Installation of a GREE LIVO R32 Inverter Wall-Mounted Heat Pump in Verdun: a Mini Split Air Conditioner Installed Under a Covered Structure with Reinforced Wall Brackets
AirGreen installs a GREE LIVO R32 wall-mounted heat pump in Verdun: mini split inverter, sturdy wall mounts, installation in a semi-covered area, and local HVAC expertise.
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.
An HVAC installation in a semi-covered space where precision mattered as much as cooling power
In Verdun, our AirGreen team carried out the installation of a wall-mounted heat pump GREE LIVO R32, a mini split system of the wall air conditioner type perfectly suited to the needs of an urban residential building where the available outdoor space was limited. The project photo shows a very particular configuration: the outdoor unit is installed under a covered structure, fixed to the wall on metal supports, with a low ceiling, exposed beams, a nearby window, a foundation wall, and existing technical elements to work around.
This type of environment is common in certain areas of Verdun, especially in alleys, narrow backyards, spaces under balconies, semi-sheltered areas, or older buildings where adding a heat pump must be carefully considered. Here, the goal was not simply to install an outdoor unit. The device had to be installed safely, maintain good air circulation, preserve floor access, limit vibrations, and organize the passage of refrigerant lines in an already crowded space.
The GREE LIVO R32 was chosen for its compact size, Inverter operation, and use of the refrigerant R32. The BTU capacity was selected according to the actual needs of the indoor area to be cooled and heated, taking into account the surface area, insulation, orientation of the dwelling, and air circulation. At AirGreen, this sizing is an essential step: a poorly calibrated device can harm comfort, waste energy, and reduce customer satisfaction.
An unusual location under a low ceiling
The most striking aspect of this installation in Verdun is the location of the outdoor unit. Unlike a classic installation on an open facade or on a ground slab, the device was installed in a semi-covered space, under an existing structure. The painted metal beams, the worn ceiling, the foundation wall, and the technical environment around the unit are clearly visible.
In this context, our primary concern was air circulation. An outdoor wall-mounted heat pump unit must be able to properly draw in and expel air. When a unit is installed too close to a ceiling, side wall, or obstacle, air recirculation, increased operating pressure, and reduced efficiency can occur. Before finalizing the location, our team checked clearances, available space openings, and the direction of air discharge.
Wall mounting allowed clearing the floor and keeping the unit at a practical height. In a space like this, the floor can be used for passage, temporary storage, or technical access. Placing the unit on solid wall mounts prevents it from being directly exposed to dirt, accumulated water, debris, and minor impacts that can occur in a work or traffic area.
Wall mounts adapted to weight, vibrations, and the building
In the photo, the GREE outdoor unit rests on two metal mounts fixed to the wall. This choice is important. A durable HVAC installation depends as much on the quality of the unit as on the strength of its mounting. The existing wall, made of a foundation section and an older surface part, required special attention to choose the right anchoring points.
Our technicians carefully positioned the mounts to properly distribute the load, keep the unit level, and reduce vibrations transmitted to the structure. In Verdun buildings, where some constructions are several decades old, this caution is essential. A rough attachment can create noise, crack a fragile surface, or complicate future maintenance.
The choice of wall mounts offers several advantages in this project:
- the unit stays elevated from the ground;
- access under the unit remains possible;
- risks related to water, dust, and debris are reduced;
- the fan maintains adequate front clearance;
- maintenance remains simpler;
- the installation is cleaner and better integrated into the available space.
Why the GREE LIVO R32 was a good choice for this setup
The GREE LIVO R32 is a wall-mounted model well suited for residential installations where an efficient, compact, and reliable system is desired. Its Inverter compressor allows the unit to modulate its operation according to actual demand, which promotes a more stable indoor temperature and avoids abrupt cycles.
In a Verdun home, this stability can make a big difference. Urban buildings may have narrower rooms, shared walls, sun-exposed windows, or sections that are harder to cool. A well-placed wall air conditioner helps correct these variations and improve daily comfort, especially during the hot and humid periods of the Montreal summer.
The refrigerant R32, indicated on the unit, is one of the important technical features of this system. It requires rigorous installation, especially for refrigerant connections, vacuuming, leak testing, and commissioning. At AirGreen, these steps are carried out methodically because they directly affect the reliability of the heat pump.
An installation in an urban environment: restricted access, low ceiling, and existing elements
The environment visible in the photo shows several real constraints. You can see beams, a small window, existing cables, a covered structure, and tools on the floor during the work phase. These details clearly illustrate the reality of an installation in an existing building: you have to adapt to the place, not the other way around.
Our team had to deal with:
- a low ceiling above the outdoor unit;
- an existing metal structure;
- an old wall surface;
- a nearby window;
- limited workspace;
- existing cables and technical elements;
- the need to keep sufficient clearance in front of the fan;
- the requirement to provide access for HVAC maintenance.
