Project

Installation of a MIDEA EVOX G3 2-ton central heat pump in La Prairie, on Montreal's South Shore

AirGreen installs a 2-ton MIDEA EVOX G3 central heat pump in La Prairie: comfort, efficiency, careful installation, and HVAC expertise on the South Shore.

By AirGreen Climatisation & Chauffage Admin13 min read
Installation of a MIDEA EVOX G3 2-ton central heat pump in La Prairie, on Montreal's South Shore
Installation of a MIDEA EVOX G3 2-ton central heat pump in La Prairie, on Montreal's South Shore
Generic diagram: central heat pump, indoor module and ducts

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.

  1. It captures or rejects heat outside. It sits on a level base, above the snow, with free space all around.

  2. The insulated refrigerant lines enter the house through a sealed opening and run to the indoor coil.

  3. A shut-off switch near the outdoor unit isolates it safely for service.

  4. Sitting on the indoor module, it moves heat between the house air and the refrigerant.

  5. Electric furnace or air handler: its fan pushes air through the ducts. The electric backup takes over in extreme cold.

  6. Supply ducts bring air to the rooms; returns bring it back to the unit. Their condition matters as much as the unit's.

  7. It protects the coil and the fan. A dirty filter cuts airflow, so it gets checked regularly.

  8. It runs the heat pump and the backup heat. It must be compatible with the installed system.

A compact, clean installation designed for the reality of homes in La Prairie

In La Prairie, on the South Shore, our AirGreen team recently completed the installation of a MIDEA EVOX G3 2-ton central heat pump, a particularly attractive choice for homeowners who want to improve their comfort without turning their backyard into a complex construction site. This installation perfectly illustrates a common reality in residential HVAC: available outdoor space is sometimes limited, access can be tight, and every detail matters to ensure a durable, quiet, and easy-to-maintain installation.

In this project, the MIDEA outdoor unit was installed near the house wall, on a stable metal support, with particular attention paid to clearance around the machine, the routing of refrigerant lines, wiring protection, and future access for HVAC maintenance. The presence of nearby vegetation, visible on site, also required a well-thought-out installation to maintain good airflow around the unit.

The MIDEA EVOX G3 is a central heat pump renowned for its excellent heating and cooling performance, especially in Quebec's winter conditions. For an appropriately sized residence, a capacity of 2 tons, or approximately 24,000 BTU, effectively meets comfort needs while maintaining controlled energy consumption.

Why the MIDEA EVOX G3 2 tons is a relevant choice for a South Shore home

A central heat pump designed for Quebec's climate

The MIDEA EVOX G3 central heat pump is valued for its ability to provide efficient heating during cold periods, while ensuring stable air conditioning during summer heatwaves. In La Prairie, as elsewhere on the South Shore, temperature fluctuations place a heavy burden on HVAC systems. A good central heat pump must therefore be able to meet two priorities: efficiently heat in winter and quickly cool in summer.

This model is often chosen for its advantageous technical characteristics:

  • Installed capacity: 2 tons / approx. 24,000 BTU
  • Inverter technology for more modulated operation
  • Heating adapted to Quebec winters
  • Next-generation refrigerant depending on model configuration
  • Quieter operation than an old conventional central system
  • Compatibility with several existing house configurations
  • Possible eligibility for certain subsidies depending on the exact model, AHRI, and current program conditions

For homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this type of system often represents a serious solution when looking to replace an old central air conditioner, modernize an electric heating system, or reduce reliance on less efficient equipment.

A project where outdoor space had to be used intelligently

The image of this installation shows an important element: the outdoor unit is positioned near the wall, with lines cleanly connected to the house, while taking into account surrounding obstacles, particularly the electrical box and nearby shrubs.

This type of configuration requires real field experience. An HVAC installation isn't just about placing a machine outside. It requires planning for:

  • the necessary clearance for the fan to breathe correctly;
  • the stability of the support;
  • the protection of the lines;
  • access to service panels;
  • distance from electrical elements;
  • water and snow drainage around the unit;
  • ease of access for a technician during future maintenance or diagnosis.

In this case, our team worked with a very practical approach: install the machine compactly, without compromising performance. The metal support allows the unit to be elevated, which is particularly important in Quebec, where snow accumulation, ice, and freeze-thaw cycles can affect the operation of a poorly positioned machine.

The essential role of the outdoor support

One detail that many homeowners underestimate is the quality of the support. A central heat pump of this type must remain well-leveled, stable, and clear. A unit installed too close to the ground can quickly become vulnerable to snow, fallen leaves, splashes, and debris.

In this installation in La Prairie, the support was chosen to provide a solid and durable base. This helps reduce vibrations, protects the unit from ground conditions, and facilitates maintenance. It is also good practice when a heat pump is installed near an exterior wall, as it limits risks associated with ground movement or humidity.

