Installation of a GREE LIVO R32 Wall-Mounted Heat Pump - Air Conditioner - Mini Split in Saint-Léonard, Montreal
AirGreen installs a GREE LIVO R32 wall-mounted heat pump in Saint-Léonard: discreet mini split near a window, lasting comfort, efficient air conditioning, and careful HVAC installation.
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.
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.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A strategic wall installation near a window to improve the comfort of a residential room in Saint-Léonard
In the Saint-Léonard borough of Montreal, AirGreen completed the installation of a GREE LIVO R32 wall-mounted heat pump, a mini split system designed to provide reliable indoor comfort, efficient cooling, and convenient supplemental heating in an existing residential unit. This project clearly illustrates the importance of location choice in an HVAC installation: the indoor unit was installed high, near the ceiling, on a wall adjacent to a large window with curtains, in a room where air distribution had to be carefully planned.
The photo shows a typical layout of several Montreal apartments: an available wall near a glass opening, a relatively low ceiling, an already furnished living area, and decorative elements to respect. In this context, the goal was not simply to mount a heat pump on the wall. It was necessary to choose a position capable of effectively treating the room, limiting direct drafts, preserving living space, and ensuring reasonable access for HVAC maintenance.
In Saint-Léonard, many homes have similar layouts: rectangular rooms, sun-exposed windows, shared walls, limited space around openings, and routing constraints for refrigerant lines. At AirGreen, we tailor each installation to the building’s reality, because a well-chosen wall air conditioner that is poorly positioned will never deliver the same results as a unit installed with method.
Why choose a GREE LIVO R32 for this residential project
The GREE LIVO R32 model is appreciated for residential installations where a compact, affordable, and versatile wall solution is sought. It is a wall-mounted heat pump - air conditioner - mini split system that manages seasonal comfort without taking up floor space, unlike portable air conditioners or window units.
In this project in Saint-Léonard, the client wanted a cleaner, more stable, and more comfortable solution than a temporary system. The room was influenced by the proximity of the window: in summer, solar gain and heat accumulated near the glass could make the space less pleasant. Installing a GREE wall air conditioner therefore helps to better distribute cool air while maintaining a more constant temperature.
The R32 technology is also an important factor. This refrigerant is used in several recent wall systems and allows manufacturers to optimize their devices in terms of performance and design. For an owner in Montreal, Laval, Longueuil, on the North Shore or on the South Shore, choosing a recent machine like the GREE LIVO R32 provides a solution adapted to current expectations for comfort, efficiency, and durability.
The exact BTU capacity of a GREE LIVO R32 unit must always be confirmed according to the model sheet and the sizing done on site. At AirGreen, we do not choose a capacity based solely on a quick estimate of the area. We also analyze the room’s exposure, ceiling height, insulation quality, number of windows, space usage, and the client’s habits.
A location near the window: a technical decision, not a coincidence
The indoor unit shown in the photo was installed on the wall near a window, above the area covered by the curtains. This type of location requires special attention because the window is often one of the main sources of heat gain in summer and heat loss in winter. Properly positioning a wall-mounted heat pump in this area can improve comfort, but only if the installation respects the necessary clearances.
Managing warm air near the glass
In many homes in Saint-Léonard, windows can let in a lot of heat on sunny days. Even with curtains, the temperature near the glass can rise quickly. By installing the wall unit near this area, we allow the system to better address the warm air concentrated in the room.
The goal is not to blow air directly onto the window but to create air circulation that stabilizes the overall temperature. Good diffusion helps avoid areas that are too cold near the device and areas that remain warm at the other end of the room.
The importance of clearance above the unit
In the photo, you can see that the unit is placed near the ceiling. A wall-mounted heat pump generally draws air from the top and redistributes it through the front opening. Therefore, a functional clearance must be preserved to avoid limiting the intake. When space is tight, installation precision becomes essential.
Our technicians took the time to position the device to respect air circulation, visual alignment, and access to the filters. This detail may seem simple, but it directly affects performance, operating noise, and ease of maintenance.
The proximity of the curtains
The presence of curtains near the unit also requires consideration. A curtain that blocks the air intake or outlet can reduce the system's efficiency and create discomfort. In this installation, the unit was placed to maintain an appropriate distance from the textile area while preserving good ventilation reach.
We always recommend that customers ensure that curtains never cover or obstruct the air outlet of the device. This is a simple but very important precaution to maintain consistent performance.
A discreet installation in an already furnished room
The wall on which the unit was installed was already part of a living space: window, curtains, wall decoration, and nearby furniture. In this type of situation, the challenge is to deliver a clean installation without giving the impression that a device has been forcibly added.
The GREE LIVO R32 features a simple wall-mounted design that fits well in a residential decor. Its light casing blends with the wall, and its high installation frees up floor space completely. For customers living in an apartment, condo, or townhouse in Montréal, this discretion is often an important criterion.
