Installation of an LG wall-mounted heat pump in Saint-Bruno

A discreet and efficient installation for four-season comfort

At AirGreen , we understand that every HVAC installation project must blend harmoniously with the building's aesthetics while ensuring optimal energy efficiency. This project in Saint-Bruno , on Montreal's South Shore, perfectly illustrates our approach: an LG wall-mounted heat pump installed on the brick facade of a century-old house, combining character and modern efficiency.

The context: modernize without distorting

The owner wanted to replace an old electric backup heating system with a more economical and environmentally friendly solution . His main criterion: preserve the exterior appearance of the red brick wall typical of houses in the area, while benefiting from the comfort of a four-season heat pump.

After assessing the home's thermal needs, our team recommended installing an LG Art Cool series wall-mounted heat pump —known for its reliability, quietness, and high efficiency, even at -25°C.

Step 1: Technical study and site preparation

Before any installation, our technicians carried out:

• A thermal load analysis to adequately size the unit's power (12,000 BTU, adapted to the surface area of ​​the ground floor and first floor);

• An inspection of the masonry in order to choose the optimal location of the compressor, minimizing vibrations and visual impacts;

• Planning the passage of the refrigeration duct and the drainage line , taking care to avoid any water infiltration into the brick.

The installation was carefully planned to maintain the symmetry of the façade and comply with Saint-Bruno municipal aesthetic standards.

Step 2: Installing the outdoor condenser

The outdoor unit was fixed on galvanized wall brackets , 30 cm from the ground to avoid direct contact with snow and winter humidity.
For perfect insulation:

• The copper refrigeration pipes were sleeved and sealed with heat shrink tape;

• The electrical wiring has been integrated into a discreet sheath in a color matching the brick;

• A drainage outlet with a natural slope has been installed to prevent freezing in winter.

Step 3: Interior Installation and Calibration

Inside, the wall unit has been placed at a strategic height to ensure even air distribution throughout the main room.
Our technicians then:

• Checked the R410A refrigerant charge level ;

• Performed a nitrogen leak test ;

• And finalized the vacuum draw to ensure a hermetic circuit before starting up.

Once the system was activated, the blowing temperature was measured at 6°C in cooling mode – perfect performance from the first use.

Step 4: Results and Customer Satisfaction

The customer immediately noticed:

• An almost imperceptible noise , both inside and outside;

• Constant thermal stability ;

• And above all, a reduction in electricity consumption of around 30% compared to its old heating system.

Thanks to the performance of the LG heat pump , the house now benefits from lasting comfort, summer and winter.

Key technical details

Why trust AirGreen?

At AirGreen , we combine technical know-how with attention to detail . Our certified installers:

• Strictly comply with electrical and environmental safety standards ;

• Use only original parts and accessories ;

• And guarantee each installation with a complete performance check before departure.

We serve all of Greater Montreal , including Montreal, Laval, Longueuil, the North Shore and the South Shore , and we are committed to providing durable, aesthetic and energy-efficient HVAC solutions .

AirGreen Air Conditioning & Heating – Experts in heat pumps and HVAC systems in Montreal and the South Shore.
Installation, maintenance and repair of wall-mounted heat pumps from LG, Fujitsu, Midea, Gree and more.