A brick balcony transformed into an ultra-clean technical area: optimization, silence and reliable heating for a Montreal condo
Project context and comfort objectives
At AirGreen , we are modernizing a typical Rosemont–La Petite-Patrie condo with a GREE wall-mounted heat pump designed to provide heating and cooling for the living area adjacent to the patio door. The client's request is clear: stable temperature , minimal noise , careful and compliant HVAC installation , all designed for our Montreal winters.
Why a GREE wall-mounted heat pump for this condo?
-
Four-season efficiency : high cooling efficiency in summer and maintenance of heating capacity in cold weather.
-
Modularity : mini-split format ideal for Montreal condos and plexes.
-
Reliability : proven components, precise control, easy HVAC maintenance.
-
Recent R-32 versions : in our current offering, we favor recent GREE ranges over R-32 (e.g. Livo R32, Vireo R32, Clivia R32) for a better environmental profile and high performance at low temperatures.
Technical note: The exact unit reference is not displayed to the reader; we specify, depending on the case, a range of 9,000–18,000 BTU for open condo areas, validating the load by calculation. This approach ensures accurate sizing without overconsumption.
Reading the site: a brick balcony, patio door and immediate interior access
-
Brick facade with wooden balcony: a common typology in Montreal.
-
Outdoor unit on raised support : anti-corrosion metal base for clearance, water drainage and maintenance .
-
Short and direct connection : crossing the wall near the patio door → limited cooling pressure loss and clean finish .
-
Dedicated power supply : installation with dedicated circuit breaker and compliant wiring ; the existing socket remains for normal domestic use.
-
Noise and vibration management : anti-vibration pads and support wedging to preserve the peace and quiet of the neighborhood.
Key steps of our installation (AirGreen process)
1) Preparation and clean drilling
-
Precise tracing of the passage of the refrigerant connections (insulated copper), the communication cable and the condensate drain of the indoor unit.
-
Core drilling in the brick with sleeve, controlled slope for gravity flow and external waterproofing against water infiltration.
2) Installation of the outdoor unit
-
Raised support upgrade (useful height for snow blowing and maintenance).
-
Compliance with the manufacturer's recommended clearances for air intake/discharge.
-
Short path and discreet light gray cover to protect the connections.
3) Refrigeration and electrical connections
-
Controlled bending of tubes, deep vacuum, pressure gauge leak test.
-
Wiring on a dedicated circuit with suitable protection, in accordance with current standards.
4) Commissioning and balancing
-
Checking pressures , calibrating ventilation , setting modes and instructions .
-
Explanation to the customer: good usage practices, HVAC maintenance , and energy saving benchmarks.
Result: immediate comfort and careful integration
-
Even heating of the living room, reduction of temperature variations near the patio door.
-
Very low exterior noise level thanks to the detached support and the quality of the GREE fan.
-
Aesthetics : short connections, clean hood, no superfluous visible sheathing.
Technical focus: details visible on this installation
-
Raised support : approximately 40–50 cm from the decking to facilitate winter defrosting and maintain airflow.
-
Continuous casing up to the point of penetration; curvature radius respected to avoid mechanical stress.
-
Condensate management : suitable external drainage; inside, we favor gravity flow when the architecture allows it, otherwise a silent condensate pump .
AirGreen Best Practices for Montreal Balconies
-
Vibrations : studs and torque tightening → no buzzing transmitted to the structure.
-
Rear and side clearance : maintain distances for optimal airflow .
-
Snow and ice : elevation, open water path under the unit, snow removal from the balcony if necessary.
-
Sealing of perforations : exterior elastomer seal + vapor barrier on the interior side.
-
Maintenance : cleaning of filters , annual inspection of the refrigeration circuit and the hood .
Eligibility for programs and choice of ranges
-
Recent high-efficiency R-32 wall-mounted heat pumps , capable of maintaining heat at around −25°C/−30°C , are often integrated into the grant programs available in Quebec.
-
In our range we offer GREE R-32 series (Livo, Vireo, Clivia, Sapphire, etc.). We confirm eligibility upon submission based on power (BTU) and performance data sheet .
What if your accommodation is different?
-
Larger open area : possibility of upgrading to 15,000–18,000 BTU or considering a Multi-Zone Heat Pump if several rooms need to be served.
-
North Shore / South Shore / Laval House : same HVAC installation standards with adaptation to volumes, access and roof constraints.
-
Reinforced acoustic requirements : addition of specific insulators and optimization of fan speed .
What we guarantee
-
Serious load study and sizing (avoids short cycles).
-
Impeccable finish : aligned cowling, stainless steel fixings, clean wiring .
-
After-sales service : seasonal HVAC maintenance , usage advice, parts and labor guaranteed according to the brand.
Owner's Attention Points (Useful Checklist)
-
Keep 60–90 cm free in front of the outdoor unit for airflow.
-
Provide clear access for maintenance.
-
Clean the internal filters every 4–8 weeks during use.
-
In winter, avoid snow accumulation in front of and under the unit.
-
Schedule annual maintenance to maintain yields and durability .
In summary
This GREE HVAC installation in Rosemont–La Petite-Patrie illustrates what we implement throughout Greater Montreal (Montreal, Laval , Longueuil , North Shore , South Shore ): precise work, efficient wall-mounted heat pumps and respectful integration of Montreal's brick buildings and balconies. Do you want stable comfort , a better controlled energy bill and an installation that looks great? We take care of it, from analysis to ongoing service .