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 : 12,000 BTU wall-mounted heat pump , rear cross-through, short connections and gravity evacuation. A clean, quiet and durable HVAC installation for a renovated apartment.
Take a tour of the installation
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.
An interior renovation project where every detail counts: four-season comfort, short runtimes and an invisible finish.
Context: renovate without compromising on comfort or aesthetics
At AirGreen , we are working on a simply renovated apartment in Rosemont–La Petite-Patrie (Montreal) . The owners wanted efficient supplemental heating and precise air conditioning in a passageway open to the kitchen. The ceilings are equipped with LED recessed lights , the walls are new, and a high ventilation grille is already in place nearby. The priority is clear: an efficient, discreet , and durable HVAC system , integrated into the clean style of the space.
We recommend a Gree Livo R32 12,000 BTU wall-mounted heat pump for its fine modulation, seasonal efficiency, and compact design that blends seamlessly into the framing wall. The R-32 range improves performance and reduces environmental impact, while meeting the efficiency requirements sought in Greater Montreal.
What we achieved: a careful layout and an ultra-short route
Inner head positioning
The head is centered on the circulation wall approximately 2.1 m from the floor. This position prevents any direct blowing onto seated occupants, frees up low furniture, and allows the air jet to follow the ceiling before diffusing into the kitchen and hallway. The motorized shutter is set for a gentle forward sweep to even out the temperature.
Invisible rear crossing and optimized line length
We use a rear hole directly behind the machine: the refrigerant lines exit outside by the shortest possible distance . This strategy:
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reduces pressure losses and improves compressor performance ;
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removes the interior capping , guaranteeing a refined aesthetic;
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limits intervention time and simplifies future HVAC maintenance operations.
Condensate drainage by gravity
The layout allows for continuous gravity drainage , without a pump. We maintain a stable minimum slope , with vapor barriers and waterproofing at the crossing points. The advantage is twofold: silence and long-term reliability , essential assets in apartments.
Renovation coordination
The accommodation is being finished (technical openings visible on the kitchen side). We are coordinating:
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dedicated power supply with circuit breaker of the prescribed Gree rating;
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grounding and clearance compliance;
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synchronization with the painter for clean touch-ups around the mounting plate template.
External unity and respect for the building
The outdoor unit is installed in accordance with the rules of the condominium and the municipality, clear of any obstacles and protected against vibration transmission thanks to damped supports. We provide for the management of winter defrost water to avoid ice accumulation near pedestrian traffic.
Why the Gree Livo R32 for a Rosemont apartment?
Performance and real comfort
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Inverter technology : the machine continuously adjusts its power, reduces ON/OFF cycles and stabilizes the temperature .
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R-32 : Better SEER/HSPF at equivalent power, lower refrigerant charges and improved carbon footprint.
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Silence : in partial mode, the interior noise level remains very low, ideal for teleworking and quiet evenings.
Compatibility with urban needs
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Recent envelope but marked internal gains (open kitchen): the 12,000 BTU covers the needs while maintaining a wide low modulation range.
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Filtration : The filter cartridge captures fine dust; the configuration facilitates quick access for monthly cleaning .
Technical focus: the key steps that make the difference
Soldering and sealing
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Brazing under nitrogen , deep vacuum with controlled dehydration of the bonds;
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Nitrogen pressure test and pressure monitoring before opening the valves;
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Sealing of penetrations inside and outside (HVAC compatible mastic and vapor barrier).
Commissioning and settings
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Checking blowing temperatures , pressures , superheating and subcooling ;
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Auto/Heat/Cool mode adjustment according to occupant usage;
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Orientation of the fins to avoid air currents in the passage area.
Electricity and compliance
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Dedicated circuit to the panel, compliant circuit breaker rating;
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Service switch when required by the outdoor location;
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Polarity and continuity measurements before starting.
Concrete result for the occupants
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Immediate comfort from the first use, without a “cold snap” in the corridor;
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Aesthetics preserved thanks to the absence of a visible chute inside;
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Minimal noise and low consumption in mid-season, the longest period of use in Montreal .
What this installation teaches for apartments in Montreal, Laval and Longueuil
Best practices to remember
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Shortest possible path between indoor head and outdoor unit to preserve performance.
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Priority gravity evacuation for reliability and silence.
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Rear drilling when the configuration allows: aesthetics and easy maintenance.
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Installation height adapted to promote air mixing without direct blowing.
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Renovation coordination : reserve a construction site window for installation and powering up at the right time.
Pitfalls avoided
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No unnecessary condensate pump (source of noise/maintenance).
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No oversized lines or excessive loops that penalize the compressor.
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No decorative trunking visible inside, in order to protect the architectural line.
Grants and Eligibility
High-efficiency R-32 wall-mounted heat pumps may be eligible for assistance programs in Quebec. We verify each file for Montreal , Laval , Longueuil , as well as for the North Shore and the South Shore , according to the capacity, performance and installation protocol required by the organizations.
HVAC Maintenance: Maintaining Performance and Air Quality
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Clean the filters every 4 to 6 weeks during use.
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Annual inspection : electrical connections, flow, fixing, refrigerant parameters.
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Exchanger hygiene : gentle treatment if necessary to prevent biofilm and odors.
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Exterior clearances maintained (snow, leaves) to maintain air flow.
Simplified Load Study: Why 12,000 BTUs Here
The apartment benefits from a well-insulated envelope but an open plan that generates internal gains (kitchen, lighting, occupants). A well-modulated 12 kBTU covers most of the needs, limits cycles and optimizes the COP . On heat peaks, the configured air flow and sweeping avoid stratification.
Why AirGreen for your project in Rosemont, Villeray, Verdun or Brossard?
Our team sizes, installs, and commissions your heat pump using rigorous procedures (deep vacuum, pressure testing, and settings). We pay careful attention to the finish and guide customers through the documentation needed for assistance programs. Whether it's for a wall-mounted air conditioner in a new condo or an upgrade in a plex, we operate throughout Greater Montreal— Montreal, Laval, Longueuil, the North Shore, and the South Shore —with one constant requirement: lasting comfort .
Project Quick Facts
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Type : single-zone wall-mounted heat pump
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Brand : Gree – Livo R32
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Capacity : 12,000 BTU (open kitchen-hallway room)
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Route : back crossing , very short connections (< 3–4 m)
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Condensates : gravity , without pump
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Special features : new wall, recessed ceiling, adjacent ventilation grille , renovation/electricity coordination
Need a similar installation?
We plan, size, and install your HVAC system with a level of finish suited to careful renovations. Contact us for an accurate quote and advice on grants available in your area.
The unit on this job, in figures
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 big day, step by step
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 would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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).