At AirGreen, we place great importance on finishing. A successful installation must be solid, compliant, and functional, but it must also respect the room's appearance. This involves:
- a well-leveled device;
- a properly fixed wall plate;
- a clear air outlet;
- a well-thought-out technical layout;
- a clean finish around openings;
- an installation that facilitates access to filters;
- special attention to existing surfaces.
The passage of lines and the drain: the invisible part that protects the building
The indoor unit is only the visible part of the installation. Behind a mini split system, there are refrigeration lines, a communication cable, a condensate drain, and an outdoor unit. The quality of these connections strongly influences the system's reliability.
In an installation near a window, the technical route must be carefully planned. The best path must be found to connect the indoor unit to the outside while maintaining an adequate slope for condensate water drainage.
Uncompromising condensate drainage
In cooling mode, the wall-mounted heat pump removes moisture from the air. This moisture turns into water that must be drained outside or to an appropriate drainage point. A poorly installed drain can cause leaks, odors, wall stains, or shutdowns.
In this project, drain planning was essential because the unit is installed high up and near a wall with an opening. Our technicians validated the route to ensure regular drainage, without back slope and without accumulation.
Refrigeration connections made by professionals
Connecting refrigeration lines requires precise expertise. The lines must be insulated, protected, and connected according to professional standards. Poor execution can reduce the device's performance, cause vibrations, harm the system's longevity, or lead to operational problems.
That is why AirGreen carries out this type of installation with qualified technicians, accustomed to the constraints of homes in Montreal, Laval, Longueuil, the North Shore, and the South Shore.
The comfort achieved after installation
Once the GREE LIVO R32 is commissioned, the client benefits from much more stable comfort in the room. The device allows air conditioning the space without a floor unit, without a temporary hose in the window, and without excessive noise related to portable air conditioners.
In summer: more consistent air conditioning
Wall air conditioning allows better temperature control during hot periods. Cool air is distributed from a high point, which helps treat the space more evenly. In a room with a window, this diffusion is particularly useful because it helps limit heat buildup near the glass.
In mid-season: a useful supplementary heating
The heat pump can also be used on cool spring or autumn days. In many Montreal homes, central heating or electric baseboards are not always ideal for managing rapid temperature changes. A wall unit allows adding comfort in the targeted room without necessarily heating the entire home in the same way.
Daily use: more space and fewer handling
Unlike a portable device, a wall-mounted heat pump stays in place all year round. The client does not have to install, move, empty, or store a seasonal device. This simplicity is one of the most appreciated advantages by owners and tenants who want a durable solution.
Sizing: why the number of BTU must be calculated seriously
Choosing the capacity in BTU is one of the most important decisions in an HVAC installation. A device that is too small may run too long without reaching the desired comfort. A device that is too large may cool too quickly without properly dehumidifying, which creates a less pleasant sensation.
For this installation in Saint-Léonard, the capacity of the GREE LIVO R32 was chosen based on the analysis of the room and the client's needs. The following elements were considered:
- area size to be treated;
- ceiling height;
- window orientation;
- amount of heat entering through the glazing;
- building insulation;
- air circulation between rooms;
- daily use of the space;
- presence of curtains and decorative elements;
- customer expectations for air conditioning and supplementary heating.
This approach avoids approximate recommendations. At AirGreen, we prefer to install a properly sized system rather than offer an oversized capacity just to reassure the customer. Real comfort depends as much on sizing as on installation quality.
Subsidies and eligibility: a point to verify according to the exact model
Subsidy programs for heat pumps can represent a significant advantage for customers in Quebec. However, eligibility depends on the exact model, installed capacity, efficiency criteria, and the rules in effect at the time of installation.
For a GREE LIVO R32, AirGreen checks the available technical information and assists the customer in understanding the necessary documents when the unit is eligible. Important information may include the indoor model number, outdoor model number, capacity, performance data, and the final invoice.
We always remind that a subsidy should not replace a good technical choice. The best project is one where the unit is suited to the building, well installed, properly used, and correctly maintained.
HVAC Maintenance: preserving the performance of the GREE LIVO R32
After installation, HVAC maintenance plays a crucial role. A wall unit can lose efficiency if the filters are clogged or if the outdoor unit is neglected. In a home with curtains, textiles, and household dust, filters can become dirty more quickly.
We recommend the customer to:
- clean the indoor unit filters regularly;
- keep the air outlet clear;
- avoid curtains touching the unit;
- check that no water appears under the unit;
- keep the outdoor unit free of leaves, snow, or debris;
- schedule regular professional maintenance.
Proper maintenance improves air quality, reduces the risk of abnormal noise, protects components, and helps the system maintain its efficiency.
Mistakes to avoid when installing near a window
This project also serves to remind of several common mistakes we observe in wall-mounted installations.
Installing the unit too close to the ceiling
Even if space seems available, sufficient clearance must be maintained for air intake. A unit placed too tightly may operate less efficiently.
Letting curtains block ventilation
A poorly positioned curtain can limit air diffusion. The actual use of the room must be considered, not just the appearance at the time of installation.
Neglecting drainage
The drain is a critical element. A poorly planned installation can cause leaks and damage walls.
