Installation of a GREE LIVO R32 Wall-Mounted Heat Pump in Saint-Constant on the South Shore: Compact Mini Split for Precise Comfort and a Well-Protected Facade
AirGreen installs a GREE LIVO R32 wall-mounted heat pump in Saint-Constant: mini split R32, neat wall installation, protected piping, and lasting HVAC comfort on the South Shore.
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 careful installation in Saint-Constant, designed for performance, aesthetics, and durability
In Saint-Constant, on the South Shore of Montreal, our AirGreen team installed a GREE LIVO R32 wall-mounted heat pump, a mini split system designed to provide efficient heating and cooling in a discreet format. This project perfectly illustrates what many homeowners in Montérégie are looking for: a reliable solution, well integrated on the exterior of the house, capable of improving daily comfort without weighing down the facade’s appearance.
The project photo shows a typical environment of residences on the South Shore: an exterior wall made of gray siding, a section of pale stucco, existing ventilation elements, a landscaped area at the base of the wall, and limited space to position the outdoor unit. In this context, a successful HVAC installation is not just about mounting a heat pump in the right place. It requires a precise reading of the building, planning the routing of pipes, proper clearance management around the unit, and a clean exterior finish.
At AirGreen, we opted for a wall-mounted installation on a metal bracket, which keeps the outdoor unit above ground level, away from snow accumulation, stagnant moisture, and plant debris. This approach is especially relevant in Saint-Constant, where freeze-thaw cycles, freezing rain, and snow can shorten the lifespan of a poorly positioned installation.
Why choosing a GREE LIVO R32 was suitable for this property
The GREE LIVO R32 is a wall-mounted mini split heat pump appreciated for its compact size, inverter operation, and use of the R32 refrigerant. For this project, the choice of this series met three priorities: improving indoor comfort, limiting visual impact outside, and offering an efficient solution for regular residential use.
The installed system is a wall-mounted heat pump that combines two essential functions:
- Air conditioning in summer, to maintain a stable temperature during hot and humid periods.
- Heating in the cold season, to reduce dependence on traditional electric systems when conditions allow.
- Modulating operation thanks to inverter technology, which adjusts performance according to actual demand.
- Refrigerant R32, known for its energy efficiency and growing presence in modern residential HVAC systems.
- Discreet indoor wall format, ideal for single-family homes, condos, and small residential spaces.
Even when the exact BTU capacity must always be confirmed according to the building's actual heat load, the goal remains the same: avoid a unit that is too weak, which runs continuously without reaching the desired comfort, or too strong, which starts and stops too often. In this type of project in Saint-Constant, our work therefore begins with analyzing the room or area served, insulation, solar orientation, number of occupants, glazed openings, and interior layout.
Site reading: an exterior wall that required real planning
One of the most interesting aspects of this installation is the outdoor location. The GREE unit is mounted on a side wall, near a dark gray siding and a section of pale stucco. This type of surface requires special attention, as every drilling, anchoring, and conduit passage must be planned to protect the building envelope.
The wall mount was installed to provide a stable base for the outdoor unit. This method offers several concrete advantages:
- It frees up ground space and protects the unit against snow accumulation.
- It reduces the risks of prolonged contact with water or soil.
- It facilitates HVAC maintenance, especially access to the fan, coils, and connections.
- It allows for a cleaner installation when landscaping is already in place.
- It helps maintain good air circulation around the unit.
In the photo, you can also see a long vertical duct cover in metallic gray, harmonized with the exterior cladding. This detail is important: a high-performance HVAC installation must also be well finished. The duct cover protects refrigerant lines, wiring, and the drain from UV rays, impacts, temperature variations, and premature wear. It also helps give the whole system a more professional look.
Management of refrigerant lines, drainage, and power supply
For a GREE LIVO R32 wall heat pump, the quality of the connection is as important as the choice of model. Refrigerant lines must be carefully installed, properly insulated, and protected along their entire exposed length. A bend that is too tight, poor drainage slope, or damaged insulation can cause performance, condensation, or durability issues.
On this project in Saint-Constant, we paid special attention to three elements:
The passage of refrigerant lines
The lines connecting the indoor unit to the outdoor unit must follow a logical path, as neat as possible, while respecting the building's constraints. The vertical duct cover here helps maintain a clean appearance despite the height of the passage.
Condensate drainage
A wall air conditioner produces condensation water when operating in cooling mode. This water must be properly drained, without running down the facade, damaging the plaster, or creating dangerous ice during cold periods.
The stability of the outdoor unit
The wall mount must be securely anchored, perfectly level, and suitable for the weight of the unit. A poorly leveled unit can generate more vibrations, prematurely wear certain components, and complicate internal drainage.
An exterior finish that respects the appearance of the house
In many projects in Montréal, Laval, Longueuil, on the North Shore and on the South Shore, clients tell us the same thing: they want an efficient heat pump, but they don’t want the installation to look like a makeshift addition. This is especially true when the unit is visible from an entrance, a side yard, or a landscaped area.
Here, the installation was designed to reduce visual impact. The pale-colored GREE outdoor unit contrasts with the gray siding but remains compact. The gray vertical conduit cover blends well with the wall, while the unit’s position avoids encroaching on the traffic area or landscaping. This attention to finish is part of our approach at AirGreen: we do not treat aesthetics as a secondary detail.
