Project

Installation of a GREE VITA R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in a Montreal-Est Apartment

AirGreen installs a GREE VITA R32 in Montreal East: mini split wall-mounted heat pump above a window, clean installation, targeted comfort, and local HVAC expertise.

By AirGreen Climatisation & Chauffage Admin13 min read
Installation of a GREE VITA R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in a Montreal-Est Apartment
Installation of a GREE VITA R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in a Montreal-Est Apartment
–chapters in this story
13 minreading time
–type of installation
2026year published
The tour

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.

Generic diagram: wall-mounted heat pump, indoor and outdoor units

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. Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

The job

A wall heat pump precisely installed above a large window in Montréal-Est

This installation carried out by AirGreen in Montréal-Est highlights a detail that many homeowners underestimate before choosing a wall heat pump: the indoor location of the unit is as important as the model itself. In the photo, you can clearly see a GREE VITA R32 wall unit installed very neatly above a large window, in a room where the available space between the ceiling, window frame, and side wall was limited. This type of configuration requires careful analysis, as poor positioning can affect comfort, aesthetics, air circulation, and future access for HVAC maintenance.

In this project, our team had to integrate a mini split wall air conditioner without altering the interior space. The client wanted an effective solution to improve the room's comfort, especially during hot periods, while maintaining a discreet, aligned, stable, and visually clean installation. The indoor unit was therefore placed above the window, with particular attention to height, upper clearance, the positioning of the motorized shutter, and the air projection into the room.

In Montréal-Est, many homes have similar constraints: load-bearing walls, large windows, sometimes low ceilings, narrow rooms, interior finishes to preserve, limited outdoor access, and very specific comfort needs. A successful HVAC installation in this context relies not only on the power of the device. It depends on the installer's ability to read the building, anticipate obstacles, and propose a solution that will work well daily.

The choice of the GREE VITA R32 for targeted and effective comfort

The GREE VITA R32 is a wall solution appreciated for residential projects where a good balance between efficiency, simplicity, comfort, and compact size is sought. In a home in Montréal-Est, this type of heat pump is particularly relevant when a main room, living room, open area, or heat-exposed zone requires precise temperature control.

For this project, the capacity was selected according to the actual needs of the space: room volume, window orientation, sun exposure, insulation, natural air circulation, ceiling height, and client usage habits. A poorly sized wall heat pump can cause short cycles, poorly controlled humidity, or unstable temperature. At AirGreen, we avoid recommendations based solely on surface area. Each project is evaluated according to the concrete configuration of the building.

The R32 technology also represents an important advantage in modern equipment. This refrigerant is used in several recent heating and air conditioning systems, and it fits into a more current approach to residential installations. For the client, this means a device designed according to recent market standards, with performance adapted to the needs of seasonal or extended use depending on the configuration.

An indoor installation above a window: the technical points to respect

Installing a wall unit above a window requires much more precision than mounting on a clear wall. In this residence in Montréal-Est, the top of the frame, the blind, the ceiling, and the adjacent wall limited the maneuvering space. Our team therefore worked with a millimeter-precise approach so that the device was perfectly positioned, without obstructing the visual opening of the window or compromising the air distribution.

The most important elements in this type of installation are:

  • the clearance between the top of the unit and the ceiling;
  • access to the filter for regular cleaning;
  • the orientation of the airflow towards the room rather than directly on the occupants;
  • the slope and passage of the condensation drain;
  • the aesthetic alignment with the window frame;
  • the strength of the wall anchoring;
  • the discreet passage of the refrigeration line to the outside.

The photo shows a sober and well-integrated installation. The unit doesn’t seem randomly added: it follows the architectural line of the room and remains high enough not to clutter the space. This precision contributes to the client’s experience, as a HVAC installation visible every day must be technically reliable but also pleasant to look at.