Every decision was made to achieve a balance between performance, safety, durability, and accessibility. In a project like this, it would have been risky to install the unit too low, too close to an obstacle, or on an insufficiently stable surface. The final solution allows the device to operate properly while fitting into the available space.
The technical steps that make the difference
A mini split installation is never just about mounting the outdoor unit. The invisible steps are often those that determine the quality of the result.
Refrigerant line routing analysis
We first validated the passage of refrigerant lines between the indoor and outdoor units. In an older building, the route must be carefully chosen to avoid excessive bends, areas prone to damage, and passages difficult to maintain.
Mounting and leveling
The supports were positioned to ensure a solid base. An improperly leveled outdoor unit can cause vibrations, hinder internal drainage, and accelerate wear on certain components.
Refrigerant connections
The fittings must be clean, well tightened, and tested. The quality of the connection affects performance, compressor lifespan, and system stability.
Vacuuming
Vacuuming removes air and moisture from the circuit before startup. This step is essential for a wall-mounted heat pump operating with R32.
Operational tests
After commissioning, we check the operation in cooling mode, the unit's response, noise level, communication between components, and the absence of abnormal behavior.
What Verdun homeowners should remember before installing a wall-mounted heat pump
The installation of a GREE LIVO R32 wall-mounted heat pump in Verdun shows how much the building's configuration influences the final result. In several neighborhoods of Montreal, Laval, Longueuil, the North Shore, and the South Shore, properties do not always offer a simple outdoor space. It is precisely in these situations that the expertise of an HVAC installer becomes crucial.
Common mistakes to avoid in a semi-covered space
A semi-covered space may seem practical because the unit is partially protected from the weather. However, certain mistakes should be avoided.
Installing the unit in a space that is too enclosed
An outdoor heat pump must expel air freely. If the space is too confined, the device may recycle its own air, which reduces its efficiency.
Neglecting ceiling height
A ceiling that is too close can hinder heat dissipation. The entire space must be analyzed, not just the wall where the unit will be mounted.
Forgetting maintenance access
Even if the installation is neat, it must remain accessible. A technician must be able to inspect, clean, and diagnose the device without excessive difficulty.
Mounting the unit on a fragile surface
Supports must be anchored to a suitable structure. An old or uneven wall requires serious analysis before installation.
Leaving refrigerant lines unprotected
Ducts must be protected against friction, impacts, and outdoor conditions. A professional finish extends the installation's lifespan.
Customer experience: more comfort without sacrificing usable space
For the customer, the result is simple: a wall air conditioning and supplementary heating solution that improves indoor comfort without unnecessarily taking up floor space. In an urban building, this point is important. Every square foot counts, especially in yards, garages, passageways, or semi-covered areas.
The GREE LIVO R32 heat pump allows better control of the targeted area's temperature. In summer, it helps reduce heat and humidity. During cooler periods, it can provide efficient heating depending on the outdoor temperature and housing needs. The Inverter system gradually adjusts its operation, which helps maintain more consistent comfort.
Grants and eligibility: a verification to be done according to the exact combination
Some wall-mounted heat pumps may be eligible for financial aid programs depending on current criteria, BTU capacity, exact model numbers of the indoor and outdoor units, as well as applicable energy requirements. For a GREE LIVO R32 model, eligibility must be verified at the time of submission with the exact installed combination.
At AirGreen, we support our clients through this verification. We provide the necessary information about the device, a detailed invoice, and useful data to facilitate procedures when the system is eligible. Our goal is to help the client make an informed decision, without reducing the choice of device to the subsidy alone. Comfort, installation quality, and durability must remain at the heart of the project.
Why choose AirGreen for an HVAC installation in Verdun
This installation reflects our way of working: analyzing the building, adapting the solution, installing cleanly, and planning for future maintenance. We regularly work in complex environments in Montreal, Laval, Longueuil, on the North Shore, and on the South Shore. Urban projects often require more precision because space is limited and building constraints are more numerous.
In Verdun, buildings often have a history, a particular structure, and technical access points that are less straightforward than in newer constructions. Our team takes these realities into account. We don’t just look for the quickest place to install the device; we look for the location that will offer the best balance between performance, safety, noise, appearance, and ease of maintenance.
A successful GREE installation in a complex space
This installation of a GREE LIVO R32 wall-mounted heat pump in Verdun shows that a good result depends on a series of well-executed technical decisions. The choice of wall mounting, fixing on supports, respecting clearances, analyzing the low ceiling, and managing existing elements allowed the outdoor unit to be integrated into a space that required much more than a standard installation.
For homeowners considering adding a wall air conditioner, a heat pump, or a mini split system, this project highlights one essential thing: the chosen model matters, but the quality of the installation matters just as much. At AirGreen, we combine field expertise, technical rigor, and local knowledge to deliver durable, clean installations tailored to the reality of each building.
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?
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Are there grants?
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How cold can it heat?
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Is it noisy?
The outdoor unit is covered in ice: is that normal?
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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).