Common mistakes to avoid when installing a mini split
Poor installation can reduce the performance of a heat pump, even when the chosen device is of good quality. In the case of a GREE LIVO R32, as with any mini split system, certain errors often recur when the work is not entrusted to a specialized team.
Installing the unit too close to the ground
In Quebec, an outdoor unit placed too low can quickly be blocked by snow, ice, or debris. A well-positioned wall installation, like this one, helps extend the system’s lifespan.
Neglecting pipe protection
Exposed refrigerant lines without conduit covers can deteriorate faster. Insulation can crack, water can seep in, and the exterior appearance can become less clean after a few seasons.
Forgetting the drain slope
A poorly installed drain can cause water backflow, stains on walls, or moisture problems inside. This is a point we systematically check.
Choosing the wrong capacity
The choice of the number of BTUs should not be based solely on a quick estimate of the area. The room’s orientation, ceiling height, insulation, windows, and air distribution must be taken into account.
Drilling without considering the building envelope
Each penetration must be properly sealed. In Saint-Constant, as elsewhere on the South Shore, climate variations require rigorous protection against water and air.
The result: a well-integrated GREE LIVO R32 system, ready for Quebec seasons
The final result is a compact, clean, and functional installation. The outdoor unit is well cleared, the pipes are protected, the wall mount is stable, and the whole respects the appearance of the house. For the client, the benefit is immediate: more consistent indoor comfort, better air conditioning management during the summer, and an effective supplementary heating source depending on conditions.
What this installation brings to the owner
This GREE LIVO R32 wall-mounted heat pump allows the owner to enjoy a responsive, quiet, and modulating system. Thanks to inverter operation, the device can adjust its speed instead of only operating in on-off mode. This modulation helps maintain a more stable temperature, reduce uncomfortable fluctuations, and improve overall efficiency.
For an owner in Saint-Constant, this type of installation is particularly relevant when you want to:
- Improve the comfort of a living area, a floor, an office, or an underserved zone.
- Add efficient air conditioning without installing ducts.
- Reduce the use of electric baseboards during part of the heating season.
- Modernize a property with a compact HVAC solution.
- Obtain a clean installation that respects the exterior appearance of the house.
Subsidies and eligibility: a point to verify before installation
For owners in Montréal, Laval, Longueuil, the North Shore and the South Shore, subsidies can influence the choice of a heat pump model. Available programs vary according to current criteria, the device's performance, the installed configuration, and the administrative requirements applicable at the time of the project.
At AirGreen, we support our clients in this verification. We help confirm the necessary information for the file, including the brand, model, detailed invoice, and required technical elements. For an installation like this GREE LIVO R32 in Saint-Constant, eligibility must always be validated according to the list and conditions applicable at the time of purchase and installation.
Practical advice for homeowners considering a similar installation
Before choosing a heat pump, it is best to plan the project with a global vision. The price of the device is only one element. The quality of the installation, the positioning of the unit, the routing of the ducts, and future access for maintenance have a direct impact on long-term satisfaction.
Here is what we recommend to homeowners:
Check the outdoor location before confirming the model
A device may look excellent on paper but be poorly suited to a wall that is too narrow, a poorly ventilated area, or a hard-to-reach spot. In this project, wall installation was a logical solution to preserve the land and protect the unit.
Consider maintenance from the start
A wall-mounted heat pump must remain accessible. Cleaning the indoor filters, inspecting the outdoor unit, clearing around the fan, and checking the drains are part of good HVAC maintenance.
Prioritize a durable finish
A well-installed duct cover, solid anchors, clean sealing, and well-planned ventilation prevent many future problems.
Request a thorough assessment
A good assessment helps choose an appropriate capacity, reduce costly mistakes, and better anticipate the necessary work. At AirGreen, we value preparation as much as the installation itself.
The AirGreen approach on the South Shore
Our teams regularly install HVAC systems in Saint-Constant, Candiac, La Prairie, Brossard, Longueuil, as well as in Montreal, Laval, and on the North Shore. This local experience allows us to quickly recognize the common constraints of Quebec homes: sensitive siding, tight spaces, condominium requirements, difficult access, narrow side walls, longer piping distances, and demanding winter conditions.
In this project, our goal was clear: to deliver a wall-mounted air conditioner and mini split heat pump installation that is reliable, clean, and durable. The result reflects a rigorous working method: wise choice of location, protection of pipes, sturdy wall support, discreet finishing, and attention to both visible details and hidden technical elements.
An installation that shows the importance of a job well done
This installation of a GREE LIVO R32 in Saint-Constant demonstrates that a heat pump project is never limited to the device itself. The real performance depends on the whole: model selection, sizing, quality of drilling, sealing, unit level, drainage, connections, mechanical protection, and finishing.
For owners comparing several quotes, it is essential to look beyond the listed price. A cheaper installation can become costly if the pipes are poorly protected, if the drain is badly placed, if the unit vibrates, or if maintenance access is complicated. Conversely, a well-thought-out installation from the start offers better peace of mind, a cleaner appearance, and more consistent performance throughout the seasons.
At AirGreen, we apply the same rigor to every project, whether it is a house in Saint-Constant, a condo in Montreal, a duplex in Laval, a residence in Longueuil, a property on the North Shore, or a residential project on the South Shore.
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
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
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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).