Preserving the blind, the framing, and the interior finish

One of the challenges of this installation was the proximity of the horizontal blind and the upper window frame. When a wall unit is installed too low, it can interfere with the blind’s operation, reduce visual space, or give a cluttered impression. When installed too high without respecting the required clearances, maintenance becomes more difficult and performance can be affected.

Our team therefore chose a positioning that preserves the use of the window and the blind while keeping the unit in an optimal zone for air distribution. In a room with a large glazed surface, this strategy is especially useful: the wall-mounted heat pump can counteract heat buildup near the window while projecting air toward the main volume of the room.

This kind of detail often makes the difference between an ordinary installation and a sustainably satisfying one. The client didn’t just want a functional unit. They wanted a clean, well-placed solution that respects their interior.

The role of air diffusion in daily comfort

Comfort is not measured only by the temperature displayed on the remote control. A room can reach 22 °C and still feel uncomfortable if the air is poorly distributed, if the airflow is too direct, or if some corners remain warm. In this project in Montréal-Est, the location above the window allowed effective diffusion toward the front of the room while limiting the visual impact of the unit.

The GREE VITA R32 offers modulation that allows maintaining a more stable temperature than a simple window unit or a portable air conditioner. For an owner, this means fewer sudden fluctuations, quieter operation, and better comfort management during heat waves.

This choice is especially relevant in urban areas of Montréal, where many homes accumulate heat at the end of the day. Exposed walls, windows, heat islands, and building density can make some rooms difficult to cool. A well-installed wall-mounted heat pump then provides a very tangible comfort gain.

An HVAC installation designed for performance, maintenance, and durability

A clean installation that facilitates HVAC maintenance

A wall unit must remain accessible. The filters must be removable, cleanable, and replaceable without difficulty. The front panel must open properly. The louvers must operate without obstruction. In this installation, the space around the unit was planned to allow these simple but essential actions.

Good HVAC maintenance starts with an installation that makes it possible. When a unit is stuck too close to the ceiling or an obstacle, the customer may neglect cleaning the filters, which can reduce performance, increase noise, and promote dust buildup. At AirGreen, we always think about the actual use of the device after we leave.

We generally recommend that customers clean the indoor filters regularly during periods of intensive use, monitor any changes in noise or smell, and schedule a professional check-up if needed. For homes in Montréal-Est, Montréal, Laval, Longueuil, the North Shore, and the South Shore, this simple approach helps preserve the equipment’s performance and lifespan.

The passage of the lines: discretion and efficiency

Behind a well-aligned wall unit, there is always invisible technical work. The refrigerant lines, communication cable, power supply, and drain must be carefully planned. In an installation above a window, the passage to the outside must avoid sensitive building elements: lintel, structure, framing, interior finish, insulation, and exterior cladding.

In this project, our team ensured to limit the visual impact while maintaining a reliable configuration. The condensation drain had to be designed to evacuate water properly, without backflow or stagnation. The pipes had to be protected and routed in a way that supports the system's performance.

These are the details that protect the client against future problems: water stains, abnormal noise, loss of efficiency, vibrations, or difficult interventions. A well-executed HVAC installation must remain clean and stable after several seasons, not just on the day of installation.

Why avoid improvised installations

A wall heat pump like the GREE VITA R32 is a complete technical system. It should not be installed as a simple wall accessory. An improvised installation can create several problems:

  • device too close to the ceiling;
  • air blown directly onto a resting area;
  • poorly sloped drain;
  • poorly protected pipes;
  • insufficient anchoring;
  • indoor unit installed crookedly;
  • difficult access to filters;
  • wrong capacity choice;
  • noise or vibration transmitted to the structure.

In this project in Montréal-Est, the installation was designed to avoid these mistakes. The indoor unit is well integrated into the wall, the window framing remains clear, and the chosen position allows good air projection. This rigor is essential, especially in apartments where every centimeter counts.

