Installation of a Gree Livo R32 wall-mounted heat pump in Rosemont–La Petite-Patrie
AirGreen installs a Gree Livo R32 in Rosemont–La Petite-Patrie: R-32 wall-mounted heat pump , short cooling path, gravity evacuation, raised supports. Four-season comfort and savings for Montreal, Laval, Longueuil, North Shore and South Shore .
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.
Four-season comfort in a renovated condo: our precise, clean and sustainable AirGreen approach
At AirGreen , we transform living spaces in Greater Montreal with HVAC solutions that are efficient, efficient, and adapted to the local climate. This project in Rosemont–La Petite-Patrie illustrates our approach: a carefully sized Gree Livo R32 wall-mounted heat pump , neatly installed under the ceiling to free up wall space and provide efficient heating in winter and gentle cooling in summer . In this newly renovated condo, still equipped with electric baseboard heaters, our mandate is clear: lower operating costs, stabilize humidity in summer, and ensure consistent comfort without noise or drafts.
The context: a compact space, new finishes and a requirement for absolute cleanliness
We are working in a multi-purpose room (office/bedroom) with freshly painted walls, recessed lighting, and existing baseboards. The client wants:
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A discreet, white, compact wall-mounted unit , positioned high to optimize air stratification and diffusion.
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A clean, dust-free construction site , compatible with protected floors.
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An energy-efficient solution to reduce reliance on baseboard heaters and stabilize the temperature in adjacent rooms.
The Gree Livo R32 stands out here for its excellent performance/price ratio, its R-32 fluid with a lower GWP than R-410A, and its reliable heating performance in cold weather. We are using a single-zone configuration of 12,000 BTU (typical for 350–550 sq ft depending on the envelope), confirmed after our measurements and load calculations.
Technical choices: why the Livo R32 is suitable for this project
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Heating efficiency in extreme cold : the Livo R32 maintains a useful power level at −25°C , ideal for Montreal. This significantly reduces the use of baseboards.
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Silence : a very quiet indoor head , perfect for teleworking and sleeping.
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R-32 : better volumetric efficiency and reduced environmental footprint compared to R-410A.
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Easy maintenance : washable filters, easy access for annual HVAC maintenance.
Interior head installation: height, aesthetics and air diffusion
We place the head under the ceiling , centered on the load-bearing wall, at ~2.1–2.2 m from the floor. This positioning:
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maximizes the reach of the air jet across the room and the neighboring corridor,
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avoids blowing directly on the occupants,
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protects finishes by limiting visible drilling.
The motorized shutter directs the air horizontally in summer and slightly downwards in winter to circulate the hot air accumulated near the ceiling. The result: a uniform temperature , fewer cold spots near the floor and comfort felt more quickly.
Refrigeration path and condensate evacuation: short, discreet and gravity-driven
Behind the head, we make a single 2 ¾–3 in. drilling with PVC sheath. The refrigeration path (insulated copper pipes + communication) follows a direct route to the outside, over a length of approximately 4–5 m , limiting pressure losses and facilitating service.
Condensate drainage is by gravity with a constant slope towards the outside: it is reliable , silent, and avoids the need for pump maintenance. For the exterior finish, we use discreet white UV capping , perfectly aligned with the moldings. Inside, there are no visible gutters: the result is clean .
Outdoor Condenser: Supports, Clearances and Winter Protection
Outside, we fix the Gree condenser on galvanized wall brackets with anti-vibration pads . We respect the standard clearances (rear, sides, front) to guarantee efficiency and accessibility.
In urban areas, drifting snow and ice are realities: we raise the condenser and, if necessary, add a retention tray and snow clearance . The external disconnect switch is installed in a waterproof box, and the dedicated power supply comes from the home's electrical panel via a circuit breaker adapted to the currents of the Livo R32.
Electricity and communication: security, compliance and discretion
Our certified electricians carry out:
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a circuit dedicated to the condenser, calibrated according to the nameplate,
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the shielded communication link between the indoor and outdoor unit,
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grounding and tightening to the prescribed torque.
We test for continuity and insulation, and clearly label the new circuit on the panel. Everything is invisible in the room, preserving the recent finishes.
