Installation of a 3-ton MIDEA EVOX G3 central heat pump in Saint-Bruno
HVAC installation in Saint-Bruno: MIDEA EVOX G3 3-ton central heat pump. Winter performance, energy efficiency, and LogisVert subsidy available on the South Shore.
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The job on one screen
The unit’s data sheet
The range as published on airgreen.ca: pick a size to see its capacity in deep cold.
| Size | Heating at −8 °C | Heating at −15 °C | Coldest certified point | COP at −15 °C | SEER | HSPF | Indicative LogisVert aid |
|---|---|---|---|---|---|---|---|
| Midea EVOX G3 · 1.5 tons | 14,700 | 18,600 | −30 °C: 11,800 | 2.12 | 19.0 | 10.1 | $1,764 |
| Midea EVOX G3 · 2 tons | 20,800 | 20,600 | −30 °C: 12,100 | 2.14 | 18.6 | 10.0 | $2,496 |
| Midea EVOX G3 · 2.5 tons | 24,000 | 33,200 | −30 °C: 17,900 | 1.97 | 17.2 | 10.8 | $2,880 |
| Midea EVOX G3 · 3 tons | 33,000 | 37,400 | −30 °C: 27,600 | 1.9 | 18.0 | 10.0 | $3,960 |
| Midea EVOX G3 · 4 tons | 39,500 | 48,000 | −30 °C: 27,200 | 2.0 | 17.5 | 9.5 | $4,740 |
| Midea EVOX G3 · 5 tons | 45,000 | 54,000 | −30 °C: 37,300 | 1.9 | 17.5 | 9.5 | $5,400 |
Data read live from the airgreen.ca page of each size (NEEP / AHRI certified performance). When the title names the installed size, it is highlighted; otherwise the whole range is shown. The aid shown is today’s, using Hydro-Québec’s rule ($120 per 1,000 BTU/h at −8 °C); amounts quoted in the article date from its publication. Only Hydro-Québec confirms the assistance granted.
The article, chapter by chapter
A high-performance HVAC solution perfectly suited for a Saint-Bruno residence
At AirGreen, we recently completed a full HVAC installation of a MIDEA EVOX G3 3-ton central heat pump in a residential property located in Saint-Bruno, on Montreal's South Shore. This project perfectly illustrates the modern demands of Quebec homeowners: energy efficiency, uniform comfort, performance in extreme cold, and long-term cost reduction.
From the first technical visit, it was clear that the client was looking for a solution capable of replacing an old central system, while improving air distribution and thermal stability throughout the house. Thanks to our field expertise and rigorous needs analysis, we recommended the MIDEA EVOX G3, a model known for its robustness and its ability to perform down to -30°C, making it a strategic choice for Quebec's harsh winters.
Custom installation with mastered technical constraints
Initial analysis and specific project challenges
The residence presented several typical technical challenges for South Shore homes:
- Existing ducts requiring adaptation to optimize airflow
- Restricted mechanical space in the basement
- Need for silent integration in a dense residential environment
- Clear objective to reduce energy consumption without compromising comfort
Our team performed a complete ventilation system assessment, including static pressure, duct configuration, and available electrical capacity. This step is essential to ensure that the central heat pump operates at its full potential.
Outdoor unit installation and space management
The outdoor unit, visible in the image, was installed on robust wall brackets to:
- Protect the equipment from snow accumulation
- Ensure optimal air circulation
- Minimize vibrations transmitted to the structure
We also paid particular attention to the aesthetic management of refrigerant pipes and wiring, in order to preserve the exterior appearance of the property.
MIDEA EVOX G3: A central heat pump designed for the Quebec climate
Energy performance and adapted power
The MIDEA EVOX G3 3-ton (36,000 BTU) offers a remarkable combination of power and efficiency:
- SEER2: 17.7
- HSPF2: 10.0
- EER2: 12.0
- ENERGY STAR® Cold Climate Certification
These performances lead to a significant reduction in energy costs, particularly in regions such as Montreal, Laval, Longueuil, North Shore, and South Shore, where climatic variations are significant.
Reliable heating down to -30°C
One of the main advantages of this heat pump is its ability to maintain stable performance even during periods of extreme cold. Unlike some systems that lose efficiency below -20°C, the EVOX G3 continues to provide consistent heat.
In this Saint-Bruno project, this meant:
- Less reliance on auxiliary heating
- Uniform temperature in all rooms
- Increased comfort even during cold snaps
Inverter technology and smart comfort
Precise regulation and energy savings
Thanks to Inverter technology, the compressor continuously adjusts its speed according to the building's actual needs. This allows for:
- Reduced on/off cycles
- Optimized energy consumption
- Stable indoor temperature
In this installation, the client immediately noticed a difference: no more abrupt temperature variations, but rather constant and pleasant comfort.
Integrated WiFi and remote control
The heat pump is equipped with an integrated WiFi module, allowing for:
- Remote control via mobile application
- Personalized hourly programming
- Energy consumption monitoring
This type of control is particularly appreciated by modern homeowners who wish to optimize their comfort while keeping an eye on their energy expenses.
Eco-friendly R-454B refrigerant: a responsible choice
The MIDEA EVOX G3 uses R-454B gas, known for its low environmental impact:
- Reduced GWP (Global Warming Potential)
- Compliance with new environmental standards
- More sustainable alternative to older refrigerants
At AirGreen, we systematically prioritize solutions that combine performance and environmental responsibility.
