hot and stormy episodes in Montreal .
Details of the installation carried out by AirGreen
Height and location
The inner head is placed at the highest point of the wall , under the ceiling, to maximize the airflow while remaining accessible for maintenance. This position prevents direct airflow onto the sleeping area.
Short and discreet refrigeration path
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Back-to-back : direct crossing from the back wall to the outside, which reduces line length and maintains factory efficiency .
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Capping : visible sections covered in white , connected neatly at the corners; the other sections are recessed to preserve the painted walls and the decor.
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Waterproofing : careful vapor barrier seals to prevent any parasitic condensation in the wall.
Condensate management
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Gravity drainage preferred, with continuous slope and non-return elbow.
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External discharge positioned outside the frost zone and away from pedestrian traffic in the courtyard.
Power supply and protections
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Dedicated 240V circuit with calibrated circuit breaker, clearly marked on the panel; Low-Voltage communication cable separated from the power to avoid interference.
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Compliant outdoor disconnect switch for safety and maintenance.
Commissioning
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Nitrogen test , deep vacuum and weighing of refrigerant according to the exact installed length.
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Supply/return temperature readings and intensities; control of residual noise in the room, adjustment of fan speeds for a quiet night profile .
Results obtained
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Thermal stability : limited variations around the setpoint, summer and winter.
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Silence : low mode almost imperceptible at night; sleep is not disturbed.
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Savings : in the off-season, the heat pump covers most of the heating at a lower operating cost than electric baseboard heaters.
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Aesthetics : clean integration above the mirror; no visible cables or invasive cable ducts.
Tips for using a bedroom
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When heating , turn the shutters slightly downwards to break up the stratification under the ceiling.
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In air conditioning , a more horizontal jet to rinse the room without drafts on the bed.
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Maintain stable setpoints (21–22°C winter, 23–24°C summer) to avoid short cycles.
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Activate the dehumidification mode during humidity peaks; perceived comfort increases and the bedding remains dry.
Recommended HVAC maintenance
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Clean filters every 8 to 12 weeks during periods of heavy use.
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Annual inspection : heat exchange, fan, condensate tray, electrical tightening, check for overheating/subcooling .
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Clear the outdoor condenser of snow/leaves and check the silent blocks .
Grants and Eligibility
Modern R-32 wall-mounted heat pumps are generally eligible for assistance programs in Quebec when they meet the required coefficients and are installed by a licensed contractor. We support our customers in Montreal , Laval , Longueuil , the North Shore and the South Shore for:
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verification of approved models,
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preparation of documents,
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and submission of requests to optimize savings.
Common mistakes to avoid
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Undersize (ignore afternoon sun on the courtyard side).
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Unnecessarily long refrigeration path which degrades the COP and complicates the aesthetics.
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Condensate drainage without slope or too close to a frost zone.
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Incorrect orientation of the flaps resulting in direct blast on the occupant.
Why AirGreen for your HVAC system?
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Local expertise : daily interventions in apartments, condos and plexes in Greater Montreal .
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Finish : discreet capping , clean crossings, paint touch-ups as needed.
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Rigor : sizing by load calculation , documented commissioning protocol, and responsive after-sales service .
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Follow-up : Customized HVAC maintenance plans; seasonal reminders and peak availability.
Balance sheet
This Gree R32 range wall-mounted heat pump installed in Plateau-Mont-Royal provides stable comfort , exemplary silence and lasting energy efficiency , all with careful visual integration in a room where every detail counts. For similar projects in heat pump , wall-mounted air conditioner or complete HVAC installation , our team supports you from design to maintenance , everywhere in Montreal , Laval , Longueuil , on the North Shore and the South Shore .