Installation of a GREE LIVO R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in Sainte-Dorothée, Laval
AirGreen installs a GREE LIVO R32 wall-mounted heat pump in Sainte-Dorothée, Laval: outdoor unit in a narrow courtyard, neat connections, and reliable HVAC comfort.
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The job on one screen
The unit’s data sheet
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.
The article, chapter by chapter
A controlled outdoor installation in a narrow yard in Sainte-Dorothée
In Sainte-Dorothée, Laval, our AirGreen team completed the installation of a wall-mounted heat pump GREE LIVO R32, a residential mini split system designed to provide effective comfort in both cooling and heating. This project stands out for a very practical aspect that many homeowners know well: the available outdoor space was limited, with a unit installed near a patio door, a vertical siding wall, a wooden fence, and a relatively narrow passage.
The construction photo shows the GREE outdoor unit in the middle of connection and verification. Tools are still placed on top of the device, refrigerant lines are being finalized, and a measuring instrument is connected to the system to validate the commissioning parameters. This type of image sums up the real work behind a professional HVAC installation: it’s not just about placing a machine outside, but connecting, testing, adjusting, protecting, and delivering a reliable system.
In this area of Laval, semi-detached houses, townhouses, and properties with limited side yards often require precise technical choices. The outdoor unit must be installed in a location that respects air circulation, clearances, maintenance access, mechanical stability, neighborhood constraints, and the overall appearance of the yard. In Sainte-Dorothée, our team had to work with an outdoor space occupied by a glass door, a wall with existing ducts, a nearby fence, and an access that had to remain convenient for the client.
A GREE LIVO R32 adapted to residential needs
The GREE LIVO R32 is a wall-mounted heat pump appreciated for its compact size, inverter technology, and operation well suited to the needs of houses, condos, apartments, and residential spaces in Greater Montreal. It efficiently cools during hot and humid days while providing a supplementary heating source during cooler periods.
The refrigerant R32 is one of the important elements of this generation of equipment. It allows good thermal transfer efficiency and aligns with the new directions of the residential HVAC market. For an owner, this means a modern system designed to provide good performance while meeting current expectations for efficiency and comfort.
In this project in Sainte-Dorothée, the choice of the GREE LIVO R32 met several objectives:
- improve indoor comfort without modifying the existing central system;
- offer an effective wall air conditioner during summer;
- provide a heat pump that is simple to use daily;
- install a compact outdoor unit in a restricted outdoor area;
- maintain a clean finish around the patio door;
- ensure sufficient access for future maintenance;
- limit the visual impact in a yard already structured by a fence and outdoor elements.
The BTU capacity was selected according to the interior area served, insulation, room layout, sun exposure, ceiling height, and the client’s usage habits. This point is essential: a mini split heat pump must be sized according to the building’s reality, not just a general area estimate.
The main challenge: installing the outdoor unit in a tight space
The outdoor unit of a heat pump must breathe properly. Even if the device seems compact, it needs sufficient clearance to expel air, operate without overheating, and maintain its efficiency. In this project, the presence of the nearby wooden fence required special attention. An installation too close to an obstacle could have hindered air circulation, increased perceived noise, or complicated future interventions.
Our team therefore planned the location taking several parameters into account:
- distance from the fence;
- fan orientation;
- access to service valves;
- route of refrigeration lines;
- proximity to the exterior wall;
- protection against accidental impacts;
- accessibility for cleaning and HVAC maintenance;
- integration with ducts and elements already present on the facade.
The photo also shows the presence of a box and vertical ducts nearby. In this type of environment, it is important to properly coordinate the passage of new lines with the existing ones. Poor planning can create unnecessary clutter, complicate future work, or give the installation a disorderly appearance. At AirGreen, we always strive to maintain a logical, clear, and clean layout.
Refrigeration connections made with method
The step visible in the photo corresponds to an important technical phase: connection and commissioning. The refrigerant lines connect the indoor unit to the outdoor unit. They must be cut, flared, connected, and insulated precisely. A poorly made connection can cause performance losses, refrigerant leaks, or operational problems in the medium term.
During an installation of GREE LIVO R32 wall heat pump, our technicians pay special attention to:
- quality of flares;
- proper tightening of fittings;
- insulation of pipes;
- protection of lines outdoors;
- leak testing;
- vacuuming;
- validation of pressures and temperatures;
- proper operation in cooling and heating mode.
These steps are not always visible once the job is finished, but they make all the difference in the system's durability. A unit can be well placed and visually appealing, but if the connections are not precise, the customer may experience problems later. That is why our approach is based on a complete commissioning, not just a physical installation.
The importance of the outdoor unit in overall performance
In a wall-mounted air conditioner or mini split heat pump installation, the indoor unit often attracts more attention because it is visible in the room. However, the outdoor unit plays an essential role in the system's performance, comfort, and reliability. It houses the inverter compressor, the fan, the exchangers, and several critical components.
In Sainte-Dorothée, the outdoor location had to allow the system to operate properly during summer heat, but also during colder periods when the heat pump is used for heating. The unit must remain accessible for maintenance, as clear as possible, and installed on a stable base.
A successful outdoor installation must also take into account the realities of Quebec:
- snow accumulation;
- freeze and thaw cycles;
- freezing rain;
- humidity;
- leaves and debris;
- proximity to fences;
- reduced access in winter;
- drainage requirements around the unit.
