Installation of a Gree Livo R32 wall-mounted heat pump in Plateau-Mont-Royal
AirGreen installs a Gree Livo R32 in Plateau-Mont-Royal: a compact, quiet, and efficient R32 wall-mounted heat pump to stabilize temperature and humidity. A meticulous HVAC installation for condos in Greater Montreal.
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.
Precise comfort in an urban bathroom: a compact wall unit that works silently
In an apartment in Plateau-Mont-Royal , our team optimized the comfort of a bathroom adjoining the bedroom by installing a Gree Livo R32 wall-mounted heat pump . The goal is clear: to stabilize the temperature and humidity of a small space, without encroaching on circulation or interior aesthetics. The result: stable comfort , healthier air, and controlled electricity consumption – all with a discreet integration above the mirror and vanity.
Why a wall-mounted heat pump in a bathroom?
In densely populated downtown Montreal , bathrooms and adjoining rooms often suffer from temperature fluctuations and humidity spikes . A properly sized R32 wall unit addresses these constraints:
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Heating and air conditioning in one unit , ideal for 4-season use.
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Effective dehumidification , limiting fogging on mirrors, odors and mold growth.
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Fine power modulation (inverter technology), for constant comfort and energy savings .
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Low noise level , essential near rest areas.
Focus on the Gree Livo R32: the right balance for urban residential
Gree 's Livo R32 range stands out for its reliable electronics, stable modulation and compact design. For a home on the Plateau, we chose this series for its thermal responsiveness , its ease of HVAC maintenance and its seasonal efficiency adapted to urban occupancy profiles (absences during the day, marked needs in the evening and at night).
Key assets:
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R-32 refrigerant with lower GWP than R-410A.
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Inverter regulation to limit overconsumption during restarts.
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Dedicated comfort modes (dehumidification, night, frost protection depending on configuration).
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Filtration accessible on the front for quick cleaning by the customer.
Design & preparation: make it clean… and sustainable
We prepare each HVAC installation with a rigorous method:
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Electrical check : dedicated circuit with protection adapted to the power of the unit; continuity and polarity test.
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Positioning the template : above the lintel of the French window, in order to benefit from unobstructed air diffusion along the ceiling while avoiding immediate air returns towards the mirror.
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Condensate management : gravity route with regulatory slope to the external discharge point; inspection and non-return plugs to secure the flow.
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Through drilling : controlled angle (2–3°) to protect the envelope and promote evacuation; interior/exterior sealing with HVAC mastic and collar.
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Finish : discreet capping matching the wall and reduced path (short route) to maintain a sober aesthetic in the bathroom.
During commissioning, we protect furniture and surfaces (towels and protective tarps) and validate the drain flow with a water test. The unit is then calibrated : verification of airflow, supply/return temperatures, pressures and indoor/outdoor card communication.
Visible and relevant details of the intervention
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High ceiling installation , centered in relation to the mirror, for controlled air stratification and efficient sweeping of the room.
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Recessed lighting nearby: we adjust the shutter angles to avoid direct blowing on the light fixtures and limit areas of turbulence.
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Window blackout : taking into account the roller blind to avoid creating an air short circuit between the air outlet and the cold window in winter.
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Short route : refrigeration connections and cabling directed laterally; reduction of pressure losses and anchor points.
Sizing: low power, high comfort
For a bathroom and an adjoining space (walk-in/bedroom), we prefer a class 9,000 to 12,000 BTU depending on the internal inputs, the orientation and the level of insulation. The Livo R32 perfectly covers this need:
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Fast ΔT after shower or bath thanks to dehumidification mode.
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Low modulation in nighttime maintenance for appreciable silence .
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Optimized seasonal performance in urban air conditioning (internal loads and glazing).
Challenges encountered and AirGreen solutions
1) Control of condensates in the bathroom.
The proximity of a water point requires increased safety : drain slope measured at the level, anti-insect tip on the outside and anchor collars along the route to avoid pockets of water.
2) Space constraint above the mirror.
We adjusted the unit's seating height to clear the louver, maintain the blowing angle, and retain the maintenance area for cleaning the filters.
3) Risk of direct blowing on the user.
Setting of horizontal/vertical shutters and memorization of “comfort” angles to separate the flow from standing areas (sink/mirror).
Commissioning & Checks
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Vacuum drawing on the refrigeration network (500 microns) and leak test .
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Measurement of temperatures (supply/return) and pressure differences within nominal ranges.
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Subjective acoustic control at 1 meter and 3 meters; validation of low/auto modes.
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Configured user settings : time programming, night mode, ventilation levels.
HVAC Maintenance: Maintaining Performance and Air Quality
We provide a simple maintenance schedule :
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Filters : clean every 4 to 8 weeks depending on use.
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Drain evacuation : pre-summer and pre-winter purge.
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Outdoor unit (balcony/courtyard side): clearing of fins, gentle cleaning, preventive de-icing in winter if accumulation.
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Annual AirGreen visit : refrigeration inspection, terminal tightening, sensors, parameter updates.
Regular maintenance maintains performance and limits consumption on the electricity bill.
Tips for using a bathroom
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Use the dehumidification mode after showers to lower humidity faster than a simple fan.
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Avoid blowing directly towards the mirror to limit re-condensation.
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Maintain a clear air path around the unit (no high shelf in front of the shutter).
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Program a gentle nighttime setting to reduce temperature fluctuations in the adjoining bedroom.
Grants and Compliance
High-performance R32 wall-mounted heat pumps may be eligible for certain energy efficiency assistance programs, subject to certain criteria (certifications, power, low-temperature performance, installation by a licensed contractor). We validate eligibility for each project and provide the required compliance documents for your procedures.
What the customer gains immediately
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Immediate and uniform thermal comfort .
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Drier air after showers, clear mirrors faster.
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Quiet operation , compatible with urban lifestyles.
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Optimized consumption thanks to modulation and the right power.
AirGreen: your HVAC partner for Montreal, Laval, Longueuil, North Shore and South Shore
We design custom solutions for apartments, condos, and plexes in Greater Montreal. Whether you're considering a wall-mounted heat pump , a MultiZone , a central system , or annual HVAC maintenance , we'll guide you from thermal analysis to commissioning with a high level of finish and responsive post-installation support .
For this project on the Plateau-Mont-Royal , the Gree Livo R32 stands out as a balanced solution: efficient , compact and designed for the city.
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?
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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).