Installation of a Gree (Livo R32 range) wall-mounted heat pump in Rosemont–La Petite-Patrie
AirGreen installs a Gree wall-mounted heat pump (Livo R32) in Rosemont–La Petite-Patrie: high positioning, discreet capping, gravity drainage and four-season performance. HVAC experts in Montreal, Laval, Longueuil, North Shore and 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
Four-season comfort in a Montreal apartment with period charm
At AirGreen , we adapt HVAC installation to the reality of Montreal apartments: textured ceilings, original woodwork, sometimes irregular gypsum partitions and little space available above the doors. In this project in Rosemont–La Petite-Patrie , we installed a Gree wall-mounted heat pump from the Livo R32 range , selected for its performance, its quietness and its reliability in cold weather. The objective: to ensure stable comfort in summer and winter, without altering the charm of the place.
Why a Gree Livo R32 for this accommodation?
Gree 's Livo R32 family is ideal for compact apartments in Montreal 's central neighborhoods. Its advantages:
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R-32 refrigerant : better efficiency and lower environmental impact than R-410A.
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Inverter technology : fine modulation of compressor speed for reduced consumption and stable temperature.
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Extreme cold mode : maintains heat during sub-zero episodes that are frequent on the island of Montreal .
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Quiet operation : perfect for a bedroom or open living room.
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Discreet display on the front, readable from a distance to check the instructions.
This range meets the criteria of the grant programs offered in Quebec for high-performance heat pumps . We assist our customers in Montreal, Laval, Longueuil, the North Shore, and the South Shore in preparing applications when the chosen model is eligible.
Site constraints and implementation strategy
The room has several typical Rosemont features: textured ceiling , wood moldings around the openings, load-bearing wall at the back. We opted for a high position , centered on a clear section of wall, in order to optimize:
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stratification and air intake in the upper part;
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transverse sweeping of the flow without blowing directly onto the relaxation area;
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maintenance access to the filter and shutter .
The clearance from the ceiling is respected to avoid any recirculation of hot air in winter and to facilitate the removal of the hood during maintenance. The proximity of a structural upright guided the fixing of the plate : we used dowels adapted to hollow areas and located an anchor on a wooden upright to secure the load.
Refrigeration and finishing
In order to maintain the aesthetics of the woodwork while maintaining a short path for the lines, we have:
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drilled with a slight slope towards the outside to allow gravity drainage of condensation;
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grouped copper lines , communication cable and drain in a neutral, discreet capping , which fits the angle of the wall;
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calibrated the pipe length to stay within the factory range recommended by Gree and limit pressure losses.
The passage to the outside is through a wall leading to the rear of the building. Outside, the condenser is fixed on wall brackets with anti-vibration pads and adequate clearances for airflow and service . The installation prevents any runoff into the passage areas.
AirGreen Methodology: Precision and Sustainability
Each AirGreen installation follows a strict protocol, documented upon delivery:
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Electrical check : circuit identification, dedicated circuit breaker and conformity of ratings.
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Pre-brazing under nitrogen : prevention of internal oxidation of copper tubes.
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Nitrogen pressure test and deep vacuum controlled to the micron.
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Commissioning according to manufacturer parameters: load compensation if necessary (length/height), control of currents , superheating and subcooling .
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Configuration of modes (heating, air conditioning, dehumidification), adjustment of shutters and calibration of the setpoint for a comfortable flow without drafts.
We record everything in a service sheet given to the customer: pressure values, electrical measurements, serial numbers, installation photos. This traceability facilitates annual HVAC maintenance and warranty.
Comfort and acoustics in everyday life
The choice of wall-mounted heat pump in an apartment is mainly measured by use:
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Reduced noise level from the indoor unit: conversation and sleep preserved.
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Even temperature distribution thanks to automatic scanning .
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Programmed night mode which adapts the setting without perceptible variations.
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Effective dehumidification during heat waves, a recurring issue in Montreal .
We always make the customer aware of the importance of cleaning the filters (gentle suction or rinsing), clearing the space in front of the machine and scheduling periodic maintenance : cleaning the coil, checking the electrical connections, checking the drain.
Estimation of loads and sizing
In this medium-sized dwelling with insulation typical of Rosemont–La Petite-Patrie plexes, a 12,000 BTU rating from the Livo R32 range is often appropriate for a large open-plan room with an adjoining kitchen; the bedrooms can be covered by diffusion if the doors remain open, or by a second head if required. Our team always checks:
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orientation and solar gains ;
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the level of insulation and the sealing of the windows;
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the occupation and load of internal devices.
This calculation guarantees the balance between efficiency , silence and longevity of the compressor .
Points to watch out for in an old apartment
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Ceiling clearance : avoid gluing the unit; a minimum margin ensures good air intake and facilitates maintenance.
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Controlled drilling : locate wires and studs, protect historic moldings .
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Drain : favor gravity ; if not possible, provide an accessible and silent condensate pump .
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Vibrations : Use buffers and tighten to the recommended torque to avoid resonances on light walls.
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Exterior sound management : distance from neighboring windows, fan orientation, and programmed silent mode .
Result: immediate comfort and optimized energy bill
After commissioning , the room benefits from a stable temperature with a clear setpoint visible on the front. The user quickly observes:
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a reduction in consumption thanks to inverter modulation;
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better controlled humidity levels in summer;
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efficient additional heating in the heart of winter, complementary to existing systems.
The fine adjustments made by our technicians allow you to take advantage of all the useful functions (automatic ventilation, restart after failure, anti-cold mode).
AirGreen Service in Greater Montreal
Our team covers Montreal , Laval , Longueuil , the North Shore and the South Shore . We support each household in:
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the choice of power and the appropriate range (Livo R32, Vireo R32, etc.);
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construction site planning to limit the impact on daily life;
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the preparation of documents useful for subsidies when applicable;
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the implementation of an annual maintenance plan to maintain performance over time.
Usage advice provided to the customer
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Maintain a stable setpoint (minimal difference between day and night) to take advantage of the inverter.
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Keep 1 m clear in front of the wall head facade.
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Clean filters every 4 to 8 weeks depending on usage.
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Have the installation checked once a year : deep cleaning, refrigeration and electrical checks.
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In winter, leave the indoor unit running continuously at low speed to avoid short cycling.
This HVAC installation in Rosemont–La Petite-Patrie illustrates our approach: clean installation , respect for the building , measured performance and customer follow-up . A well-sized Gree wall-mounted heat pump transforms the comfort of a Montreal apartment while controlling the energy bill.
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).