Installation of a MIDEA EVOX G3 1.5 ton electric furnace with central Air Handler system in Verdun
AirGreen installs a 1.5-ton MIDEA EVOX G3 electric furnace in Verdun: central Air Handler system, meticulous connections, reliable comfort, and HVAC installation adapted to confined spaces.

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.
A compact, clean central installation designed for stable comfort in Verdun
In Verdun, mechanical space is rarely generous. Between cramped walls, existing ducts, sometimes tight access, and the constraints specific to urban homes in Montreal, each HVAC installation requires a precise reading of the building before even touching the equipment. For this project, our AirGreen team installed a MIDEA EVOX G3 1.5 ton electric furnace, configured as a central system with Air Handler, in a narrow technical space where every connection had to be executed with care.
The project photo clearly illustrates the desired result: a dense but orderly installation, with clean integration between the electric furnace, the central indoor unit, the ducts, drainage, refrigerant connections, and electrical power. This type of project is particularly common in areas such as Verdun, LaSalle, Le Sud-Ouest, Rosemont, Laval, Longueuil, the North Shore, and the South Shore, where homeowners want to modernize their heating and air conditioning without rebuilding the entire duct network.
Why a MIDEA EVOX G3 1.5 ton electric furnace was suitable for this project
The choice of a MIDEA EVOX G3 1.5 ton responded to a very specific reality: to offer a high-performance, quiet, and well-integrated central system while respecting the physical limitations of the mechanical room. In this type of configuration, the electric furnace and Air Handler become the heart of indoor comfort. Air is distributed through existing ducts, allowing multiple rooms to be heated and cooled from a single central system.
For a property in Verdun, this approach offers several concrete advantages:
- more uniform air distribution than with several independent appliances;
- a more discreet aesthetic, without visible wall units in the main rooms;
- better compatibility with homes and condos already equipped with ducts;
- a suitable solution for homeowners who want to modernize their central heating without multiplying visible equipment;
- a solid technical foundation to combine comfort, energy efficiency, and simplified maintenance.
In this project, the 1.5 ton capacity was consistent with the building's needs, taking into account the volume to be treated, the condition of the ducts, the room configuration, and the client's comfort expectations. A common mistake is to choose too large a machine, thinking it will yield a better result. In reality, an oversized system can cause short cycling, poor dehumidification, more noise, and premature wear. Our work therefore always begins with an analysis of the real context, not just a quick reading of the area.
Tight mechanical space: the real challenge of this installation
What makes this installation interesting is the immediate proximity between the components. The MIDEA equipment was installed in a space where clearances were limited, with existing ducts and a structure that left little room for error. We had to ensure a solid connection to the ventilation network while maintaining necessary access to service panels.
In the photo, several important elements are visible:
- the connection to the main duct above the unit;
- the integration of the central system into a restricted wall space;
- the presence of insulated refrigerant lines;
- the PVC condensate drain installed with a functional slope;
- carefully routed electrical and control connections;
- the AirGreen label affixed to the equipment, a sign of a project completed and followed up by our team.
In such a compact space, a poorly planned installation can quickly become difficult to maintain. At AirGreen, we pay particular attention to future access to filters, electrical panels, service connections, and internal components. A clean installation is not just about looking good: it facilitates diagnostics, reduces the risk of errors during HVAC maintenance, and extends the system's lifespan.
Technical execution where every detail counts
Adjustment to existing ducts
One of the most sensitive aspects of a central project is integration with existing ducts. In Verdun, several buildings have been renovated in stages over the years. Ducts may have been modified, partially insulated, widened, reduced, or adapted to older equipment. Before final installation, our team evaluates airflow, return configuration, and the compatibility of the appliance with the available network.
In this case, the goal was to maximize the performance of the MIDEA electric furnace without imposing unnecessary transformations. The upper connection was adjusted to ensure a clean transition to air distribution. A poor connection can lead to pressure losses, vibrations, air leaks, or uneven comfort from room to room. That's why we favor well-sealed connections, adequate insulation, and a robust finish.
Condensate drainage: a simple but essential detail
The drain visible on the installation plays a crucial role. When a central system operates in air conditioning mode, air humidity condenses on the indoor coil. This water must be properly evacuated. Insufficient slope, a misaligned connection, or a poorly supported drain can cause overflows, odors, safety shutdowns, or damage to the building.
On this project, the PVC drain was installed to allow reliable drainage. In our installations in Montreal, Laval, Longueuil, on the North Shore, and the South Shore, we always emphasize this point, as many avoidable service calls result from details neglected during initial installation.
Refrigerant lines and insulation
The insulated refrigerant lines, visible on the right side of the unit, connect the indoor unit to the outdoor system in a central heat pump configuration. Their installation must be neat, protected, and well-supported. Insulation is important to limit efficiency losses, prevent unwanted condensation, and protect components.
In a confined space, it is also necessary to prevent the lines from stressing the connections. A quick but misaligned installation can lead to vibrations, noise, or long-term mechanical stress. Our approach is to organize the lines cleanly, secure the routes, and maintain reasonable service access.
