Installation of a GREE Livo R32 wall-mounted heat pump in Ville-Marie
In Ville-Marie , AirGreen installs a GREE Livo R32 wall-mounted heat pump with a discreet hooded path and gravity evacuation . Carefully commissioned for four-season comfort in Montreal and throughout Greater Montreal.
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.
Four-season comfort, careful finishing, and energy optimization designed for Montreal's reality: here is the story of an HVAC installation by AirGreen in a Ville-Marie condo.
A clear project: efficiently air conditioning and heating an urban condo
The accommodation is bright, with large French windows and vertical blinds typical of downtown condominium units. The client's request: a compact, quiet solution capable of providing supplemental heating in winter and comfortable cooling in summer, while maintaining minimal visual impact inside and outside. We offer a GREE Livo R32 wall-mounted heat pump , a proven choice for this type of housing: efficient, reliable, compatible with energy efficiency programs when the configuration meets the criteria, and above all very discreet .
Why the Livo R32 range?
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R-32 refrigerant : better volumetric efficiency and reduced charge compared to R-410A, with performance adapted to the climate of Greater Montreal .
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Typical capacity range (9,000 to 24,000 BTU) : allows precise sizing according to the surface area and envelope of the building.
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Quiet : modulated fan speed and contained sound pressure, ideal for open living spaces.
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Four-season operation : low-temperature heating and automatic dehumidification for humid periods in spring and autumn.
Sizing benchmarks: the AirGreen method
We always size a heat pump based on:
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of the surface and orientation of the parts,
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insulation (windows, thermal bridges),
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internal loads (devices, occupants),
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of the actual usage profile .
Here, the indoor unit serves an open area adjacent to a patio door. The goal is to ensure uniform cooling in the summer and additional heating in the off-season. The Livo R32 range meets this need precisely, without oversizing (a frequent source of discomfort and short cycles).
Installation details: course cleanliness and long-lasting performance
Positioning and interior finishes
We installed the wall head at the top of the wall , away from the ceiling to ensure good air recirculation and simplify filter maintenance. To the right of the unit, the white technical cover descends in a straight line to the bottom of the partition: a clean and discreet vertical path that preserves the aesthetics of the room. Condensate drainage is gravity-driven , which eliminates the need for a pump and reduces noise and potential maintenance points.
Key points of the finish:
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Vertical covered course (approximately 2 m to 2.5 m ), white tint matching the wall.
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Through hole with slight slope for condensate drainage.
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Tight joints and tight capping angles for a linear finish.
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Fixings anchored in the masonry, respecting the manufacturer's clearances .
Refrigeration treatment and commissioning
We follow a rigorous protocol:
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Continuous bending and insulation on the connections to avoid dew points.
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Nitrogen pressurization and leak test .
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Deep vacuum until stabilization (microns monitored).
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Opening of valves , subcooling/superheat control and checking of currents .
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Functional test in cold then in heating , as well as the temperature probe and the defrost logic.
Outdoor unit: controlled vibrations and clearances respected
Although not visible here, the outdoor unit is installed on anti-vibration supports (wall brackets or slab depending on the facade), with compliant rear and side clearances . In Montreal, we systematically provide:
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Snow and runoff management .
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Sufficient height to avoid snowdrifts .
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Dedicated wiring compliant with Code, suitable circuit breaker and clear identification on the panel.
Result: immediate comfort, contained noise, preserved aesthetics
From the moment it is switched on, the fresh air is laminar , without any aggressive drafts. In heating mode, compressor modulation ensures a stable temperature , even during the rapid variations typical of city centers. Noise levels are low, both inside and outside, a major advantage in a condominium.
Good practices for use and maintenance
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Filters : Rinse with warm water every 4 to 8 weeks depending on use.
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Target temperatures : favor realistic instructions and modulation rather than sudden changes.
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Dehumidification mode in summer to improve perceived comfort without excessively lowering the temperature.
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Clearances : Do not obstruct the unit (furniture, curtains).
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Annual inspection : tightening, cleaning exchangers, checking refrigeration and electrical parameters — regular HVAC maintenance maximizes performance and longevity.
Common mistakes… that we avoid
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Winding paths or excessive bends: pressure losses, noise and reduced efficiency.
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Condensate pump unnecessary: source of noise/maintenance avoidable when gravity is possible.
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Insufficient clearances around units: recirculation of hot/cold air and premature frost.
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Oversizing : short cycles, discomfort and increased consumption.
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Lack of external winter protection : snow accumulation, icing and anticipated breakdown.
Grants and Compliance
Depending on the chosen capacity and the energy classification of the configuration, this type of wall-mounted heat pump may be eligible for efficiency programs in Quebec. We guide our clients in verifying the criteria (models, seasonal performance, documentation), and we provide the necessary certifications . In terms of compliance, all our installations comply with the RBQ requirements, the CCQ rules where applicable, and the best practices recommended by the manufacturers.
What the customer gains
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Four-season comfort without heavy lifting.
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Energy savings through modulation and R-32 .
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Silence and visual discretion with clean vertical capping and gravity drainage.
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A long-lasting installation, ready for simple maintenance and long-lasting performance.
Our AirGreen commitment
At AirGreen, we operate throughout Greater Montreal — Montreal , Laval , Longueuil , North Shore , and South Shore —with a consistent requirement: clean, measured, and compliant installations that enhance your space and comfort. For a condo in Ville-Marie , as well as a house in Laval or Brossard , our teams offer the fairest solution : no more, no less.
Tips for going further
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Consider an annual maintenance contract to secure performance and warranty.
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Add Wi-Fi control (if not included) to optimize schedules based on your presence.
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If several rooms need to be served, we can study a Multi-Zone R32 (2 to 5 heads) while maintaining the same logic of cleanliness of the route and control of vibrations.
Naturally integrated keywords : heat pump , wall-mounted air conditioner , HVAC installation , HVAC maintenance , Montreal , Laval , Longueuil , North Shore , South Shore , Ville-Marie , GREE Livo R32 .
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.
More jobs to see, near you
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Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 24 hours.
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).