MIDEA EVOX G3 “ADD-ON” Central Heat Pump | 36000 BTU R454B
SEER2 (Seasonal Air Conditioning Efficiency)
HSPF2 (Seasonal heating efficiency)
EER2 (Instantaneous efficiency in air conditioning)
COP at -8 °C (Heating energy efficiency)
CFM (Airflow)
An ADD-ON central heat pump designed for Quebec's climate realities
At AirGreen , we have been installing HVAC systems throughout Montreal , Laval , Longueuil , and on the North and South Shores for many years. The MIDEA EVOX G3 | 36000 BTU R454B "ADD-ON" Central Heat Pump perfectly meets the needs of Quebec homeowners today: a high-performance central heating and cooling solution, compatible with existing ductwork, and capable of operating reliably even during the harshest winters.
This ADD-ON model was designed for homes already equipped with a ductwork system, often with an existing electric or gas furnace. In several projects completed by AirGreen in Laval and on the South Shore , this type of configuration allows for energy upgrades without major reconstruction of the air distribution system. The result is consistent comfort, improved energy efficiency, and direct access to provincial subsidies.
A usable capacity of 36,000 BTU in cold climates
The 36,000 BTU (3-tonne) rating isn't just marketing hype. In real-world conditions, this central heat pump maintains its heating capacity down to -30°C , with a measured output of 29,200 BTU at -8°C and up to 36,000 BTU at -15°C . In Montreal and Longueuil , where freeze-thaw cycles are frequent, this stability prevents excessive reliance on supplemental electric heating.
In several single-family homes on the North Shore , we have observed a significant reduction in the use of the auxiliary heating element compared to older systems, especially during prolonged periods below -15°C.
Inverter technology and advanced energy efficiency
The MIDEA EVOX G3 uses inverter technology designed to continuously adjust the compressor's power according to the actual needs of the home. This results in:
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SEER2: 15.830 , ensuring efficient air conditioning during Montreal 's hot and humid summers
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HSPF2: 9.415 , a key indicator for seasonal heating
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COP at -8°C: 1.93 , demonstrating stable performance even in cold weather
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ENERGY STAR® Cold Climate certification, essential for eligibility for subsidy programs
In a recent project in Boucherville , a homeowner switched from a traditional central heating system to this ADD-ON heat pump. After a full season, heating-related electricity consumption decreased measurably, while also improving the overall comfort of the home.
R-454B refrigerant: compliance, safety and reduced environmental impact
The choice of R-454B refrigerant is not insignificant. This A2L type refrigerant offers a lower global warming potential than older refrigerants, while still meeting current North American standards. For AirGreen customers in Laval and Longueuil , this means a system that complies with future regulations, without compromising performance.
From a technical standpoint, R-454B allows:
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Better overall energy efficiency
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Full compatibility with Cold Climate V6.1 requirements
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Secure integration into modern residential facilities
ADD-ON design: an ideal solution for existing homes
The ADD-ON configuration is particularly popular for replacement projects. It allows the central heat pump to be integrated into an existing system without requiring a complete overhaul of the infrastructure. At AirGreen, we installed this model in multi-story homes in Montreal where space constraints made replacements complex.
The compact dimensions of the indoor unit ( 21 x 21 x 23.5 in .) make installation easy in tight mechanical rooms or finished basements. The outdoor unit, with a sound level of 62.5 dB(A) , meets neighborhood noise standards, often a crucial factor in densely populated residential areas.
Uniform airflow and comfort
With an airflow of up to 1,900 CFM , the MIDEA EVOX G3 Central Heat Pump ensures even air distribution throughout the house. This reduces temperature differences between floors, a common problem in South Shore homes with older systems.
During installation, our technicians precisely adjust the flow rate according to the existing duct configuration. This step is essential to maximize the system's actual efficiency and avoid performance losses due to improper balancing.
WiFi connectivity and smart control
The integrated Wi-Fi module allows for precise control via a mobile app. Customers can adjust the temperature, monitor energy consumption, and customize schedules to suit their needs. In Montreal , many landlords use this feature to optimize energy use during peak periods, especially in winter.
For AirGreen, this connectivity also facilitates remote diagnostics during certain service calls, reducing response times and improving the customer experience.
LogisVert subsidy: a concrete financial advantage
The MIDEA EVOX G3 "ADD-ON" Central Heat Pump | 36000 BTU R454B is eligible for the $3,504 LogisVert provincial grant (updated November 26, 2025). For many customers in Laval and on the North Shore , this financial assistance was a deciding factor in their decision to upgrade their HVAC system.
At AirGreen, we support our clients through every step: validation of eligibility, preparation of documents and follow-up after installation.
Long-term guarantee and reliability
Reliability is a key criterion when choosing a central heat pump. This model offers:
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12 years on the compressor
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12 years on parts
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0 years on labor , with the option of an additional warranty
In our field experience, the robustness of the components and the quality of manufacturing result in remarkable stability, even after several harsh winters.
Why entrust the installation to AirGreen
Installing an ADD-ON central heat pump requires precise expertise: ductwork analysis, thermal load calculation, airflow adjustment, and appropriate electrical configuration ( 220V, MCA 29A, MOP 30A ). At AirGreen , our certified refrigeration technicians master these aspects and adapt each installation to the specific realities of the home.
Our work in Montreal , Laval , Longueuil , North Shore and South Shore demonstrates that a well-executed installation makes all the difference to the actual performance and lifespan of the system.
A balanced central solution for heating and air conditioning
The MIDEA EVOX G3 | 36000 BTU R454B "ADD-ON" Central Heat Pump is a coherent solution for homeowners who want to improve their comfort, reduce their energy costs, and modernize their HVAC system without major renovations. It combines cold-climate performance, energy efficiency, compatibility with existing systems, and tangible financial benefits.
Contact AirGreen now for a personalized assessment, detailed quote and advice tailored to your property in Montreal , Laval , Longueuil , North Shore or South Shore .