Installation of a Gree Livo R32 wall-mounted heat pump in Rosemont–La Petite-Patrie
Installation of a Gree Livo R32 heat pump on a flat roof in Rosemont–La Petite-Patrie. Optimized clearances, UV-protected connections, raised support, and careful commissioning. AirGreen covers Montreal, Laval, Longueuil, the North Shore, and the 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
Why this flat roof configuration is a game changer
Montreal plexes often feature gravel roofs with parapets. By positioning the condenser on a raised support, we free up the backyard, reduce noise transmission to neighbors, and ensure optimal airflow. The result: stable performance, even during heat waves or extreme cold.
Equipment profile — Gree Livo R32, the versatile series
The Livo R32 series stands out for its efficient operation in cold conditions, the use of R-32 refrigerant with a lower GWP, and electronics that maintain fine modulation of the compressor. In a dense urban setting like Rosemont–La Petite-Patrie, it offers:
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A reliable heating mode in mid-season and cold weather;
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A quiet refresher, ideal for bedrooms and open areas;
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Moderate consumption thanks to the inverter and optimized thermal exchanges.
The key points of our HVAC installation on this site
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Raised galvanized aluminum support , placed on treated wooden soles to distribute the load and prevent any puncture of the covering. A protective membrane separates the soles from the roof to maintain waterproofing.
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Clear height under the unit to promote air flow, limit snow accumulation and facilitate maintenance.
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Refrigerant lines insulated and UV-sheathed over the entire exterior route, with freeze-thaw resistant clamps and anchors.
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Careful routing to the technical column, which reduces the effective length of the lines and pressure losses.
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Condensate management on the interior side provided by gravity where possible; compact pump installed as an option where architecture requires it.
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Electrical connection on dedicated circuit, compliant protection and service circuit breaker nearby according to the Code in force.
Sizing and comfort: the AirGreen approach
Before installing a heat pump , we carry out a mini-load assessment: orientation, glazed surface, envelope, infiltration and occupancy habits. The goal is not to "oversize" for the heatwave, but to achieve the right power for four-season comfort. The result is measured by:
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Even temperature, fewer on/off cycles;
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A discreet sound level, both indoors and outdoors;
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Controlled energy bills throughout the year.
Installation details: what the roof requires more of
Installing a condenser on a flat roof is not a simple "move." We plan:
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Safe access routes and working at height with lifelines when required;
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Protection of the coating (membranes, slabs or soles) to avoid any perforation;
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Clearances around the condenser (facades and parapets) to ensure air intake/exhaust;
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Snow management : sufficient elevation and orientation away from prevailing snowdrifts;
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Vibration control : anti-vibration pads and tightening to the prescribed torque.
Result obtained at our client in Rosemont
The condenser, perfectly plumb and level , rests on a robust frame that distributes the load. The insulated lines are protected against UV rays and temperature variations. Access for maintenance is clear: filters, refrigeration connections and electrical box remain accessible without dismantling the structure. Inside, the wall-mounted head is positioned to sweep the main living area, with free air intake and lateral clearances respected.
Preventive maintenance: the key to performance
An HVAC installation on a flat roof requires simple but regular monitoring:
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Cleaning of the fins and visual inspection of the insulating sheaths in spring;
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Checking electrical tightening and testing condensates;
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Replacement/maintenance of interior side filters at recommended intervals;
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Control of snow clearance in winter during windy episodes.
These actions ensure stable seasonal performance, reduce component wear and extend machine life.
Grants and environmental compliance
Recent high-efficiency R-32 wall-mounted heat pumps are generally eligible for the main assistance programs in effect in Quebec. We prepare the necessary documents, installation certificates and photos to expedite your application. Our team also guides customers in Laval , Longueuil , the North Shore and the South Shore to align the model selection with the criteria of the targeted program.
What we consistently deliver
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A clean and documented site (installation photos, serial numbers, key parameters);
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Commissioning with verification of pressures and temperatures;
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User training: modes, energy saving instructions, filter maintenance;
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Responsive after-sales service for the following season (maintenance, calibration, optimization).
Why choose AirGreen for your project in Montreal and the surrounding area?
At AirGreen, we combine technical expertise , attention to detail, and respect for the building envelope. Our teams understand the constraints of plexes, condos, and houses in Greater Montreal : access, gravel roofs, parapets, narrow stairwells, and co-ownership schedules. This on-site expertise translates into fast, durable, and discreet construction sites—and tangible comfort from the very first hours of use.
Practical advice for your future project
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Think route : a short route for lines improves reliability and efficiency.
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Plan for maintenance : leave a service corridor around the unit; you will save time.
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Anticipate winter : the elevation and orientation of the condenser limit frost and snow.
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Request documentation : manuals, warranties, technical data sheets; we will give you everything at the start.
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Plan early : In spring/fall, deadlines are shorter and slots more flexible.
In short
This Gree Livo R32 wall-mounted heat pump installation on a flat roof in Rosemont–La Petite-Patrie illustrates our approach: well-sized mechanics, methodical installation that respects the roof, and clear support for maintenance and subsidies. For any project in Montreal , Laval , Longueuil , North Shore and South Shore , our team travels, advises and installs with the same high standards.
Need an estimate for your building or condo? Contact us: we offer turnkey solutions, from load study to commissioning, with quality workmanship that can be seen—and heard—every day.
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).