Special attention to pipes and connections

The refrigerant lines visible on the side of the machine were routed in a structured manner towards the house. This point is essential to ensure the reliability of the system. Poorly protected or positioned lines can cause long-term problems: efficiency losses, friction risks, difficulty of access, or premature wear.

At AirGreen, we pay particular attention to this type of finish, as a clean installation often reflects a system that will be simpler to maintain and more reliable over time. For a central heat pump, every connection, every pipe passage, and every electrical connection contributes to the final performance.

Vegetation around the unit: a detail not to be overlooked

The outdoor unit is located near shrubs. This is not necessarily a problem, but it requires vigilance. A heat pump must be able to draw in and expel air without obstruction. If branches grow too close to the grille or the service side, they can reduce performance, increase noise, or complicate maintenance.

We generally recommend that homeowners maintain reasonable clearance around the unit, especially in front of the fan and service panels. In La Prairie, as in several residential neighborhoods on the South Shore, yards are often landscaped with hedges, shrubs, fences, and narrow passages. Therefore, the machine must be considered not only on the day of installation but also two or three seasons later, when the vegetation has grown.

What this installation brings to indoor comfort

A well-sized 2-ton central heat pump can transform a home's comfort. Unlike a central air conditioner that is only used in summer, a central heat pump provides heating and cooling from the existing or adapted ductwork system. This allows for more uniform air distribution in the rooms.

For occupants, the benefits are quickly felt:

  • more stable temperature in the house;
  • better humidity management in summer;
  • gentler heating during cold periods;
  • possible reduction in energy costs depending on the old system;
  • more homogeneous comfort from one floor to another when the ducts are well designed;
  • quieter operation than an old outdoor compressor.

The MIDEA EVOX G3 is particularly interesting for customers looking for a high-performance central solution, without necessarily opting for the most expensive options on the market. It offers a very good balance between technology, performance, accessibility, and reliability.

The importance of proper sizing: why 2 tons doesn't suit all homes

A common mistake in residential HVAC is to choose a heat pump based solely on the size of the house. In reality, sizing depends on several factors: insulation, solar orientation, number of floors, window quality, ductwork, airtightness level, old installed capacity, and occupant habits.

A machine that is too small risks running non-stop during extreme periods. A machine that is too large can cause short cycles, poorer dehumidification, and premature wear. In this project in La Prairie, the 2-ton capacity matched the targeted needs of the house and the system configuration.

At AirGreen, we do not consider only the price or availability of a model. We evaluate the entire project logic: the house, the outdoor space, the desired comfort, technical access, potential subsidies, and the actual constraints of the site.

Subsidies and eligibility: a point to check before installation

Many homeowners contact us to find out if a MIDEA central heat pump may be eligible for financial aid. The answer always depends on the exact model, the indoor/outdoor combination, the AHRI number, and the criteria of the program in effect at the time of installation.

This is why we validate the technical details before presenting an option as eligible. For customers in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this verification is essential. A difference in model, capacity, or combination can change eligibility.

A good HVAC contractor must be able to clearly explain this point to the client, without promising a subsidy simply because a brand is known or a model seems similar. In central installations, the complete system combination matters.

Mistakes to avoid during central heat pump installation

This project in La Prairie serves as a reminder of several common mistakes we see in the field:

Installing the unit too close to an obstacle

An outdoor unit needs air. When it's too close to a wall, hedge, fence, or balcony, it can lose efficiency. It's always important to respect recommended clearances and anticipate how the environment around the machine will change.

Neglecting the height from the ground

In Quebec, snow is not a minor detail. A heat pump installed too low risks being buried or partially blocked. A good outdoor support helps protect the equipment and maintain more stable performance.

Forgetting service access

An installation might look clean on the day of completion, but become problematic if technicians can't access panels, valves, or connections. A good installation already plans for future maintenance.

Choosing a machine without considering the ducts

A central heat pump also depends on the air distribution network. If the ducts are poorly adapted, too restrictive, or unbalanced, even an excellent machine will not perform at its full potential.

Comparing only the price

The price of a heat pump is important, but it shouldn't be the only criterion. The quality of installation, after-sales service, parts availability, warranty, and team experience matter tremendously.

Our AirGreen approach to this type of project

For an installation like this, our method is simple: we aim to deliver a clean, reliable, and home-appropriate result. Before finalizing the project, we evaluate the location, access, existing configuration, and client needs. Once the equipment is installed, we check connections, operation, airflow, and essential parameters.

In Greater Montreal, we have carried out many similar installations on suburban houses, townhouses, duplexes, condos with technical constraints, and residences where outdoor space is limited. This experience allows us to anticipate the details that often make all the difference.

