4-season comfort, low consumption: a discreet HVAC upgrade in the heart of a Montreal living room
At AirGreen , we work weekly in Montreal 's central neighborhoods to modernize homes with low-energy and efficient HVAC solutions. In this project located in Rosemont–La Petite-Patrie , we installed a Gree wall-mounted heat pump – R32 range in a living room with meticulous finishes (ceiling moldings, built-ins, wood flooring). The goal: to ensure precise cooling in the summer and stable heating support in the winter , while reducing energy bills and preserving the aesthetics of the space.
The context: a bright… and demanding living room
The living room features a typical Montreal plex layout: a long, open wall housing the media center, an existing electric baseboard heater at the bottom of the wall, and a standard ceiling height complemented by recessed lighting. This type of space accumulates heat in the summer, especially when the afternoon sun shines, and experiences temperature fluctuations in the winter.
Our priorities when planning HVAC installation :
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ensure even air distribution without drafts in the TV/living room area;
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integrate the unit discreetly under the ceiling molding, with optimal clearance for motorized shutters ;
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plan a short and clean connection route in order to limit pressure losses and facilitate HVAC maintenance .
Why a Gree R-32 wall-mounted heat pump?
Gree's R32 range combines the features sought by urban owners:
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R-32 refrigerant : better balance between performance and environmental impact than R-410A, with a high COP and reduced charge;
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Latest generation inverter : the machine adapts its power continuously, maintaining the setpoint with a very low noise level ;
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Cold weather performance (depending on the configuration chosen during sizing) allowing reliable heating down to low temperatures, adapted to the climate of Greater Montreal ;
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Stabilized dehumidification mode : crucial for summer comfort in brick apartments;
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Advanced filtration and accessible maintenance, promoting indoor air quality .
For an average-sized living room like this, a capacity of 9,000 to 12,000 BTUs is generally the optimal area. We always size taking into account orientation , envelope , and internal loads (lighting, appliances).
Our installation methodology: clean, fast, durable
1) Precise implantation of the inner head
We positioned the unit high on the wall to take advantage of the Coanda effect: the jet follows the ceiling and then descends naturally, covering the depth of the living room. The clearance on the left avoids any interaction with the media corner; on the right, the unit blows freely towards the circulation area.
2) Drilling and routing of connections
The single hole is made at a slight slope to promote gravity drainage of condensate . The refrigerant lines (insulated copper) and communication wiring take a very short route to the outside, protected by white capping that blends in with the color of the walls. Reduced noise, refrigeration length and intervention time: all gains for reliability.
3) Connections, vacuum drawing and testing
After calibrated crimping, we proceed to deep vacuum drawing , leak testing and controlled pressurization . This step guarantees a hermetic circuit and preserves the longevity of the compressor. Commissioning concludes with the control of blowing temperatures , intensities and expansion valve parameters .
4) Finishing and integration
No exposed cables: the finishes respect the aesthetics of the living room. The existing electric baseboard remains functional as a one-off winter backup , but the heat pump now takes the lead role for comfort and economy.
Measurable results for the occupant
From the first day of use, the benefits are felt:
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Fast and quiet cooling of the living room during heat peaks;
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Controlled humidity , which enhances the feeling of comfort without excessively lowering the setpoint;
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Expected reduction in summer consumption compared to a window air conditioner, and winter savings thanks to the advantageous COP in mid-season;
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Consistent comfort extends to the outermost areas of the room, even when the TV and appliances generate heat.
HVAC Use and Maintenance Tips by AirGreen
A high-performance system deserves good practices to last:
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Filters : gentle vacuuming every 2 to 4 weeks and periodic washing;
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Instructions : avoid extreme deviations; a setpoint of 22–24°C in summer and 20–22°C for heating ensures comfort and efficiency;
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Auto vs. Cool/Heat mode : in the off-seasons, favor dedicated modes to limit switching;
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Annual maintenance by our team: inspection of thermal exchanges , cleaning of batteries , checking of drains , electrical and refrigeration control.
These simple actions extend lifespan, support air quality and maintain seasonal yields .
Possible grants and eligibilities
Depending on the outdoor unit/extreme cold technology combination selected for sizing, the Gree R-32 heat pump may be eligible for certain energy efficiency programs offered in Quebec. We guide our customers in Montreal, Laval, Longueuil, North Shore and South Shore to gather supporting documents (model/serial numbers, proof of installation, photos) and optimize the process . Our team prepares the documentation required by the programs as needed when the technical criteria are met (operating range, seasonal performance, certification).
Technical focus: air diffusion and placement
In this apartment, the unit is placed above the sight line , which:
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frees the TV area from any direct breath;
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creates a laminar air movement under the ceiling before descending into the occupied area;
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minimizes the return of hot air produced by the electronics.
The horizontal flap is adjusted to sweep the entire room without creating cold spots . This approach reduces short cycles, which is beneficial for consumption and acoustic comfort .
Common Pitfalls…and How We Avoid Them
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Multiple unnecessary drilling : here, a single clean and watertight passage .
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Approximate drainage : controlled slope and extended tests in cold mode to validate gravity flow .
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Oversizing : We size for the actual room load , not for a “comfort” number. Result: stable cycles , best SEER/HSPF operated.
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Visible wiring : discreet finishes, matching color, short path.
What the customer gains with AirGreen
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A single point of contact : technical visit, clear proposal, certified HVAC installation , commissioning, training in use.
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Transparency : explanation of Gree options in the R32 range and their functional differences; quantified recommendations, no unnecessary jargon.
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Peace of mind : manufacturer warranties respected, local and responsive after-sales service throughout Greater Montreal .
Conclusion: a sober modernization that changes everything
This Gree wall-mounted heat pump installation (R32) in Rosemont–La Petite-Patrie illustrates the value of careful sizing and installation: the living space gains in coolness in the summer, in softness in the winter, all with minimal noise levels and contained operating costs . This is exactly the type of upgrade that improves the quality of daily life in Montreal homes, without compromising on aesthetics.
AirGreen supports building owners and managers in Montreal, Laval, Longueuil, and on the North and South Shores for HVAC projects that combine performance , discretion , and sustainability . Tell us about your most difficult-to-temperature room: we'll transform it into a comfort zone.