An exemplary exterior installation on a brick facade for four-season comfort without compromising character
At AirGreen , we were commissioned to equip a plex in Plateau-Mont-Royal with a latest-generation Sharp wall-mounted heat pump . The goal: to provide reliable heating and precise air conditioning , while respecting the typical brick architecture of the neighborhood's interior alleys. The result combines efficiency , silence , and a neat finish .
Customer context and choice of equipment
The owner wanted:
-
a compact and energy-efficient system capable of providing comfort for a main living space and an adjoining kitchen;
-
a discreet installation to preserve the aesthetics of the landscaped backyard (tiled outdoor counter, white joinery);
-
a sustainable solution for Montreal winters, with good capacity maintenance at low temperatures.
We recommended a Sharp wall-mounted heat pump ( ZU1 range, R-32 ), known for its inverter modulation, fine temperature control and low noise level . In continuous regulation, the device limits on/off cycles, which reduces power consumption and increases the longevity of the components.
Installation details: precision and cleanliness above all
Installation of the outdoor condenser
The condenser is fixed on galvanized wall brackets to the brick wall, at a safe height above the exterior work surface. This position:
-
frees up floor space for traffic and maintenance;
-
improves convection around the exchanger, therefore efficiency;
-
Keeps the device away from splashing water and debris.
Anti-vibration pads are integrated to filter micro-vibrations and preserve the peace and quiet of occupants and neighbors—a crucial point in the Plateau 's interior courtyards.
Power supply and electrical protection
In the immediate vicinity of the condenser, we installed a waterproof external disconnect box (weatherproof cover). This configuration makes maintenance work safer and meets RBQ/CSA requirements . The power cable runs vertically, anchored to the masonry, with stainless steel anchors to resist freezing and thawing.
Refrigeration connections and drainage
The refrigeration pipes (UV insulated copper) pass through the masonry behind the unit to minimize the apparent length and protect the network. The internal condensate drain is gravity -driven, eliminating the need for a pump, therefore less maintenance and zero additional noise . The drilling was carried out at a slight slope to promote evacuation and prevent any accumulation of moisture in the wall.
Respect for architectural finishes
The brown brick wall and the stone tiles of the exterior backsplash are preserved: our drilling follows the mortar joints to protect the brick and simplify any possible restoration. The passages are sealed with a freeze-thaw compatible elastomeric mastic , preventing water infiltration and air bridges .
Interior: homogeneous diffusion and discreet integration
The wall-mounted fan head (not visible in the photo) is positioned to sweep the open area without blowing directly onto the rest areas. The adjustable vanes and fine modulation allow:
-
uniform cooling in summer;
-
stable heating in winter, with a gentle and continuous air flow;
-
a reduction in temperature differences between kitchen and living room.
The interior noise level remains at a whisper , ideal for teleworking and quiet evenings.
Energy performance and savings
The Sharp heat pump – ZU1 range (R-32) offers:
-
high seasonal efficiency thanks to the inverter compressor and high surface exchanger;
-
maintaining capacity in cold weather , adapted to the Montreal climate;
-
a lower GWP refrigerant (R-32) , which is environmentally beneficial.
Combined with precise calibration of the refrigeration flow , these characteristics result in:
-
lower electricity bills compared to baseboard heaters or traditional air conditioners;
-
reduced mechanical wear ;
-
an accelerated return on investment , especially when the use covers heating + air conditioning .
Grants and Eligibility
Depending on the exact configuration and current criteria , the wall-mounted heat pump may be eligible for energy support programs in Quebec. We always support our customers in:
-
eligibility verification ;
-
preparation of documents ;
-
optimization of related work (waterproofing, weatherstripping) which improves performance and facilitates procedures.
Our teams are monitoring the progress of the programs in order to maximize the amounts for owners in Greater Montreal ( Montreal , Laval , Longueuil , North Shore , South Shore ).
Safety, durability and service
Each AirGreen installation comes with:
-
a nitrogen leak test , followed by a deep vacuum ;
-
a control of the intensities and verification of the connections ;
-
a complete start-up (probes, blowing temperatures, superheating/subcooling);
-
HVAC maintenance tips : filter cleaning, condenser clearing, seasonal inspection.
We schedule a maintenance reminder to maintain performance , limit consumption and prevent breakdowns .
Construction site challenges and solutions provided
Constraint 1: limited space in the backyard, with woodwork and outdoor worktop.
Solution: installation on brackets at a specific height , allowing optimal air flow and maintenance access , while clearing the work surface .
Constraint 2: old masonry subject to freezing and thawing.
Solution: stainless steel mechanical anchors, joint drilling, elastomer sealing and vapor barrier membrane at the crossing point.
Constraint 3: potential noise pollution for the neighborhood.
Solution: anti-vibration pads , correct alignment and tightening torque , plus controlled rear clearance to limit air recirculation (source of whistling and reduced efficiency).
Result: immediate comfort and impeccable finish
The owner now enjoys stable comfort all year round . The Sharp appliance blends naturally into the exterior decor, without weighing down the facade. Consumption is controlled and the noise level remains very low , even during peak heat waves or winter thaws.
AirGreen Best Practices for a Successful HVAC Installation in Plateau
-
Always preserve the brick : drilling at the joints , flexible sealing.
-
Condenser elevation : reduces snowfall, promotes convection, simplifies maintenance .
-
Regulatory clearances : air must circulate freely around the exchanger.
-
Gravity drainage is preferred for reliability and silence .
-
Annual maintenance : cleaning of the condenser, interior head filters, electrical check .
Why entrust us with your project in Greater Montreal?
-
Specialists in HVAC installation in urban contexts (plexes, condominiums, narrow streets).
-
Certified teams , standardized procedures, consistent quality .
-
Support for subsidies , sizing and usage advice .
-
Service in Montreal, Laval, Longueuil, North Shore, South Shore .
For a project combining aesthetics , efficiency and durability , our team puts the science of comfort at the service of your home.