Installation of a Midea EVOX G3 central heat pump in Rosemont–La Petite-Patrie
Discover how AirGreen modernized a home in Rosemont–La Petite-Patrie with a Midea EVOX G3 central heat pump. Outdoor installation on a wall bracket, integration with existing ductwork, and optimal comfort in all seasons.
Take a tour of the installation
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.
In the residential neighborhood of Rosemont–La Petite-Patrie , we had the pleasure of modernizing the comfort of a single-family home by installing a Midea EVOX G3 central heat pump . The client's objective was clear: to replace a traditional, energy-intensive system with a high-performance, quiet solution ready to withstand Montreal winters, while taking advantage of the existing air distribution system.
Context: a typical brick house in Rosemont
The property is a red brick house with a basement, typical of the quiet streets of Rosemont. The client wanted:
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A central system that heats and cools the entire house via existing ducts.
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A discreet and clean installation on the outside, without harming the aesthetics of the facade.
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A device capable of heating efficiently in very cold weather while reducing electricity bills.
The solution proposed by our team: a Midea EVOX G3 central heat pump , a high-efficiency model using the new generation R-454B refrigerant, designed to offer excellent performance in both heating and cooling modes.
Why a Midea EVOX G3 central heat pump?
Midea's EVOX G3 range stands out thanks to several advantages that make it a logical choice for this type of housing:
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Centralized comfort : a single system serves all rooms via ducts; no more significant temperature variations from one room to another.
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High-efficiency technology : high-performance compressor and advanced control electronics to optimize consumption according to actual demand.
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Quiet operation : the large side fan is designed for high airflow while limiting noise levels in the yard.
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Compatibility with Quebec winters : the design of the range ensures good heating performance at low temperatures, particularly important in Montreal.
By retaining the existing ducts, we were able to limit the extent of the interior work, while offering a significant gain in energy performance compared to the old system.
An outdoor installation designed for our winters
The Midea outdoor unit was installed on a raised wall bracket , securely anchored to the house's concrete foundation. This choice wasn't purely aesthetic; it addressed several technical constraints specific to Montreal's climate.
Raising the roof and creating clearances
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The heat pump is raised above ground level to avoid the accumulation of snow and ice in winter.
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The clearances around the device are respected to ensure good air circulation and facilitate maintenance.
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Positioning it along the brick wall protects the unit from prevailing winds while maintaining easy access for our technicians.
Vibration and noise management
The metal bracket is equipped with anti-vibration pads and robust fixings. Result:
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Less vibration transmitted to the structure of the house.
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A discreet operation for both the owner and the neighborhood.
Finishing of refrigeration and electrical connections
The refrigerant pipes and cables are neatly grouped together in a vertical protective cover, ensuring:
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Better protection against shocks and bad weather.
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A clean and professional aesthetic , in perfect harmony with the brick facade.
There is also an externalized electrical protection device, allowing for a rapid power cut-off during service operations.
Integration with the existing forced air system
Inside, the Midea EVOX G3 central heat pump is connected to an air handling unit using the existing ductwork in the house. We have:
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Checked the airtightness and sizing of the ducts , in order to guarantee optimal airflow to each room.
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Adjusted the device settings to ensure a smooth transition between heating and cooling modes.
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It is designed to be compatible with a possible auxiliary electric element , to ensure safe heating in case of extreme cold.
The central thermostat now offers the customer simple and intuitive control , with time slots and temperature settings adapted to their lifestyle.
Performance, comfort and energy savings
With its Midea EVOX G3 central heat pump, the homeowner benefits from:
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Four-season comfort : efficient air conditioning in summer, efficient heating in autumn, winter and spring.
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With better energy efficiency compared to a traditional electrical system or an old furnace combined with a conventional air conditioner.
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More uniform air in all rooms thanks to ducted distribution.
In the medium term, reducing energy consumption makes it possible to recoup the investment , while also reducing the carbon footprint of the house.
Maintenance and longevity: the role of AirGreen
To ensure the longevity of your Midea central heat pump, we recommend:
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An annual system inspection : cleaning of the outdoor unit, checking of electrical connections, control of airflow and operating parameters.
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Maintaining sufficient clearance around the unit (no accumulated snow, debris or vegetation stuck to the condenser).
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Regular replacement of the central air system filters .
By choosing AirGreen, the customer benefits from comprehensive support : pre-purchase advice, certified installation, after-sales follow-up, and reminders for preventative maintenance. Our goal is simple: to ensure that the Midea EVOX G3 heat pump remains reliable, efficient, and quiet for many years to come.
Conclusion: A Rosemont home ready for the future
This Midea EVOX G3 central heat pump installation in Rosemont–La Petite-Patrie perfectly illustrates what we love to achieve at AirGreen:
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projects adapted to the existing architecture ,
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careful integration of the equipment,
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and lasting comfort for our customers, in summer as well as in winter.
If you live in Montreal, the South Shore, the North Shore or Laval and wish to modernize your heating and air conditioning system with a Midea central heat pump , our team will be happy to analyze your home and offer you the best solution for your situation.
The unit on this job, in figures
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 big day, step by step
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 would it look like at your place?
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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).