Strategic HVAC Installation in a Sainte-Thérèse Residence: Optimal Comfort Summer and Winter
At AirGreen, every HVAC installation is conceived as a unique project. In Sainte-Thérèse, on the North Shore of Montreal, we recently completed the installation of a 1.5-ton (18,000 BTU) MIDEA EVOX G3 central heat pump in a residential home requiring a powerful, compact solution adapted to Quebec's harsh winters.
This project perfectly illustrates our approach: precise needs analysis, selection of a highly efficient system, and impeccable technical execution.
Why the MIDEA EVOX G3 was the ideal choice for this property
A concrete response to Sainte-Thérèse's climate challenges
The client was looking for a system capable of:
- Maintaining a stable temperature in winter, even below -25 °C
- Offering uniform cooling in summer
- Reducing energy consumption
- Being eligible for LogisVert subsidies
The MIDEA EVOX G3 central heat pump met all these criteria, with remarkable performance:
- Heating capacity down to -30 °C
- SEER2: 19.0
- HSPF2: 10.1
- EER2: 12.5
- ENERGY STAR® certified (cold climate)
- Eco-friendly refrigerant R-454B
This combination ensures excellent energy efficiency throughout the year.
Job site analysis: technical constraints and tailored solutions
Installation on elevated structure: stability and durability
As can be seen in the photo, the outdoor unit was installed on a robust elevated steel support, directly on the balcony. This type of installation is often necessary in multi-story homes or condominiums.
Challenges encountered:
- Limited space on the balcony
- Need to reduce vibrations
- Protection against snow accumulation
Solutions provided by AirGreen:
- Use of a reinforced anti-vibration support
- Secure fastening with solid anchoring
- Optimized positioning to ensure good airflow
Management of refrigerant lines and electrical supply
The installation required clean and efficient integration of existing ducts:
- Piping: 3/8 – 3/4
- Voltage: 220V
- Duct passage through exterior brick wall
We have:
- Thoroughly inspected the ducts
- Ensured perfect sealing
- Protected the lines with weather-resistant insulating sheathing
A critical point: noise management
In a residential environment like Sainte-Thérèse, noise is a determining factor.
The MIDEA EVOX G3 offers:
- 56.5 dB(A) outdoors
- Stable operation without abrupt variations
We oriented the unit to minimize sound propagation towards neighbors and living spaces.
Indoor installation: optimizing space and airflow
Adaptable air handler configuration
The MAUSE-H18B-2A indoor unit was installed in a confined space, requiring a specific configuration.
Thanks to its modular design, we were able to:
- Adapt the configuration (optimized airflow)
- Maximize air distribution throughout the house
- Avoid major structural modifications
Uniform air distribution: real daily comfort
The client immediately noticed:
- A constant temperature
- An absence of cold or hot spots
- Smooth and non-aggressive air circulation
This type of result is directly linked to a precise and well-calibrated installation.
LogisVert subsidy: a significant financial advantage
This project was eligible for a subsidy of $1764, which represents a significant incentive for homeowners wishing to improve their energy efficiency.
At AirGreen, we support our clients in:
- Eligibility validation
- Document preparation
- File submission
Mistakes to avoid when installing a central heat pump
Through our experience in Montreal, Laval, Longueuil, on the North Shore and South Shore, certain mistakes frequently recur:
1. Undersizing or oversizing the system
Incorrect sizing directly impacts:
- Comfort
- Energy consumption
- Equipment lifespan
2. Neglecting installation
Even the best machine can become inefficient if:
- Ducts are poorly installed
- Vacuum is not properly performed
- Connections have micro-leaks
3. Ignoring building specifics
Every house is different. A standard approach does not work.
Why choose AirGreen for your HVAC installation in Sainte-Thérèse
Real field expertise
We have completed hundreds of installations in:
- Montreal
- Laval
- Longueuil
- North Shore
- South Shore
Each project enhances our ability to anticipate challenges and offer effective solutions.
Rigorous methodology
During each installation, we apply:
- Pressure testing
- Vacuum drawing (controlled microns)
- Complete system verification
- Optimized commissioning
Transparency and customer satisfaction
- Free on-site estimate
- No payment until complete satisfaction
- Honest and tailored advice
Final result: a transformed home
After installation, the client benefits from:
- Constant thermal comfort
- A significant reduction in energy consumption
- A quiet and intelligent system
The MIDEA EVOX G3 central heat pump proved to be a perfectly suitable choice for this Sainte-Thérèse residence.
Conclusion: a durable and high-performing HVAC solution for the North Shore
This project demonstrates that a well-executed HVAC installation is as important as the choice of equipment.
The combination of:
- A high-performing machine
- Professional installation
- Adaptation to local conditions
allows for a lasting and optimal result.
At AirGreen, we continue to offer customized solutions for each client in Montreal, Laval, Longueuil, the North Shore, and the South Shore, with a clear priority: real-world performance.