Installation of a Gree (R-32 range) wall-mounted heat pump in Plateau-Mont-Royal

A narrow backyard, an exterior steel staircase, and a clean, stable, and durable AirGreen installation

In Plateau-Mont-Royal , in a typical backyard bordered by a slatted fence and an exterior metal staircase , our team installed a new-generation Gree wall-mounted heat pump with R-32 refrigerant . The available space was limited: narrow passage, bordering vegetation, and frequent traffic toward the alley. We designed an HVAC system optimized for four-season comfort , quietness , and longevity —without compromising access to the steps or the aesthetics of the yard.

The context: urban constraints of the Plateau

The buildings in this area have compact and functional backyards. They often feature:

• External steel stairs leading to the upper floors;

• Fences that limit clearances around equipment;

• Tight footpaths and planting areas.

In this context, the objective is twofold: to place the condenser away from shocks and snow, while maintaining free ventilation for performance and durability.

The choice of equipment: Gree R-32, efficiency and sobriety

The Gree R-32 range offers an excellent efficiency/reliability ratio for residential wall-mounted heat pumps . The inverter compressor precisely modulates power, ensuring:

• Stable heating during prolonged cold weather in Montreal;

• Efficient air conditioning and appreciable dehumidification in summer;

• Controlled consumption thanks to high SEER/HSPF values ​​associated with the new generation R-32.

Model : The unit belongs to the Gree R-32 wall-mounted family . We keep photos of plates and serial numbers in the AirGreen customer file for warranty purposes and, if necessary, for grant applications .

A location designed to last

To accommodate the staircase and the passage, we chose a raised structure in aluminum/galvanized steel :

• Anchored feet and rigid crossbar for secure support;

• Clearance under the unit limiting the accumulation of snow, water and debris;

• Level adjusted so that the defrost flow is by gravity towards the permeable area of ​​the yard.

The unit is offset from the flight of stairs to maintain air circulation and prevent hot/cold air from being projected towards the staircase. We have validated peripheral clearances in accordance with Gree specifications: unobstructed suction at the rear and sides, unobstructed front discharge.

Refrigeration connections and power supply

Our technicians carried out a short and protected course :

• Insulated refrigerant connections (HVAC class) with careful elbows to reduce pressure losses ;

• Clean exterior cladding along the wall, for a discreet finish and UV protection ;

• Nitrogen leak test followed by deep vacuum with recording of values;

• Service switch near the unit, dedicated circuit and clear identification on the electrical panel .

This methodology eliminates the risk of micro-leaks , guarantees nominal performance and facilitates future maintenance.

Montreal Water and Winter Management

In winter, wall-mounted heat pumps release defrost water . We have planned:

• Free flow under the frame, with sufficient slope of the slabs;

• A clear space to prevent ice from forming near the steps;

• A seasonal check recommended by our HVAC maintenance team.

For blowing snow episodes, the height of the raised stand protects the fan and coil from accumulations .

Acoustics and neighborhood

On the Plateau, the proximity of homes requires noise control :

• The Gree R-32 unit remains silent at low speeds thanks to inverter control ;

• The rigidity of the support and the damping pads limit vibration transmission;

• The orientation of the blowing prevents any air recycling against the enclosure, guaranteeing peace of mind and performance.

Result: constant comfort, reduced bill

The customer now benefits from:

• Consistent comfort in both summer and winter in living areas;

• Substantial energy savings compared to electric baseboards;

• Discreet operation suitable for court life and summer dinners.

Grants and procedures

Gree R-32 high-efficiency wall-mounted heat pumps are generally eligible for incentives based on power , certification (e.g., Energy Star Cold Climate ), and location . Our team supports homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore for:

• Check model eligibility and performance;

• Compile the documents (detailed invoice, photos, serial numbers );

• Submit the file and follow the payment.

AirGreen Best Practices for a Yard with Stairs

• Maintain 12–18 in. of clearance at the rear/downstream as prescribed and never obstruct the blowing.

• Avoid closed trays without drainage: defrost water must drain freely.

• Protect connections against shocks (garden tubs, tools).

• Gently clear vegetation around the unit in spring and fall.

• Schedule annual HVAC maintenance : coil cleaning, current monitoring, checking fasteners and crawl space under the unit.

Progress of a typical project with AirGreen

1. On-site technical visit and taking of measurements (staircase heights, passage width, clearances).

2. Sizing of BTU power according to volumes and insulation; choice of the most relevant Gree R-32 range.

3. Detailed quote with options (smart thermostat, reinforced support, maintenance plan).

4. Installation in a typical day, respecting access and leaving the yard clean .

5. Instrumented commissioning and customer training on the correct settings.

6. Administrative support for grants and archiving of plates/numbers .

AirGreen: local HVAC expertise

We operate weekly in Plateau-Mont-Royal and throughout Greater Montreal . Our teams understand urban constraints (exterior staircases, narrow courtyards, alley access) and deliver neat , reliable , and scalable installations. Whether you are considering a Gree wall-mounted heat pump , a multi-zone , or a central solution , we provide turnkey support : advice, installation, maintenance, and financial assistance procedures.