Installation of a Gree (Livo R32 range) wall-mounted heat pump in Saint-Léonard (Montreal)
Gree Livo R32 wall-mounted heat pump installed in Saint-Léonard: bracket mounting, short run, quiet summer/winter comfort. AirGreen, HVAC installation and maintenance experts in Montreal , Laval , Longueuil , North Shore , South Shore .
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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
Client context and objectives
At AirGreen , we are currently working on a brick residential building in the heart of Saint-Léonard . The owner wanted a compact HVAC solution to air condition the main space in the summer and provide efficient heating support in the off-season, without cluttering the land or disrupting the aesthetics of the side facade overlooking the pedestrian walkway. Our recommendation: a Gree wall-mounted heat pump – Livo R32 range , in a single-zone 12,000 BTU configuration (ideal range for an open living area of 35 to 55 m² depending on the insulation).
Why the Gree Livo R32 range for this project?
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R-32 refrigerant with low GWP compared to R-410A, therefore a better environmental profile and optimized thermal performance.
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Compactness of the outdoor condenser and low noise level , ideal for narrow side aisles typical of Montreal plexes .
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Very good seasonal efficiency in air conditioning and light heating; compatible with the usual requirements of provincial programs when the efficiency criteria are met.
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Reliable electronics, locally available parts, and easy maintenance—a plus for simple preventative HVAC maintenance .
Our HVAC installation approach on this site
Site analysis and preparation
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Brick facade on semi-buried basement: we aim for a layout that respects standard clearances (air discharges, obstacles, openings, ground).
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Presence of a landscaped driveway with white stone borders: our team plans a protected intervention zone to avoid any deterioration.
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Two basement windows and a service exit: the unit's mounting must maintain access and limit acoustic transfers inside.
Fixing on wall brackets and vibration management
We install the condenser on professional-grade galvanized brackets , sized for dynamic loads and treated with anti-corrosion treatment. Anti-vibration pads mechanically isolate the unit from the masonry to limit any sound transmission to the building—a crucial consideration in terraced or semi-detached houses in Montreal and the North Shore / South Shore .
Height and snow removal
The condenser is deliberately raised above the foundation sole, providing:
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ground clearance to prevent the accumulation of snow and ice;
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better drainage of defrost condensates ;
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free air circulation around the exchanger.
This height also prevents debris from being thrown up during heavy rains or spring thaws.
Crossing and refrigerated journey
In this single-zone configuration, the refrigerant connection (insulated copper + communication cable) exits at the rear of the condenser , which reduces the visual impact and limits the effective length to ± 3–5 m between the indoor unit and the condenser. A clean hole, with the correct diameter, is made with a vapor barrier sleeve to ensure the casing is watertight. The aesthetics are neat thanks to a short and perfectly aligned route .
Power supply and safety
An external disconnect box is installed in the immediate vicinity of the condenser, in accordance with the Code. The dedicated circuit joins the main panel via a conduit properly fixed to the masonry. We systematically validate:
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circuit breaker calibration ,
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grounding ,
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polarity and voltage under load,
to ensure smooth commissioning.
Condensate management
In air conditioning , the gravity slope of the indoor unit drain is sufficient; no condensate pump is required here, which reduces noise and maintenance. In heating mode , defrost condensate drains under the condenser, away from traffic. If necessary, we offer controlled drip solutions for paved surfaces.
Vacuuming, charging and testing
Our technicians carry out:
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Deep vacuum (≤ 500 microns) with stability test;
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Progressive opening of the valves, leak testing and reading of operating parameters (pressure, intensity, supply/return temperature);
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Checking airflow and quiet mode ;
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Fine configuration of the remote control and explanation of the modes to the customer (Eco, Night, Auto defrost, Anti-cold air draft).
Result: discreet comfort and tangible efficiency
Perceived performance
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Responsive and consistent air conditioning in the main area, with a gentle indoor blower and very low outdoor noise levels – appreciable in a residential area.
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Stable mid-season heating down to moderate negative temperatures; the system relieves the load on existing electric radiators and reduces bills during mid-seasons.