Choosing an approximate capacity
Capacity must be determined according to the building, not just a general estimate.
Relying solely on price
A less expensive installation can become more costly if it causes performance, finishing, or reliability problems. In HVAC, the installer's skill matters as much as the brand of the device.
A well-integrated GREE LIVO R32 installation for lasting comfort in Saint-Léonard
This installation of a GREE LIVO R32 wall-mounted heat pump in Saint-Léonard shows how a mini split solution can concretely improve the comfort of a Montreal home while respecting the existing space. The unit was positioned near a window, high up, with particular attention paid to air diffusion, clearance, drainage, and interior finishing.
For AirGreen, each project is a combination of technical choices, local experience, and care in execution. Whether in Montreal, Laval, Longueuil, on the North Shore or on the South Shore, we adapt our installations to the real constraints of the buildings and the precise needs of our clients.
In this project in Saint-Léonard, the GREE LIVO R32 offers the client a practical, discreet, and efficient solution: more stable air conditioning in summer, useful supplementary heating in mid-season, better space management, and improved daily comfort. This is exactly the type of installation where a professional approach achieves a durable, clean, and truly adapted result for the home.
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 room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- 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.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
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 |
|---|---|---|---|---|---|---|---|
| Gree Livo R32 9 000 (115 V) | 10,000 | 7,600 | −25 °C: 5,700 | 1.86 | 20.5 | 8.8 | – |
| Gree Livo R32 9 000 | 9,600 | 7,600 | −25 °C: 5,500 | 1.94 | 20.5 | 8.8 | – |
| Gree Livo R32 12 000 (115 V) | 9,700 | 8,500 | −25 °C: 6,500 | 1.75 | 19.0 | 8.5 | – |
| Gree Livo R32 12 000 | 9,700 | 9,100 | −25 °C: 6,500 | 1.8 | 19.0 | 8.5 | $1,164 |
| Gree Livo R32 18 000 | 15,300 | 12,100 | −25 °C: 10,200 | 1.85 | 20.0 | 8.5 | $1,836 |
| Gree Livo R32 24 000 | 19,200 | 15,700 | −25 °C: 10,500 | 1.75 | 19.0 | 8.5 | $2,304 |
| Gree Livo R32 30 000 | 24,000 | 23,000 | −25 °C: 16,900 | 1.8 | 22.0 | 9.0 | $2,880 |
| Gree Livo R32 36 000 | 27,400 | 24,600 | −25 °C: 21,000 | 1.8 | 21.0 | 8.5 | $3,288 |
According to NEEP, it delivers 10,000 BTU/h at −8 °C (17 °F), as much as at 8 °C. It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −25 °C (−13 °F) is 5,700 BTU/h, 63% of its nominal 9,000 BTU size.
At 8 °C, its certified maximum capacity reaches 13,300 BTU/h, 48% more than its nominal 9,000 BTU size.
According to NEEP, its COP at −15 °C is 1.94: the highest of the Livo R32 line, which ranges from 1.75 to 1.86 at that temperature.
According to NEEP, its certified maximum capacity at −25 °C (−13 °F) is 5,500 BTU/h, 61% of its nominal 9,000 BTU size.
At 8 °C, its certified maximum capacity reaches 13,136 BTU/h, 46% more than its nominal 9,000 BTU size.
According to NEEP, it delivers 8,500 BTU/h at −15 °C, against 9,100 for the Gree Livo R32 12 000.
At −25 °C, its certified minimum capacity is 1,800 BTU/h (3,070 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 8,500 BTU/h, 71% of its nominal 12,000 BTU size. Its COP there is 1.75.
According to NEEP, it delivers 9,100 BTU/h at −15 °C, against 8,500 for the Gree Livo R32 12 000 (115 V).
At −25 °C, its certified minimum capacity is 1,800 BTU/h (3,070 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 9,100 BTU/h, 76% of its nominal 12,000 BTU size. Its COP there is 1.80.
At 8 °C, its certified maximum capacity reaches 22,500 BTU/h, 25% more than its nominal 18,000 BTU size.
According to NEEP, its certified minimum capacity is at least 7,000 BTU/h at every temperature. In a small, well-insulated room it will cycle on and off more often: size it carefully.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 12,100 BTU/h, 67% of its nominal 18,000 BTU size. Its COP there is 1.85.
At −25 °C, its certified minimum capacity is 3,100 BTU/h (5,800 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 15,700 BTU/h, 65% of its nominal 24,000 BTU size. Its COP there is 1.75.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 23,000 BTU/h, 77% of its nominal 30,000 BTU size. Its COP there is 1.80.
According to NEEP, its COP at −25 °C is 1.54: the highest of the Livo R32 line, which ranges from 1.30 to 1.52 at that temperature.
At −25 °C, its certified minimum capacity is 7,000 BTU/h (10,000 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 24,600 BTU/h, 68% of its nominal 36,000 BTU size. Its COP there is 1.80.
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.A dash in the aid column: amount to be confirmed for this model.
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.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
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Wall-mounted or multi-zone: how do I choose?
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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).