In Ahuntsic-Cartierville, in the north of Montreal Island, a family owning a single-family stone and wood house wanted to completely modernize their heating and air conditioning system. Their goal: to replace aging equipment with a quieter, greener solution that could withstand Montreal's harsh winters while ensuring true comfort throughout the house.
We recommended they install a Midea EVOX G3 central heat pump using R-454B refrigerant , connected to an existing ductwork system. This solution offers efficient heating, effective cooling, and substantial energy savings.
A typical Montreal house design with a backyard
The house is located on a residential street lined with mature trees, typical of Ahuntsic-Cartierville . It includes:
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a main structure with horizontal grey cladding;
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an adjoining section in natural stone;
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a backyard with a paved walkway and landscaping;
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easy access to the side facade where the mechanical services are already located.
This environment is well suited to the installation of a central heat pump: there is enough space to position the outdoor unit away from passageways, while remaining close to the indoor mechanical room to limit the length of the refrigerant lines.
Why a Midea EVOX G3 central heat pump?
The Midea EVOX G3 central heat pump , using R-454B refrigerant , is among the most modern systems currently available on the residential market.
For this house in Ahuntsic-Cartierville, this choice was essential for several reasons:
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Central ducted system : the heat pump is coupled to an air manager connected to the existing ductwork. The entire house therefore benefits from a uniform temperature, room by room.
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High-efficiency Inverter technology : the compressor continuously modulates according to actual demand, reducing frequent starts, improving comfort and lowering electricity consumption.
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Next generation R-454B refrigerant : with a lower global warming potential, R-454B allows for high performance while reducing the environmental footprint compared to older R-410A systems.
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Cold climate performance : the EVOX G3 range is designed to maintain good heating capacity even in very cold weather, which is essential to get through Montreal winters without relying solely on auxiliary electric elements.
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Quiet operation : the side-blowing design (front fan) and the soundproofing of the unit help to greatly reduce the noise perceived in the yard and inside.
For this residence, we sized the system to approximately 2 to 3 tonnes of capacity, depending on the area, insulation and lifestyle of the family.
Details of the outdoor unit installation
The photo clearly shows the Midea outdoor unit installed along the side wall of the house, in a passageway between the courtyard and the stone annex. Several installation details are worth noting:
Elevated stand and stable base
The heat pump is mounted on a raised metal stand , itself installed on carefully fitted and leveled concrete slabs . This technical choice allows for:
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to protect the unit from the accumulation of snow and ice , which is very common in Montreal;
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to avoid direct contact with the ground, limiting premature corrosion;
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to ensure a stable base that reduces vibrations and prolongs the life of the compressor.
Around the support, we reorganized the step tiles to maintain a functional passage, while keeping sufficient clearance in front of the heat pump for air circulation.
Strategic positioning and clearances
The Midea unit is placed against a recessed wall, between the side window and the corner of the house. This positioning:
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Move the machine away from bedrooms and relaxation areas to limit perceived noise;
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reduces the length of refrigeration piping to the air manager inside;
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protects the heat pump from prevailing winds and falling ice from the roof.
We always respect the recommended clearances around the device: free space in front of the fan, on the sides and at the rear, in order to guarantee optimal performance.
Refrigeration connections and drainage
The refrigerant lines and cables are routed discreetly and safely along the structure. At the rear of the unit, a black insulated conduit directs the refrigerant lines inside.
A condensate drainage system has also been provided so that the water produced in air conditioning mode is properly directed, without splashing or puddles near the traffic area.
Integration into the central system inside
Inside the house, we connected the Midea EVOX G3 heat pump to a central air management system linked to the existing ductwork. This air management system ensures:
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the uniform distribution of heat in all rooms during winter;
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central air conditioning in summer, with efficient dehumidification;
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the possibility of integrating, if needed, an auxiliary electric element for days of extreme cold.
The programmable central thermostat allows homeowners to set temperature curves tailored to their routine, helping to maximize energy savings.
Results for the Ahuntsic-Cartierville family
Since the installation of the Midea central heat pump , the owners have noticed several tangible benefits:
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Consistent comfort throughout the house : no more rooms that are too hot upstairs and too cold in the basement.
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Significant reduction in electricity bills , particularly in winter, thanks to the superior efficiency of the heat pump compared to purely electric heating.
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Silence and discretion : the outdoor unit, located in the side courtyard, remains barely audible and blends well into the landscape of the house.
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Property value enhancement : a modern and eco-friendly heating/air conditioning system represents a significant asset when considering a potential resale.
Customers can now enjoy 4-season comfort, knowing that they have opted for a more sustainable solution better suited to Montreal's climate.
AirGreen: Your Midea heat pump expert in Montreal
At AirGreen , we support homeowners in Ahuntsic-Cartierville and throughout Greater Montreal in the transition to more efficient heating and air conditioning systems .
For each project, we:
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Let's analyze the house (insulation, layout, existing system);
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We recommend the most suitable Midea capacity and model , such as the EVOX G3 in this case;
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Let's plan a clean and safe installation, taking into account the aesthetics of the property;
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let's carry out a complete and documented commissioning;
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We ensure a solid after-sales service: maintenance, troubleshooting, usage advice and support for subsidy programs where applicable.
If you live in Ahuntsic-Cartierville or elsewhere in Greater Montreal and wish to upgrade your heating system with a Midea central heat pump , our team will be happy to assess your project and offer you the ideal solution.