AirGreen installation process: rigor and precision
Key project steps
For this installation in Saint-Bruno, our team followed a strict protocol:
- Complete inspection of the existing system
- Precise sizing (3 tons)
- Installation of the indoor unit (air handler)
- Refrigerant line connection (3/8 - 3/4)
- Vacuum draw and micron test
- Commissioning and calibration
Each step is carried out according to the highest standards of the HVAC industry.
Importance of vacuum draw (micron test)
We always emphasize this critical step:
- Elimination of moisture in the system
- Prevention of micro-leaks
- Guaranteed compressor longevity
A poorly executed vacuum draw is one of the most common errors in heat pump installations.
LogisVert subsidy: a major financial advantage
For this installation, the client was able to benefit from a LogisVert provincial subsidy of up to $3720.
We assist each client with:
- Eligibility validation
- Document preparation
- File follow-up
This significantly reduces the total project cost.
Client feedback and observed results
A few weeks after the installation, the client shared their observations with us:
- Significantly improved thermal comfort
- Noticeable reduction in electricity costs
- Silent operation of the outdoor unit
- Better indoor air quality
This type of feedback confirms the relevance of the MIDEA EVOX G3 in residential contexts like that of Saint-Bruno.
Practical advice for future buyers
Choosing the right central heat pump
Here are some essential elements to consider:
- Adequate sizing (BTU)
- Compatibility with existing ducts
- Heating performance (cold climate)
- Sound level
- Available subsidies
Mistakes to avoid
- Choosing an undersized or oversized system
- Neglecting installation quality
- Ignoring the importance of HVAC maintenance
- Not checking warranties
Why trust AirGreen for your HVAC installation
At AirGreen, we distinguish ourselves by:
- In-depth expertise in central heat pumps
- Clean, precise, and durable installations
- Complete transparency in our quotes
- Fast and efficient after-sales service
We operate throughout Montreal, Laval, Longueuil, the North Shore, and the South Shore, with an approach focused on real customer satisfaction.
Conclusion: a durable, high-performance, and cost-effective installation
The installation of this MIDEA EVOX G3 central heat pump in Saint-Bruno represents a strategic investment for comfort and energy efficiency. Thanks to its cold climate performance, advanced technology, and available subsidies, it stands out as a choice solution for Quebec residences.
At AirGreen, we are proud to support our clients at every stage of their project, with rigor, expertise, and commitment.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Baseboards and electric furnaces turn 1 kWh of electricity into 1 kWh of heat. A heat pump delivers more: that is its COP. At Hydro-Québec’s rate D (11.142¢/kWh above 40 kWh a day, since 1 April 2026):
Hydro-Québec: a heat pump can be up to three times more efficient than baseboards for heating in the colder months.
Estimate per kWh of heat, at the chosen temperature, using the certified COP from the product page. Taxes, access charge and backup heat not included.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
The equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
Access protected, old unit disconnected and removed when it is being replaced.
Electric furnace or air handler, with its coil, connected to the supply and return ducts.
On a level base, raised above the snow, with free space all around.
Insulated, they enter through a sealed opening and run to the indoor coil.
Dedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
Leak test, vacuum, start-up, airflow check and a test of both modes.
Filter, thermostat, backup heat in extreme cold: what to know before winter.
- The on-site estimateWe look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
- The quoteThe equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
- Getting readyAccess protected, old unit disconnected and removed when it is being replaced.
- The indoor moduleElectric furnace or air handler, with its coil, connected to the supply and return ducts.
- The outdoor unitOn a level base, raised above the snow, with free space all around.
- The refrigerant linesInsulated, they enter through a sealed opening and run to the indoor coil.
- Electrical and thermostatDedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
- Tests and start-upLeak test, vacuum, start-up, airflow check and a test of both modes.
- The walkthroughFilter, thermostat, backup heat in extreme cold: what to know before winter.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
It captures or rejects heat outside. It sits on a level base, above the snow, with free space all around.
The insulated refrigerant lines enter the house through a sealed opening and run to the indoor coil.
A shut-off switch near the outdoor unit isolates it safely for service.
Sitting on the indoor module, it moves heat between the house air and the refrigerant.
Electric furnace or air handler: its fan pushes air through the ducts. The electric backup takes over in extreme cold.
Supply ducts bring air to the rooms; returns bring it back to the unit. Their condition matters as much as the unit's.
It protects the coil and the fan. A dirty filter cuts airflow, so it gets checked regularly.
It runs the heat pump and the backup heat. It must be compatible with the installed system.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Check the indoor module's filter.
- Clear winter debris from the outdoor unit.
- Test cooling before the heat arrives.
- Check the filter more often in peak season.
- Keep registers and returns clear.
- Watch condensate drainage near the coil.
- Change or clean the filter.
- Test heating and backup heat before the cold.
- Book periodic maintenance.
- Clear snow around the outdoor unit.
- Store nothing in front of the indoor module.
- Note any unusual noise or smell and call us.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. A central heat pump uses the house's ducts.
It connects to the existing ducts to heat and cool everywhere.
2. In extreme cold, electric backup heat can take over.
The indoor module (furnace or air handler) works with the heat pump and takes over in extreme cold.
3. The filter only gets changed when the unit breaks down.
A dirty filter cuts airflow. It gets checked regularly.
4. You can reuse the old unit's size without checking.
The house may have changed: insulation, windows, added rooms. Capacity is confirmed on site.
0 / 4 right answers
What people ask us about this kind of work
Can I keep my current ducts?
What happens in extreme cold?
Furnace, air handler, ducted: what is the difference?
Are there grants?
Do I need a permit?
How much can I save?
How is the LogisVert assistance calculated?
Will my current thermostat work?
Central or wall units: which one?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).