A compact wall head that modernizes comfort without weighing down the decor
At AirGreen , we have just installed a Sharp wall-mounted heat pump in a typical Rosemont–La Petite-Patrie residence. The owner's mandate was clear: to obtain four-season heating/cooling that is more stable than with electric baseboards, without noise or clutter, and with a sober integration into a renovated living room with pale gray walls. The Sharp indoor head that we installed, very compact and with a sleek design, meets these expectations precisely while providing the brand's distinctive advantages, notably Plasmacluster purification technology .
Room analysis and air diffusion strategy
The area to be treated is a living area with a standard ceiling, where circulation is between the living room and an adjacent corridor. To optimize diffusion , we chose the most open load-bearing wall , close to the ceiling and off-axis from the passageways . This positioning allows:
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a horizontal sweep that pushes air along the wall for a soft and uniform mix;
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a free air intake (no obstacle less than 1 m below the unit);
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avoiding air currents directed towards the sofa and the circulation area.
The result: you feel consistent comfort in just a few minutes, without direct air jets on the occupants.
Why the Sharp wall-mounted heat pump (R-32)
Sharp has earned a reputation for its quiet units , precise inverter control , and, most importantly, its Plasmacluster technology , which improves indoor air quality . In a living space that is closed for several hours a day, this feature makes a noticeable difference.
Major assets retained for this project:
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Inverter modulation : the machine finely adjusts its power to maintain the setpoint with contained consumption.
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R-32 refrigerant : better volumetric performance and reduced climate footprint compared to older R-410A systems.
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Plasmacluster : helps control odors and reduce certain suspended particles, interesting for a living room used daily.
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Quiet : Very low indoor noise levels at low speed, perfect for relaxing and watching TV.
Technical details of the AirGreen installation
General configuration
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Type : single-zone wall-mounted heat pump ( mini-split ).
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Brand : Sharp (new generation at R-32 ).
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Sizing : BTU selection after load calculation taking into account the surface area, orientations and joinery.
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Electricity : 230 V power supply with dedicated circuit , external disconnector and protection calibrated on the panel.
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Refrigeration lines : direct and compact route of approximately 2 to 3 m ; passages sealed with vapor barrier.
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Condensates : gravity drainage to the outside (controlled slope, antifreeze).
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Finish : discreet white capping aligned with the ceiling; invisible fixings.
Commissioning procedure
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Nitrogen test and leak test.
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High vacuum and stabilization; micron level check.
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Airflow setting (auto speed and sweep) to avoid cold areas .
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Electrical control (compressor/fan intensity, polarities, tightenings).
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Owner training : Hot/Cold/Auto modes, programming, filter cleaning.
Outdoor unit
Installed in the backyard on anti-vibration supports with standard clearances at the backflows. This installation guarantees efficient defrosting in winter and minimal noise levels for the neighborhood.
Results obtained: comfort, discretion, economy
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Rapid rise in comfort : the room reaches the setpoint without over-blowing; the adjustable shutters ensure a gentle flow above the occupants.
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Controlled noise : at low speed, the head is barely audible ; ideal for movie nights.
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Efficiency : for mid-season heating and mild winters, the heat pump takes over from baseboards; the electricity bill benefits.
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Air quality : the Plasmacluster function contributes to a healthier indoor environment .
Architectural integration: the detail that changes everything
The aesthetic choice was to obtain a continuous line between the ceiling and the adjacent furniture, without any visible cables . We have:
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ensured the flatness of the support and alignment with the ceiling;
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used a thin capping that blends in with the molding;
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sealed the hole and restored the vapor barrier , essential to avoid dew points.
The final result is minimalist: the Sharp head becomes a neutral element of the decor, without compromising accessibility for maintenance.
AirGreen Recommended HVAC Maintenance
To maintain performance (SEER/HSPF) over the seasons:
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Filters : vacuum every 4 to 8 weeks , clean with warm water if necessary.
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Shutters : light dusting (microfiber) to maintain flow precision.
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Outdoor unit : keep the area clear (leaves, snow) at least 50 cm.
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Annual visit : complete HVAC maintenance (exchanger, condensates, electrical tests), particularly before winter.
Grants and administrative support
Recent R-32 wall-mounted heat pumps , installed by a licensed RBQ contractor , can meet the criteria of various Quebec programs. Our team:
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confirms the eligibility of the installed Sharp range;
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provides detailed invoices and compliance photos ;
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advises on usage parameters to maximize energy savings.
Good practices from the construction site
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Reduced connection length to limit refrigerant losses and noise.
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Gravity discharge : reliability and zero maintenance compared to a condensate pump.
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Orientation of the shutters along the wall to avoid direct drafts into the seating area.
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External clearances respected for rapid defrosting and increased compressor longevity.
AirGreen: your HVAC installation partner in Greater Montreal
From Montreal to Laval , Longueuil , North Shore and South Shore , our teams size , install and maintain your Sharp, Fujitsu, Gree, Midea, LG, Zephyr systems and more. Our approach:
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On-site assessment and load calculation .
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BTU recommendation and range adapted.
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Clean installation with aesthetic finishes.
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Documented commissioning and after-sales follow-up .
Looking to replace baseboards, stabilize the temperature in a living room, or air condition an open space? AirGreen designs the HVAC solution that fits your interior and your budget.
In short
This Sharp wall-mounted heat pump installation in Rosemont–La Petite-Patrie illustrates the balance we strive for on every project: sensible comfort , silence , energy savings and a discreet finish . The owner now enjoys four-season comfort with a reliable and efficient machine, perfectly integrated into his decor.