In La Prairie, the result is a compact, professional installation that is well integrated into the home's outdoor environment. The MIDEA unit is solidly positioned, the conduits are carefully routed, and the space has been used efficiently.

Why choose AirGreen for a central heat pump in La Prairie

A successful HVAC installation relies on three elements: the right equipment, proper sizing, and good execution. The MIDEA EVOX G3 2-ton is an excellent option when properly chosen for the residence, but its actual performance directly depends on the quality of the work performed on site.

At AirGreen, we support clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore with an approach focused on durability. We don't just aim to install a machine quickly. We want the system to be reliable, efficient, and easy to maintain for years to come.

This installation in La Prairie clearly demonstrates what distinguishes professional work: a well-positioned unit, clean finishing, consideration for technical access, attention to the immediate environment, and a solution adapted to the real comfort of the occupants.

Practical tips for homeowners after installation

To keep a central heat pump in good condition, a few simple actions can make a big difference:

  • Keep shrubs and branches away from the outdoor unit.
  • Avoid stacking objects near the fan.
  • Gently clear snow around the unit without hitting the machine.
  • Replace or clean filters as recommended.
  • Schedule regular HVAC maintenance.
  • Monitor for any unusual noises or changes in performance.
  • Do not block indoor air return and supply vents.

These actions help maintain system performance and reduce the risk of emergency service.

An Installation Representative of Current Residential HVAC Needs

Homeowners today are looking for more efficient, quieter systems better suited to Quebec winters. The MIDEA EVOX G3 2-ton central heat pump responds very well to this demand when installed in the right context.

In La Prairie, this installation shows that it is possible to integrate a high-performance solution into a confined outdoor space, without compromising the quality of the work. For AirGreen, this is exactly the type of project where field experience, attention to detail, and understanding of client needs become paramount.

In figures
The steps

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.

Step 1 of 9The on-site estimate

We look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.

  1. The on-site estimateWe look at the ducts, the current indoor module, the electrical panel and the planned spot for the outdoor unit.
  2. The quoteThe equipment combination, capacity and price, in writing. We check whether the combination qualifies for assistance programs.
  3. Getting readyAccess protected, old unit disconnected and removed when it is being replaced.
  4. The indoor moduleElectric furnace or air handler, with its coil, connected to the supply and return ducts.
  5. The outdoor unitOn a level base, raised above the snow, with free space all around.
  6. The refrigerant linesInsulated, they enter through a sealed opening and run to the indoor coil.
  7. Electrical and thermostatDedicated circuits, accessible disconnect, a thermostat that works with the heat pump and the backup heat.
  8. Tests and start-upLeak test, vacuum, start-up, airflow check and a test of both modes.
  9. The walkthroughFilter, thermostat, backup heat in extreme cold: what to know before winter.
The unit

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.

The range, size by size
SizeHeating at −8 °CHeating at −15 °CColdest certified pointCOP at −15 °CSEERHSPFIndicative LogisVert aid
Midea EVOX G3 · 1.5 tons14,70018,600−30 °C: 11,8002.1219.010.1$1,764
Midea EVOX G3 · 2 tons20,80020,600−30 °C: 12,1002.1418.610.0$2,496
Midea EVOX G3 · 2.5 tons24,00033,200−30 °C: 17,9001.9717.210.8$2,880
Midea EVOX G3 · 3 tons33,00037,400−30 °C: 27,6001.918.010.0$3,960
Midea EVOX G3 · 4 tons39,50048,000−30 °C: 27,2002.017.59.5$4,740
Midea EVOX G3 · 5 tons45,00054,000−30 °C: 37,3001.917.59.5$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.

Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Before / afterThe cost of the same heat

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):

Before · baseboards11.142¢/kWh
After · heat pump–

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.

Size checkYour electric furnace, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    11 questions
    Can I keep my current ducts?
    Often, yes: the central heat pump connects to the existing ducts. We check their condition and size during the estimate.
    What happens in extreme cold?
    The indoor module (furnace or air handler) works with the central heat pump and takes over in extreme cold.
    Furnace, air handler, ducted: what is the difference?
    The furnace or air handler is the indoor module of the central system. A ducted system hides in the ceiling: all you see are small supply grilles.
    Are there grants?
    Depending on the equipment and your situation, assistance programs may apply. AirGreen checks the exact combination before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city. See permits and by-laws, and we check for your address.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Will my current thermostat work?
    Not always: the thermostat has to run the heat pump and the backup heat. We check compatibility during the estimate.
    Central or wall units: which one?
    If the house has ducts in good shape, a central system heats and cools every room at once. Without ducts, wall units or a multi-zone are often simpler. We compare on site.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

    Useful pages for what comes next

    Could this job help a neighbour?

    Share
    Similar projects

    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.

    All our projects

    Your project

    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.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
    • EstimateOn site, free
    • QuoteWithin 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).

    Leave a comment