Montréal-Est: a particular residential context

Montréal-Est has a distinct built profile. It includes residences, apartments, older buildings, and areas exposed to sometimes demanding urban conditions. The needs for air conditioning are often related to heat accumulated in certain rooms, windows facing full sun, or the limits of existing heating systems.

A mini split wall heat pump often represents a very effective solution for this type of building. It allows targeting a specific area without installing ducts, without undertaking major renovations, and without sacrificing too much interior space. For owners who want to quickly improve their comfort while keeping a clean installation, the GREE VITA R32 is a serious option.

AirGreen's experience in Greater Montreal allows us to adapt our installations to very varied realities: condos in Laval, houses in Longueuil, duplexes in Montreal, properties on the North Shore, family residences on the South Shore, and housing with particular interior constraints. Each building imposes its own rules, and our job is to find the most coherent solution.

Subsidies and eligibility: a point to check before work begins

When a client chooses a heat pump, the question of subsidies often comes up. Some models may be eligible for financial aid programs depending on their performance, certification, low-temperature capacity, and the rules in effect at the time of installation.

For the GREE VITA R32, eligibility must always be verified according to the exact model, installed capacity, and applicable criteria at the time of the project. At AirGreen, we assist our clients in this step so they clearly understand what can be requested, which documents to keep, and how to avoid common mistakes. The invoice, model numbers, technical information, and proof of installation must be consistent with the requirements of the relevant program.

It is important not to choose a wall-mounted heat pump solely based on a potential subsidy. The right device must first meet the building's needs. The subsidy, when applicable, enhances the return on investment but does not replace proper technical selection.

The tangible benefits observed after installation

After installation, the client obtained a solution that met several objectives:

  • improved comfort in the targeted room;
  • more stable cooling during hot periods;
  • discreet device above the window;
  • floor space preservation;
  • precise temperature control;
  • quieter operation than a mobile solution;
  • clean, aligned, and easy-to-maintain installation.

In this type of project, the result is mainly noticeable in daily life. The room becomes more pleasant, the air circulates better, and the client no longer has to rely on a noisy or bulky temporary device. The wall-mounted heat pump becomes an integrated part of the home, not an annoying addition.

AirGreen Tips for a Similar Installation

For owners in East Montreal or elsewhere in Greater Montreal considering a similar installation, we recommend paying attention to several elements before making a decision:

  1. Analyze the actual room, not just its area.
  2. Check the indoor location before choosing the model.
  3. Confirm possible routing of pipes to the outside.
  4. Preserve access to filters to facilitate maintenance.
  5. Avoid oversized units that can harm comfort.
  6. Consider aesthetics from the start.
  7. Request a complete installation by qualified professionals.
  8. Validate eligibility for subsidies before starting work.

These tips may seem simple, but they prevent most of the problems we see when correcting poorly planned installations.

A representative achievement of AirGreen’s expertise

This installation of a GREE VITA R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in East Montreal demonstrates the importance of a precise, clean, and building-adapted approach. The indoor unit was installed in a tight space, above a window, without compromising the room’s appearance or the unit’s proper functioning.

At AirGreen, we focus on the real quality of the installation: choice of location, sturdiness, clearance, drainage, routing of pipes, customer comfort, performance, and future maintenance. This method ensures a reliable long-term result.

For customers located in Montreal, Laval, Longueuil, on the North Shore or the South Shore, this project clearly illustrates what to look for in a wall-mounted heat pump installation: a well-chosen unit, careful installation, and a team capable of adapting their work to the site’s constraints.

The steps

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.

Step 1 of 9The on-site estimate

We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.

  1. The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

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.

Size checkYour baseboards, 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.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    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.

    • Clean the indoor unit's filters.
    • Clear leaves and debris left on the outdoor unit by winter.
    • Test cooling before the first hot days.
    At your place

    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.

    0 / 6 checked
    True or false

    Four statements: true or false?

    It all comes down to details you have just seen.

    1. In heating mode, the outdoor unit can produce water.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    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.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    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.

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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).

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