Installation of a 2-ton MIDEA EVOX G3 central heat pump in Duvernay, Laval
AirGreen installs a 2-ton MIDEA EVOX G3 central heat pump in Duvernay, Laval: clean wall mounting, protected lines, central comfort, and lasting HVAC expertise.
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.
A compact, clean, and durable central installation in a mature residential area of Duvernay
In Duvernay, within a well-established residential neighborhood of Laval, our AirGreen team recently installed a 2-ton MIDEA EVOX G3 central heat pump. This system was chosen to offer an excellent balance of comfort, energy efficiency, reliability, and discrete outdoor integration.
The project presented a typical context for Duvernay homes: a brick facade, limited outdoor space, an exposed concrete foundation, existing openings to respect, and the necessity of installing the outdoor unit without detracting from the building's aesthetics or access around the house. As seen in the photo, the outdoor unit was installed on wall brackets, at an adequate height, with clean vertical routing of the refrigerant and electrical lines.
This type of HVAC installation requires more than just a mechanical connection. It necessitates planning for clearance, bracket strength, line protection, drainage, future HVAC maintenance access, and system performance during the harsh winters of Montreal, Laval, Longueuil, the North Shore, and the South Shore.
Why a 2-ton MIDEA EVOX G3 for this Duvernay home?
The MIDEA EVOX G3 is a central heat pump designed to meet the needs of homeowners who want to improve their comfort without having multiple wall-mounted units in the house. In this project, the central format allowed for air distribution through the existing ductwork, while modernizing heating and air conditioning with a more efficient solution.
The 2-ton size is very suitable for many medium-sized homes when dimensioning is confirmed according to the building's configuration, insulation, fenestration, solar orientation, and the actual needs of the occupants. At AirGreen, we always emphasize this point: a heat pump that is too small will constantly operate at full capacity, while an oversized heat pump risks providing inconsistent comfort and less effective dehumidification in summer.
The MIDEA EVOX G3 is particularly attractive to homeowners looking for:
- a discreet central solution;
- good heating performance;
- uniform air conditioning;
- technology adapted to Quebec winters;
- integration compatible with various residential configurations;
- an option eligible for certain subsidies depending on the exact model, the installed pairing, and current criteria.
In this specific case, the client's priority was clear: to replace or modernize the home's central comfort system with a reliable, well-installed machine capable of maintaining a stable temperature without adding unnecessary noise around the property.
An outdoor installation on brick: precision, solidity, and finish
One of the most important elements of this installation in Duvernay was the positioning of the outdoor unit. The brick facade and concrete foundation required a meticulous approach. Poor fastening, misaligned pipe routing, or a unit placed too close to the ground can create long-term problems: vibrations, snow accumulation, maintenance difficulties, or premature wear.
We therefore opted for installation on robust wall brackets, allowing the unit to be kept well above ground level. This decision is particularly relevant in the greater Montreal area, where snow accumulation, ice, and freeze-thaw cycles can affect equipment installed too low.
In the photo, you can also see the vertical routing of the lines in a white conduit. This choice not only improves the visual finish but also protects the refrigerant lines and cables from bad weather, impacts, and direct exposure. A good installation is not just about appearance: it often signifies better protected and more durable work.
Specific challenges encountered on this project
Every house presents its own constraints. In this Duvernay project, our team had to contend with a wall space already occupied by existing elements, including surface conduits at the bottom of the wall, a nearby window, and landscaping with shrubs near the work area.
The goal was to install the MIDEA EVOX G3 central heat pump in a way that met several conditions:
- maintain sufficient clearance around the outdoor unit;
- avoid any fan obstruction;
- preserve access for future maintenance;
- protect the refrigerant lines;
- limit the visual impact on the facade;
- ensure solid fastening despite the wall configuration;
- keep the installation clean and professional.
These details make a significant difference. A quick but poorly planned installation may seem correct on the day it's done, but become problematic after a few seasons. At AirGreen, we prefer to take the time to properly position the equipment from the outset, especially for a central heat pump that is expected to serve for many years.
The importance of a well-coordinated central installation
Unlike a simple wall-mounted air conditioner, a central heat pump involves coordination between the outdoor unit, indoor unit, ducts, electrical supply, thermostat, and sometimes the adaptation of an existing system. Even if the image mainly shows the exterior, a large part of the work takes place indoors: connection to the air distribution system, airflow verification, compatibility with the existing network, and complete commissioning.
For this installation in Laval, our team paid particular attention to the consistency of the complete system. A high-performing central heat pump will not deliver its full potential if the air network is poorly balanced, if connections are not properly sealed, or if the thermostat is not configured correctly.
That's why our process always includes a complete functional check after installation. We don't just install the unit: we validate performance, cycles, outlet temperatures, system behavior, and the necessary parameters so that the client benefits from stable comfort.
What Laval homeowners should remember before installing a central heat pump
Choosing the right outdoor location is essential
The location of the outdoor unit directly influences durability, perceived noise, maintenance access, and overall efficiency. In several neighborhoods in Laval, particularly Duvernay, Vimont, Sainte-Rose, Chomedey, or Pont-Viau, houses sometimes have limited side clearances or walls already occupied by other installations.
Before choosing the location, the following must be considered:
- airflow around the unit;
- exposure to snow;
- proximity to windows;
- distance from neighbors;
- access for technicians;
- routing of conduits;
- solidity of the mounting surface.
In this project, wall-mounting was the most logical solution. It allowed for better protection against snow, a clean finish, and more orderly integration into the building.
A central heat pump requires serious sizing
The 2-ton size is not chosen randomly. For a successful HVAC installation, sizing must be based on the reality of the building. It's not enough to rely solely on square footage. Two houses of the same size can have very different needs depending on their insulation, sun exposure, number of floors, window quality, and the condition of the ductwork.