Even a compact machine like the GREE LIVO R32 must be installed with these conditions in mind. In Laval, as in Montreal, Longueuil, on the North Shore and the South Shore, the outdoor environment directly influences the final quality of the project.
What this installation in Sainte-Dorothée reveals about a good HVAC installation
The exterior finish matters as much as performance
In a residential yard, a poorly organized installation quickly becomes noticeable. Misaligned pipes, a unit placed too close to a walkway, exposed wires, or insufficient protection can harm the appearance of the outdoor space and complicate maintenance. On this project, the goal was to keep a functional and clean installation despite a tight environment.
The vertical exterior siding, patio door, fence, and existing ducts required some discipline in the layout. Each element had to have its place. The GREE outdoor unit was positioned to maintain good accessibility while limiting clutter in the yard.
At AirGreen, we know a customer doesn’t just want a system that works. They also want an installation that respects their property. This means protecting surfaces, avoiding unnecessary drilling, organizing pipes clearly, and leaving a clean site after the work.
Common mistakes to avoid for the outdoor unit
Many heat pump problems start with a poor choice of outdoor location. Before installing a wall-mounted heat pump, certain common mistakes must be avoided:
- placing the unit too close to a fence or wall;
- blocking the fan's air outlet;
- installing the device in a hard-to-access area;
- neglecting the impact of snow;
- forgetting the necessary space for service valves;
- choosing a location exposed to shocks or frequent traffic;
- leaving the pipes without proper protection;
- underestimating the importance of vacuuming and testing.
These details may seem secondary at the time of installation, but they directly influence the equipment's lifespan. A professional HVAC installation aims to avoid these problems from the start.
Inverter technology for more stable comfort
The GREE LIVO R32 uses inverter technology that allows the system to adjust its operation according to actual needs. Rather than operating only with abrupt on-off cycles, the device modulates its effort. This modulation helps maintain a more stable temperature, reduce uncomfortable fluctuations, and optimize energy consumption based on conditions.
For homeowners in Sainte-Dorothée, this type of system is particularly interesting in rooms where comfort changes quickly: sun-exposed living room, open area, upstairs bedroom, home office, or finished basement. A well-installed mini split heat pump can correct a difficult-to-heat zone without requiring major work throughout the house.
Subsidies and energy efficiency
Customers who choose a wall-mounted heat pump are often interested in energy savings and financial aid programs. Eligibility for a subsidy always depends on the exact model, its capacity, certifications, the current program, and conditions at the time of installation. The brand name alone is not enough to confirm eligibility.
At AirGreen, we help our customers verify relevant information before making a decision. For a model like the GREE LIVO R32, it is important to validate the technical data specific to the installed unit, including capacity, efficiency, and applicable certifications. This verification helps the customer better understand the real cost of the project and the possibilities for financial aid.
Commissioning that protects the investment
After installation, commissioning is a crucial step. Our technicians do not leave a site just because the unit is in place. They ensure the system works properly, that connections are sealed, that measurements are consistent, and that the customer understands the basics of use.
During a project like this in Sainte-Dorothée, commissioning includes notably:
- general operation check;
- air conditioning test;
- heating test when conditions allow;
- drainage validation;
- observation of the outdoor unit's behavior;
- vibration control;
- checking communication between units;
- explanation of the main settings to the customer.
This diligence reduces the risk of unnecessary service calls and ensures a better experience from the first days of use.
Maintenance tips for a GREE LIVO R32
A well-installed heat pump must also be well maintained. The customer can help maintain the system's performance by regularly cleaning the indoor unit's filters, keeping the outdoor unit clear, and monitoring the accumulation of leaves, snow, or debris around the device.
We also recommend periodic professional HVAC maintenance. This allows checking the condition of coils, drainage, connections, operating levels, the fan, pipe insulation, and the overall cleanliness of the system. Good maintenance helps maintain comfort, limit consumption, and extend the equipment’s lifespan.
AirGreen in Laval: local expertise in residential installations
AirGreen regularly works in Laval, especially in Sainte-Dorothée, Chomedey, Fabreville, Sainte-Rose, Auteuil, Vimont, Duvernay, and Laval-des-Rapides. Each neighborhood has its own realities: houses with narrow yards, condos with regulations, limited side access, older buildings, outdoor units to place near a fence or entrance, electrical constraints, and finishing requirements.
Our experience in Greater Montreal allows us to offer solutions adapted to the site. We don’t just aim to sell a machine. We analyze the space, needs, constraints, and the client’s daily use. This approach makes a significant difference in the final result.
This GREE LIVO R32 installation in Sainte-Dorothée is a good example. The outdoor space was limited, but the project was carried out with clear organization, careful connections, and special attention to future accessibility. The result: a wall-mounted heat pump ready to provide effective comfort, with an outdoor installation well integrated into the building.
An installation designed to last
A good HVAC system starts with a good choice of equipment, but it mainly depends on the quality of the installation. The GREE LIVO R32 installed in Sainte-Dorothée offers an effective solution to improve residential comfort, but its long-term performance relies on details: location, clearances, connections, vacuuming, testing, pipe protection, and maintenance.
For owners in Montreal, Laval, Longueuil, the North Shore and the South Shore, this project highlights the importance of entrusting the installation to a team that understands both the technical aspects and the real constraints of the building. A wall-mounted heat pump installation must be clean, safe, durable, and adapted to the space. That is exactly what we delivered in Sainte-Dorothée.
The job tools
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.
How the job unfolds
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 we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
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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).