Commissioning: vacuuming, charging, testing and balancing
Our standard procedure includes:
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Oxide-free solder with adequate flux, nitrogen protection.
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Nitrogen leak test (proof) according to the pressure recommended by Gree.
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Deep vacuum (< 500 microns), stabilization and residual humidity control.
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Load opening and checks for superheat/subcooling , currents, input/output delta T.
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Acoustic validation and comfort settings (speed, orientation, Wi-Fi if applicable).
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Submission of a commissioning report with photos and values.
Result: a quiet , responsive machine, optimized for Montreal's climate.
Real comfort and expected savings
In this type of configuration (well-insulated urban housing), the Livo R32 allows:
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to cover the majority of heating needs in the off-season and a good part of the winter,
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to significantly reduce the use of plinths, which are particularly expensive,
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to provide precise cooling in summer, with fine humidity management.
We leave the baseboards on as backup for rare extreme cold spells, ensuring redundancy in line with best practices.
Salient Installation Details and AirGreen Best Practices
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Short refrigeration length (~4–5 m): better efficiency and easier service.
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Gravity condensates : zero pump noise, increased reliability.
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White UV exterior capping : clean finish, long-lasting plastics.
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Calculated installation height : optimal diffusion in the adjacent corridor.
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Anti-vibration on supports: reduction of structural transmissions.
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End-of-construction cleaning : no residual dust, floors protected.
What to avoid (feedback from urban environments)
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Oversize the device: an 18,000 BTU that short cycles wears out the compressor, circulates the air less well and dehumidifies poorly.
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Condensates without slope : risk of interior dripping, odors and mold.
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Low-end exposed capping : premature yellowing and freeze/thaw cracks.
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Supports too low : grip on ice, reduced defrosting efficiency.
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R-410A in new buildings : we now favor the R-32 or R-454B ranges for their performance and lower environmental impact.
HVAC Maintenance: The Key to Longevity and Performance
We recommend annual HVAC maintenance :
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Washing the filters and checking the cleanliness of the internal exchanger,
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Inspection of the outdoor unit (battery, fan, tank), gentle cleaning,
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Checking electrical connections , line insulation and supports,
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Testing condensate drains in cold mode,
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Update of comfort settings (modes, speeds, time slots).
Regular maintenance keeps COP high, extends life and preserves warranty .
Grants and Eligibility
Recent R-32 wall-mounted heat pumps for extreme cold are generally eligible for assistance programs in effect in Quebec (e.g., Hydro-Québec programs and municipal programs where applicable). We assist our customers in gathering documents (detailed invoices, installation photos, serial numbers, technical data sheets) and optimizing the application according to the chosen configuration.
Deadlines, cleanliness and communication
Our teams operate dust-free : floor protection, drilling under vacuum, debris collection and cleanup . We plan the site in one day in most similar cases, including electricity and commissioning, while maintaining transparent communication before, during and after installation.
Results and guarantees: stable comfort, contained noise, reduced bill
In Rosemont–La Petite-Patrie, this Gree Livo R32 delivers stable and quiet comfort . The user notes:
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a reduction in the load on the plinths in winter,
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a gentle freshness in summer without drying out the air,
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a very low noise level during video conferences or at night.
At AirGreen, we guarantee installation, support after-sales service , and remain available for HVAC maintenance at regular intervals. Our goal: to ensure that every unit installed in Montreal, Laval, Longueuil, on the North Shore and the South Shore operates at its best potential for many years.
Want a similar project?
We evaluate your home, validate the ideal BTU output , explain the possible refrigeration paths and finishes, then suggest the R-32/R-454B brands and ranges that meet your priorities (refrigeration performance, connectivity, budget). Our promise: a careful, durable HVAC installation and clear support, from the first call to the first comfortable evening at home.
Natural keywords : heat pump , wall-mounted heat pump , Gree Livo R32 , HVAC installation , HVAC maintenance , Montreal , Rosemont–La Petite-Patrie , Laval , Longueuil , North Shore , South Shore .
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.
Which type of equipment for your project?
Pick what looks like your need.
Four mistakes we do not make
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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?
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).