Four-season comfort and careful finishing: a perfectly integrated interior headboard above a patio door
Customer context: renovate and air condition without compromise
At AirGreen , we are supporting a brick plex owner in Rosemont–La Petite-Patrie who is renovating the main floor. His goal: to stabilize the temperature , improve air quality and reduce the energy bill , while maintaining a discreet integration in a very bright living room. We selected a Gree wall-mounted heat pump , Vireo R32 range , known for its reliability in Montreal's cold and its R-32 refrigerant , more efficient than R-410A.
The inner head: strategic position, optimized airflow
A smart location above a patio door
The wall-mounted headboard sits above a large sliding patio door . This setup ticks several key boxes:
-
Uniform distribution : the device blows in the axis of the passage area and runs along the bay window , which breaks the cold wall effect in winter and effectively dehumidifies in summer.
-
Protection of finishes : height designed to respect sufficient upper clearance and allow the front panel to be fully opened for maintenance of washable filters .
-
Acoustic comfort : the head operates mainly at intermediate speed , very quiet , which is ideal for a living room opening onto the kitchen.
We ensure that nothing obstructs the suction above (shelves, cabinets, light fixtures). The high location, combined with the natural stratification of the air, promotes a homogeneous mixture without any drafts felt at seat height.
Finishing and preparation of the site
The project is part of an active renovation : plastic protections, frames to be redone, materials stored. We protect the work area , drill while limiting vibrations on the rail, and leave a clean site so that the cabinetmaker can close the perimeter (moldings/gyproc).
The through-hole behind the unit receives a sheath , a waterproof seal and a vapor barrier on the interior side — essential to prevent air infiltration and condensation in the wall.
Equipment installed and configured
Technical choice
-
Type: wall-mounted heat pump (mini-split) single zone .
-
Brand: Gree .
-
Range: Vireo R32 .
-
Target capacity: 12,000 to 18,000 BTU depending on the load calculation (glazed surface, insulation, infiltration, room use).
-
Refrigerant: R-32 (higher seasonal efficiency and reduced GWP).
-
Key functions: extreme cold heating, dehumidification , automatic restart , inverter modulation.
Our commissioning adjusts the fan speed , the shutter angle and the defrost setpoint according to the facade context and the acoustics of the room, in order to obtain an ideal balance between comfort, noise and consumption.
Connections, routes and electricity
Refrigeration connections: short, straight, insulated
The path between the indoor head and the wall-mounted condenser on the rear facade remains direct : outlet behind the unit, external vertical capping , large radius bends to preserve the dynamic charge of the R-32 refrigerant .
-
Estimated total length : 10 to 12 m , perfectly within the factory sizing range of the Vireo.
-
Closed cell line insulation + UV tape under capping, to prevent thermal gains and condensation in summer.
Condensate management: gravity
The drainage slope is tested upon installation: gravity drain to the outside, without a condensate pump . This solution is quieter and requires less maintenance . We install a discreet non-return valve to prevent any backflow of outside air .
Power supply and disconnector
Externally, the unit is powered via a dedicated 240V circuit , protected at the panel according to the Canadian Electrical Code . A watertight disconnect switch ( NEMA 3R ) is attached near the condenser for maintenance safety .
The front condenser: robust, stable, prepared for winter
Although the main thing here is inside, winter performance depends on the outdoor installation :
-
Support : wall brackets with steel load-bearing posts to limit vibrations in the brick and increase rigidity in windy conditions.
-
Clearances : rear and side respected for efficient defrosting , without air recycling .
-
Height : unit out of snow and splash zone; free flow of thaw water.
Results: immediate comfort and humidity control
Dynamic auxiliary heating and fine air conditioning
In winter, the Vireo R32 offers continuous heating with modulation : fewer stops/restarts , a stable temperature , and low noise . In summer, the Dry mode addresses the typical humidity of Montreal: the setting can be lowered by 0.5 to 1°C without losing comfort thanks to dehumidification .
Visual integration
The white shell of the head blends in above the aluminum joinery. Once the plasterwork is finished, the whole gives a clean line , with direct front access for the filters and the battery .
AirGreen Tips for a Head Above a Patio Door
1) Respect the clearances
We maintain sufficient ceiling clearance for suction and opening the facade. Too close to the ceiling, the head recycles hot air : loss of efficiency and reduced comfort .
2) Direct the breath
We adjust the horizontal shutter to sweep the length of the room and avoid a direct flow onto people sitting near the bay window.
3) Plan the finish
From the technical visit, we coordinate the drilling and passages with the cabinetmaking and painting: clean and lasting result.
4) Protect the drain
A poorly oriented elbow or insufficient slope results in droplets or odors . We test the flow before closing and install a backflow preventer .
5) Anticipate winter
Outside: Clearances , height , wiring and capping resistant to freezing. Inside: Inform the occupant about the defrost cycle (normal noise and momentary stoppage).
Recommended HVAC maintenance
-
Internal filters : rinse every 4 to 8 weeks during the season.
-
External battery : gentle spring rinse , without high pressure .
-
Annual AirGreen inspection : electrical tightening, refrigerant check, drain test, evaporator cleaning, support and capping check.
Proper maintenance maintains actual SEER/SCOP , extends life and preserves warranties .
Grants and Eligibility
High-efficiency , cold-performance R-32 wall-mounted heat pumps can provide access to assistance programs in Quebec. We verify the precise configuration (capacity, certification, low-temperature performance) and guide the customer through the process. The goal: maximize assistance without compromising sizing .
Why AirGreen for your project in Montreal, Laval, Longueuil, North Shore and South Shore?
Field expertise
We are experts in Montreal's brick buildings , high-rise access , narrow aisles , and weather constraints . Each project is sized and configured for your space, not a catalog.
Finishing and follow-up
We deliver a clean HVAC installation , usage advice , and, if desired, a maintenance contract . Our service aims for durability , efficiency , and discreet comfort day after day.
FAQ — Similar cases
Can I place my head even closer to the ceiling?
We do not recommend: a minimum clearance is required for suction and maintenance . Too close and you lose efficiency and silence .
What if I want to cover a second room?
Depending on the configuration, we offer a Gree R-32 multi-zone or a second single-zone . We compare costs , line lengths , noise and flexibility .
Doesn't the bay window create condensation in the summer?
On the contrary, dehumidification near the glazing reduces humidity along the wall and improves perceived comfort .
Conclusion
With this Gree Vireo R32 installed above a patio door in a Rosemont–La Petite-Patrie plex, we offer a perfect integration between aesthetics , performance and ease of maintenance . The short refrigeration path , the gravity drain and the reinforced exterior support ensure a silent , efficient system ready for the Montreal winter .