Aesthetic integration
The side-mounted installation, bracket mounting , and flush wiring maintain a clean facade. From the driveway, the unit remains discreet and does not encroach on the passageway, a point often overlooked during an HVAC installation in an urban area.
Noise and neighborhood
Thanks to the anti-vibration pads and the Quiet mode setting, the noise environment remains very low. This is a key criterion for closely spaced houses in Saint-Léonard , Anjou or Montréal-Nord , where the distance between neighbors is limited.
Best practices and usage tips
For the heat pump in the Montreal climate
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Maintain a clear area of 30–60 cm around the condenser (vegetation, snow).
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In winter, do not obstruct the base: defrosting requires free flow.
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Clean the indoor unit filter every 4–6 weeks during peak season.
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Schedule annual HVAC maintenance : check connections, drain, electrical tightening, load operation, and clean the coil.
Energy savings
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Use the moderate setting (23–24°C in summer; 20–21°C in the off-season).
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Activate Eco mode and time programming to reduce unnecessary cycles.
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Combine the heat pump with simple practices (solar shading in the afternoon, sealing of openings) for increased overall efficiency.
Notable technical points of this project
Observed implantation details
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Outdoor unit anchored to the wall on the plastered foundation area, above the basement windows; working height optimized for maintenance.
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Short refrigeration length , direct crossing, which improves efficiency and reduces pressure losses .
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Disconnect box within easy reach of technicians; clean and aligned electrical routing.
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Narrow but clear side aisle, allowing free ventilation of the condenser and easy access to the service.
Challenges and solutions
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Proximity of openings (basement windows): we strictly respect vertical and horizontal clearances, with the air discharge oriented away from the bays.
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Landscape protection : tarpaulins and temporary guardrails along the mineral massif to prevent any projections.
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Winter management : increased height + clear orientation = less risk of persistent frost .
Grant Eligibility and Compliance
The new generation of R-32 wall-mounted heat pumps offer efficiencies that, depending on the exact configuration (BTU, climate-controlled version, SEER/HSPF coefficients), can meet the financial assistance criteria in effect in several programs in Quebec. We systematically verify:
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the efficiency levels of the indoor unit + condenser assembly ( AHRI certificates),
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the low temperature operating range (down to −25°C/−30°C for some variants),
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documentary requirements (detailed invoice, installation photos, proof of electrical compliance).
Our team supports the client step by step to maximize eligibility when the chosen model meets the scales.
Quick comparison: wall-mounted heat pump vs. alternative solutions
Compared to a wall-mounted air conditioner alone
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The heat pump offers reversible heating , therefore a higher return on investment in Montreal , Laval , Longueuil , and on the North Shore / South Shore , where the mid-seasons are long.
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Reduced annual consumption thanks to COP > 1 in light heating, where electric baseboards would be at 1:1.
Compared to a central heat pump
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Less investment and work (no conduits).
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Ideal for light renovations when you want to minimize drilling and preserve the existing interior.
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Modularity: possibility of evolving towards a MultiZone if other rooms need to be covered later.
AirGreen Maintenance and Warranty
We offer an annual HVAC maintenance plan :
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gentle washing of the exchangers,
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control of operating parameters ,
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checking the fixings, the anti-vibration pads , the drain , and the electrical disconnection ,
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updated usage advice based on site history.
The manufacturer's warranty applies according to the Livo R32 range model, and our installation warranties cover labor under AirGreen terms. Our goal: lasting reliability and peace of mind in all seasons.
Conclusion: a clean , optimized and scalable installation
This HVAC installation in Saint-Léonard demonstrates the balance sought by many homeowners: four-season comfort , discreet integration , controlled consumption, and simplified maintenance . The Gree wall-mounted heat pump (Livo R32 range) perfectly meets the needs for air conditioning in the summer and efficient backup in the spring and fall, while integrating without compromise into the brick architecture so characteristic of the Montreal sector.
Are you planning a similar project in Montreal , Laval , Longueuil , on the North Shore or the South Shore ? Our AirGreen team will assist you from sizing to grants , with careful installation and concrete advice to get the most out of your heat pump on a daily basis.
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).