Installation of a GREE LIVO R32 Wall-Mounted Heat Pump in Rosemont–La Petite-Patrie: Compact Mini Split, Clean Wall Installation, and Efficient Residential Comfort in Montreal
AirGreen installs a GREE LIVO R32 wall-mounted heat pump in Rosemont–La Petite-Patrie: compact mini split, neat wall installation, protected ducts, and HVAC comfort adapted to Montreal housing.
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 discreet and well-integrated HVAC installation in a dense residential area of Rosemont–La Petite-Patrie
This installation of a GREE LIVO R32 wall-mounted heat pump in Rosemont–La Petite-Patrie perfectly illustrates the type of project we often carry out in the residential neighborhoods of Montreal: limited outdoor space, a textured foundation wall, a facade to preserve, restricted access around the unit, and a clear need to obtain a reliable heating and cooling solution without cluttering the property.
In the photo, the outdoor unit GREE LIVO R32 is installed against an exterior wall, above a paved area, with a clean wall mount and well-organized duct passage. The adjacent vertical box protects the connections and gives the whole setup a neater finish. This type of installation requires special attention because the unit must be accessible enough for HVAC maintenance, sufficiently clear to ensure good air circulation, and firmly fixed to limit vibrations transmitted to the structure.
At AirGreen, we know that in areas like Rosemont–La Petite-Patrie, the challenge is not just choosing a good heat pump. You also have to deal with the reality of the building: old walls, narrow side spaces, nearby windows, close neighbors, landscaping, and sometimes condominium or owner requirements. That’s why every HVAC installation in Montreal starts with a serious technical assessment of the location, required capacity, duct routing, and future service access.
Choosing the GREE LIVO R32 for simple, effective, and well-suited comfort
The GREE LIVO R32 is an interesting solution for owners who want to replace an old air conditioning system, add a supplementary heating source, or improve the comfort of a home without installing a central system. As a wall-mounted heat pump, wall air conditioner, and mini split system, it offers a versatile solution for condos, multiplexes, apartments, and urban houses.
One of its major advantages is the use of the refrigerant R32, visible on the outdoor unit's label. R32 is used in several modern air conditioning and heat pump systems for its good energy efficiency and refrigerant charge generally optimized according to the model. It is also an A2L class refrigerant, which requires careful handling by qualified professionals. For the customer, this means it is not just about installing a machine: proper work methods, manufacturer requirements, and applicable standards must be followed.
The Inverter technology, also indicated on the unit, allows the compressor to modulate its operation rather than only running in on-off cycles. This modulation helps maintain a more stable temperature, reduce comfort fluctuations, and limit sudden starts. In a typical Rosemont–La Petite-Patrie home, where rooms may be in a row or partially open, this stability is a tangible daily benefit.
A wall-mounted installation that protects the outdoor space
The outdoor unit was placed on wall mounts, above the paving stone. This approach offers several advantages in a Montreal residential environment:
- it frees up floor space and reduces clutter;
- it limits contact with water, melting snow, and debris;
- it allows easier cleaning around the device;
- it facilitates access to the connections during future wall-mounted heat pump maintenance;
- it improves the visual integration of the installation when it is well aligned.
In this project, the location had to consider the base of the wall, the siding, the routing of the lines, and the clearance in front of the fan grille. An outdoor unit needs to breathe properly. A poor position, too close to an obstacle or in a poorly ventilated area, can reduce performance, increase noise, and force the compressor to work harder.
Our team installed the heat pump in a way that keeps a functional clearance at the front while maintaining a compact placement against the building. The goal was to achieve a clean, durable, and easy-to-maintain installation without compromising the existing outdoor layout.
The routing of the lines: a detail that changes the system's durability
In a mini split installation, the routing of refrigerant lines, the drain, and wiring is just as important as the machine itself. In this installation, you can see a protected and organized vertical passage, which contributes to the cleanliness of the final result.
A good pipe routing must meet several criteria:
Preserve the insulation of refrigerant lines
The pipes must be properly insulated to limit thermal losses and protect the system against moisture. Neglected insulation can cause condensation, reduced efficiency, and premature wear.
Avoid stress on connections
The curves must be clean, without unnecessary folds or excessive stress. A connection under constant tension can become a weak point over time.
Protect against weather conditions
In Montreal, outdoor installations endure freezing, thawing, rain, snow, UV rays, and rapid temperature changes. A protected finish extends the lifespan of the installation.
Plan access for future checks
During a HVAC maintenance, the technician must be able to access the valves, service panel, and connections. An installation that is too tight or poorly planned unnecessarily complicates the work.
An installation that takes noise and vibrations into account
In neighborhoods like Rosemont–La Petite-Patrie, homes are often close to each other. Noise therefore becomes an important factor. Even though modern wall-mounted heat pumps are designed to operate at a reasonable noise level, the quality of the installation directly influences the experience of the client and the neighborhood.
We pay special attention to three elements:
- The strength of the wall supports, to prevent any unnecessary movement.
- The stability of the unit, to reduce vibrations.
- The chosen location, to avoid unnecessarily directing sound towards a window, terrace, or passage area.
In this project, the wall mounting provides a stable base while keeping the device off the ground. This choice is particularly relevant when the pavement does not offer an ideal base or when the client wants to keep an open outdoor space.