Electrical power and controls
An electric furnace requires serious attention to the electrical aspect. Connections must comply with manufacturer requirements, applicable standards, and the actual needs of the equipment. In this project, control wires were carefully routed to avoid clutter and facilitate future interventions.
The MIDEA EVOX G3 unit is designed to integrate with modern comfort logic. Depending on the complete system configuration, it can operate with adapted control for better management of heating, ventilation, and air conditioning. For the homeowner, this translates into more consistent comfort, better reaction to temperature variations, and more intuitive daily use.
What the client really wanted: comfort without complication
The client was looking for a reliable, well-installed central solution adapted to their space. In several similar projects in Verdun, homeowners don't just want to replace a machine. They want to avoid unpleasant surprises: excessive noise, poorly distributed air, difficult maintenance, disappointing energy bills, or an installation that seems improvised.
Our role is therefore to deliver a system that inspires confidence from the first use. After installation, we validate operation, airflow, drainage, connections, and system response. This commissioning step is essential, because even an excellent machine can yield poor results if not properly checked.
Mistakes to avoid when installing a central system like this
For homeowners considering a similar HVAC installation in Verdun or elsewhere in Greater Montreal, here are the most common mistakes we see in the field:
Choosing capacity based solely on area
The area provides a first indication, but it is not enough. Insulation, building orientation, windows, ducts, ceilings, number of floors, and usage habits all influence the choice of capacity. A MIDEA EVOX G3 1.5 ton may be perfect in one context and inadequate in another.
Neglecting the condition of the ducts
A central system depends on its ducts. If the network is undersized, leaky, or too restrictive, even good equipment will not be able to perform optimally. During our installations, we always observe connections, return air, and transitions.
Installing without thinking about maintenance
A unit jammed against a wall, with difficult-to-remove panels, can be more expensive to maintain. We install equipment with future technicians in mind, who will need to service it in a few years.
Underestimating drainage
A poorly designed drain can create more problems than a defective mechanical component. This is why condensate drainage deserves as much attention as the main connections.
Comparing price only
The price of a central installation does not just reflect the machine. It includes the quality of installation, duct adjustment, materials, commissioning, finish, warranties, and the team's experience. In the HVAC field, the difference between an average and a professional installation is often evident after a few seasons.
MIDEA EVOX G3: a relevant solution for urban homes
The MIDEA EVOX G3 range is often chosen for projects seeking a good balance between performance, comfort, and accessibility. In a market where homeowners compare several brands, MIDEA holds an interesting position for central systems, particularly when the installation is well-suited to the building.
For a property in Verdun, this electric furnace with Air Handler allows for central air distribution while modernizing the mechanical equipment. It's a particularly attractive option for homes with existing ducts, partial renovations, replacements of old systems, and projects where adding multiple wall units is undesirable.
Subsidies and eligibility: a point to check based on the complete configuration
Subsidy programs can vary depending on the exact model, combination with the outdoor unit, certified performance, installation address, and criteria in effect at the time of the project. For a central system like this, eligibility must always be confirmed with the complete model numbers and the requirements of the applicable program.
At AirGreen, we help clients understand the available options, particularly for installations in Montreal, Laval, Longueuil, on the North Shore, and the South Shore. We avoid promising a subsidy without validation, as criteria can change, and some configurations are eligible only when they precisely meet technical requirements.
An installation that reflects our AirGreen approach
This project in Verdun perfectly represents our way of working: analyzing the space, choosing an adapted solution, cleanly executing connections, respecting the equipment, and considering the client's actual comfort. In the field of central air conditioning, central heat pumps, electric furnaces, and HVAC maintenance, quality is often found in invisible details.
A well-sealed duct, a correct drain slope, preserved service access, well-insulated lines, and thorough commissioning make all the difference. These are the actions that allow a central system to operate efficiently, quietly, and durably.
Practical advice for homeowners in Verdun and Greater Montreal
Before replacing an electric furnace or central system, we recommend checking the following elements:
- the general condition of the ducts;
- the actual capacity required for the building;
- the space available for the new unit;
- access to service panels;
- the quality of existing drainage;
- compatibility with a central heat pump, if applicable;
- subsidy possibilities;
- the installer's reputation and experience with central systems.
In areas such as Verdun, Villeray, Ahuntsic, Laval, Brossard, Longueuil, Terrebonne, Blainville, and the South Shore, these checks are particularly important, as buildings can present very different constraints from one address to another.
Well-installed central comfort is felt every day
Once the installation is complete, the client benefits from a modern central system, neatly integrated into their mechanical space and ready to provide stable comfort daily. The objective was not just to install a MIDEA EVOX G3 1.5 ton electric furnace, but to deliver a complete, reliable, and building-adapted solution.
At AirGreen, we see each project as a combination of technical expertise, field experience, and respect for the home. This installation in Verdun is an excellent example: compact, meticulous, functional, and designed to last.
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.
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).