Proper sizing improves:
- heating comfort;
- cooling comfort;
- dehumidification;
- compressor lifespan;
- energy consumption;
- indoor temperature stability.
At AirGreen, we regularly see old installations where the equipment was chosen too hastily. The result: noise, short cycles, faster wearing parts, uneven comfort, or disappointing energy bills. This is exactly what we aim to avoid.
Subsidies: an important factor, but not the only one
Homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore often ask us the same question: is this heat pump eligible for subsidies? The answer always depends on the exact model, the indoor-outdoor pairing, the applicable AHRI numbers, and the criteria in effect at the time of application.
The MIDEA EVOX G3 is often considered in projects where energy efficiency and financial aid programs play an important role. However, a common mistake must be avoided: choosing a machine solely because it provides access to a subsidy, without verifying if it is actually suitable for the house.
A subsidy can reduce the net cost of the project, but the right choice remains one that combines performance, reliability, parts availability, installation quality, and daily comfort.
Mistakes to avoid during a central installation
Many problems we fix in the field could have been avoided during the initial installation. Here are the most frequent mistakes:
Installing the outdoor unit too low
In our climate, an outdoor unit too close to the ground can be exposed to snow, ice, standing water, and debris. A wall-mounted installation, as in this project in Duvernay, can be an excellent solution when the structure allows it.
Neglecting conduit protection
Refrigerant lines must be well protected. A clean, well-aligned, and securely fastened conduit improves appearance and protects the system's essential components.
Choosing capacity without analysis
A 2-ton central heat pump can be ideal for one house and inadequate for another. The choice must be made methodically.
Forgetting future maintenance access
An HVAC system must remain accessible. Technicians must be able to clean, inspect, measure, diagnose, and replace parts if necessary. An installation that is too tight can unnecessarily complicate maintenance.
Entrusting the project to a team unfamiliar with the product
The quality of the machine matters, but the quality of the installation matters just as much. A well-installed MIDEA EVOX G3 will offer much higher performance than a machine installed without rigor.
An AirGreen approach focused on detail
This project in Duvernay perfectly reflects our way of working: a clean installation, a well-positioned machine, protected conduits, attention to aesthetics, and constant consideration for the building's real constraints.
We install HVAC systems in a wide variety of contexts: single-family homes in Laval, duplexes in Montreal, properties undergoing renovation on the North Shore, family residences in Longueuil, and suburban homes on the South Shore. Each project has its specificities, but our priority remains the same: to deliver a reliable, durable, and easy-to-maintain installation.
In the case of this 2-ton MIDEA EVOX G3 central heat pump, the final result offers a discrete and efficient solution, perfectly adapted to a residential home in Duvernay. The outdoor unit is stable, well-cleared, protected, and cleanly integrated into the brick wall. The client now benefits from a central system capable of contributing to the home's comfort in both summer and winter.
Why AirGreen recommends a complete analysis before replacing a central system
When a homeowner contacts us to replace a central heat pump or an old central air conditioner, we do not automatically recommend the same size as the old equipment. Instead, we verify what is actually needed today.
Needs may have changed: improved insulation, replaced windows, expansion, basement renovation, change of occupancy, new comfort expectations. A home that once required a certain capacity might now function much better with different, more efficient, and better-controlled equipment.
This approach avoids automatic decisions. It allows for proposing a solution that matches the building, budget, and desired level of comfort.
An installation that improves comfort without altering the home's appearance
One of the major advantages of a central heat pump is its discretion indoors. Unlike multiple wall-mounted units visible in different rooms, the central system uses the ventilation network to distribute air. For homeowners who wish to maintain a cleaner interior aesthetic, this is often a highly appreciated solution.
Outside, the MIDEA EVOX G3 installed in Duvernay also presents a sleek appearance. Its dark color blends well with the foundation and contrasts neatly with the brick wall. The vertical routing of the pipes provides an organized finish, which is important when the unit is visible from the yard or side entrance.
A Project Representative of Current HVAC Needs in Laval
Homeowners today are looking for more efficient, quieter, and better-adapted systems for Quebec's climate. Older, cooling-only solutions are becoming less attractive, especially when modern heat pumps can contribute to heating while improving the overall performance of the home.
This installation in Duvernay clearly shows the benefit of a modern central solution: a single system, uniform distribution, compact outdoor equipment, and better management of year-round comfort.
For AirGreen, each project is also an opportunity to advise the client on best practices: regular maintenance, clearance around the unit, filter replacement, monitoring for unusual noises, and periodic performance checks. A good installation is the beginning; good maintenance ensures continuity.
Conclusion: A MIDEA EVOX G3 2-Ton System Methodically Installed in Duvernay
This installation of a MIDEA EVOX G3 2-ton central heat pump in Duvernay, Laval perfectly illustrates the importance of well-planned HVAC work. The choice of location, wall mounting, pipe protection, clearance compliance, and complete commissioning are all elements that influence the system's actual performance.
At AirGreen, we know that a client isn't just looking for a machine. They're looking for a reliable, well-installed solution that can improve their home's comfort for many years. This is exactly the objective achieved in this project: a clean, efficient, durable installation adapted to the residential realities of Laval.
How it goes, from the first call to the end
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 the unit delivers when it is cold
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.
And 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.
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.
Which type of equipment for your project?
Pick what looks like your need.
Four mistakes we do not make
Flip each card to see what we do instead.
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.
Useful pages for what comes next
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Tell us about your house. We come and see it for free.
The on-site estimate is free and the quote follows within 24 hours.
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).