Technical points and AirGreen advice for a successful GREE LIVO R32 installation in Montreal
A rigorous commissioning to protect performance
Once the outdoor unit is installed and the pipes connected, commissioning becomes an essential step. At AirGreen, we never consider a wall-mounted air conditioner installation complete simply because the unit is fixed to the wall. Performance also depends on the quality of tests and checks.
A professional commissioning includes in particular:
- checking the refrigerant connections;
- checking the circuit’s tightness;
- vacuuming according to best practices;
- validating electrical connections;
- checking the drainage;
- testing the cooling and heating modes;
- explaining the main functions to the client;
- HVAC usage and maintenance advice.
This rigor is especially important with R32 systems, as handling the refrigerant must be done by qualified and properly equipped technicians. For the owner, this reduces the risks of performance loss, leaks, abnormal noise, or malfunction after installation.
BTU capacity: a choice not to improvise
The GREE LIVO R32 is available in different capacities depending on the housing needs. For this installation in Rosemont–La Petite-Patrie, the appropriate capacity was determined based on the area to be treated, insulation, building orientation, openings, interior layout, and intended use.
The choice of BTU should never be made solely based on the approximate area. A unit that is too small risks running constantly at high capacity, while a unit that is too large can create short cycles, less effective dehumidification, and less stable temperature.
During our evaluations, we analyze in particular:
- the actual area of the zone;
- ceiling height;
- sun exposure;
- the quality of the windows;
- the level of insulation;
- the number of occupants;
- internal heat sources;
- the possible location of the indoor unit;
- the distance between the indoor and outdoor units;
- electrical and architectural constraints.
This approach avoids generic recommendations and allows for proposing a wall-mounted heat pump truly suited to the building.
Subsidies: check the eligibility of the exact model
Subsidy programs for heat pumps can represent a significant financial advantage, but eligibility always depends on the exact model, its certified performance, capacity, program requirements, and the rules in effect at the time of application.
On the visible unit, there is a mention of AHRI certification. This certification can be useful in the technical analysis of a device, but eligibility for a subsidy must always be confirmed with the exact numbers of the indoor and outdoor units as well as with the required official documents.
At AirGreen, we help our clients understand the steps and gather the necessary information when their HVAC installation is eligible. For homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this step can make a real difference in the final project cost.
Common mistakes we avoid on this type of installation
An outdoor installation like this may seem simple at first glance. However, several mistakes can reduce the system's lifespan or harm comfort.
Installing the unit too low
A unit too close to the ground is more exposed to snow, water, leaves, debris, and accidental impacts. Wall mounting helps limit these risks.
Neglecting water drainage
In cooling mode, drainage must be clear and reliable. A poor slope or poorly placed drain can cause unwanted leaks.
Forgetting service access
A device installed too close to a wall, fence, or obstacle becomes difficult to maintain. Accessibility must be planned from the start.
Underestimating the visual impact
In a residential neighborhood like Rosemont, a clean and aligned installation makes a big difference. The choice of conduit routing, the casing, and the outdoor location contribute to the overall appearance.
Choosing based on price alone
The purchase price does not always reflect the quality of the installation, durability, after-sales support, and commissioning accuracy. A well-installed system can offer better performance and fewer problems in the long term.
A customer experience focused on real comfort
In this project, the client wanted an efficient solution without turning the outdoor space into a cluttered technical area. The GREE LIVO R32 met this goal well thanks to its compact size, inverter operation, and adaptation to residential needs. The wall installation allowed for a clean finish, while the protected conduit passage ensures better durability.
After commissioning, the client benefits from a system capable of efficiently cooling during hot days and providing convenient heating during cooler periods. For a Montreal home, this seasonal flexibility is often one of the greatest advantages of a wall-mounted heat pump.
AirGreen's expertise in the central neighborhoods of Montreal
We carry out many installations in environments similar to Rosemont–La Petite-Patrie: narrow alleys, compact backyards, brick or stucco walls, small balconies, limited service entrances, electrical constraints, and aesthetic requirements. This experience allows us to anticipate problems before they become costly.
Our teams regularly work in Montreal, Laval, Longueuil, on the North Shore and the South Shore, with an approach adapted to each building. An installation in a Rosemont plex is not planned the same way as an installation in a detached house in Laval or a condo in Longueuil. The right HVAC contractor must know how to adjust the method, materials, and finishing details to each context.
Practical advice before installing a wall heat pump in Rosemont–La Petite-Patrie
Before planning a similar installation, here are some points to check:
- the available space for the outdoor unit;
- the presence of windows, exits, fences, or obstacles;
- the available electrical capacity;
- the possible route of the ducts;
- the acceptable noise level according to the environment;
- condominium or building rules, if applicable;
- access for technicians;
- the possibility of installing a wall bracket;
- potential eligibility for subsidies;
- the actual heating and cooling needs.
A technical visit allows these elements to be validated and avoids unpleasant surprises on the day of the work.
A clean, durable installation adapted to Montreal’s reality
This installation of a GREE LIVO R32 wall heat pump in Rosemont–La Petite-Patrie demonstrates the importance of well-planned work. The outdoor unit is neatly installed, mounted on wall brackets, with a structured duct passage and good integration into the building. The result meets a concrete need: improving indoor comfort while respecting the available outdoor space.
At AirGreen, we prioritize reliable, meticulous installations designed to last. Whether it's for a heat pump in Montreal, a wall air conditioner in Laval, a mini split in Longueuil, or an HVAC project on the North Shore or the South Shore, our priority remains the same: to offer a properly sized, well-installed, and clearly explained solution to the client.
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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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).