Installation of a Gree (Livo R32 range) wall-mounted heat pump in Chomedey
AirGreen installs a Gree wall-mounted heat pump (Livo R32) in Chomedey : raised condenser above the garage, hooded finish, short route and performance in cold climates, with subsidy support 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.
An exemplary installation above a garage: performance, cleanliness and service access
At AirGreen , we design each HVAC installation as a coherent whole where mechanics, architecture and daily use align. In this project carried out in Chomedey (Laval) , our team installed a Gree wall-mounted heat pump – Livo R32 range . The outdoor condenser , fixed above the garage door on sturdy wall brackets , perfectly illustrates our approach: securing the equipment against snow and splashes, optimizing air circulation and facilitating maintenance, while respecting the aesthetics of the brick facade.
Residential context and client objectives
The townhouse has a paved driveway leading to a double garage . The owners wanted:
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efficient cooling for the upper floor exposed to the sun;
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additional heating modulating electricity consumption in the off-season and in moderately cold weather;
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an outdoor location that does not interfere with parking or daily traffic;
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a clean installation with durable equipment and clear access for service.
Why the Gree Livo R32 range for Chomedey
The Gree Livo R32 belongs to the new generation of wall-mounted heat pumps :
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R-32 refrigerant with lower GWP than R-410A;
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inverter technology for fine modulation of power, better thermal stability and lower consumption ;
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controlled acoustics on the condenser and evaporator side;
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characteristics favorable to eligibility for current financial aid programs , depending on the chosen capacity and current requirements.
For a residential area of Laval , where the facades are close together and the garage entrances are heavily used, the Livo R32 stands out for its compact size , its silence and its reliability in cold climates .
Condenser installation: raise, clear, preserve
We chose to install it on galvanized brackets above the garage lintel. This configuration provides several concrete advantages:
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Winter protection : the unit remains out of the snowpack and protected from road salt deposits.
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Service access : the equipment is accessible by ladder without obstructing the garage opening.
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Safety and traffic : nothing on the ground, no obstacles for cars, bicycles or garbage cans.
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Airflow : Rear and side clearance in accordance with the manufacturer's recommendations for optimal airflow .
The base of the support receives anti-vibration pads , limiting transmission to the masonry. The discharge plane is slightly inclined to promote the flow of water from defrosting cycles.
Drilling, refrigeration lines and finishing
The refrigeration path is short and straight, with a clean hole in the brick and then the garage wall. We implement:
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freeze/thaw compatible outer sleeve and sealant;
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high density insulation on the lines, UV-resistant rigid cover up to the entrance;
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drip loop to prevent any water infiltration;
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stainless steel anchors for a long-lasting hold.
A reduced path (typically 3 to 6 m depending on the position of the interior head) reduces pressure losses and improves the seasonal efficiency of the wall-mounted heat pump .
Electrical connection and compliance
In the immediate vicinity of the condenser, we install the code-required proximity switch , visible on the facade. The wiring is mechanically protected over the entire exposed section. The rating and protection at the panel are sized according to the Gree nameplate and the actual circuit length. All ground connections and crimps are verified by measurement and traction.
Condensate management on the interior side
The interior wall head drains condensate by gravity with a continuous slope towards the outside, the most reliable and quiet solution. The passage through the temperate volume of the garage limits the risk of freezing ; if necessary, we insulate the exposed section. This approach eliminates the use of a sump pump, reduces maintenance and eliminates a potential source of noise.
AirGreen Commissioning Methodology
Our standard procedures guarantee performance from the first start:
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Torque-controlled flares with calibrated edges.
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High pressure nitrogen test to validate the tightness of the entire circuit.
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Deep vacuum (≤ 500 microns) with stabilization and vacuum resistance test.
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Opening the valves and adjusting the load if necessary depending on the length.
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Functional checks : intensity, overheating/subcooling, supply/return temperatures, inverter modulation.
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User configuration : flow rates, shutter orientation, night mode, simple locks.
Noise, neighborhood and vibrations
The Gree Livo R32 's raised installation and low-frequency modulation limit the noise level felt on the driveway and inside the garage. The silent blocks on the support and the respect of the clearances prevent air recirculation, a common source of whistling and loss of efficiency.
Aesthetics and durability of the brick facade
On a red brick facade, visual harmony counts. We:
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align the bracket to the brick beds for a clean reading;
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seal each anchor in the sound masonry ;
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let's take care of the waterproofing to avoid infiltration into the garage;
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provide, where relevant, anti-corrosion protection on cuts and fixings.
These choices guarantee a discreet and lasting ensemble.
Usage gains: comfort and savings
The wall-mounted heat pump ensures rapid cooling of rooms overlooking the driveway and very stable additional heating . Thanks to the inverter , the machine works for a long time at low power , which:
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reduces consumption ;
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limits on/off cycles;
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increases the life of components;
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maintains comfortable humidity in summer.
Grants and administrative support
The combination of R-32 , inverter and good seasonal performance makes the Gree Livo R32 eligible for financial assistance programs when the criteria are met. Our team supports owners in Montreal, Laval, Longueuil, North Shore and South Shore to validate eligibility (BTU capacity, operating temperatures, efficiencies), gather parts and maximize assistance .
HVAC Maintenance: Maintaining Performance
Regular maintenance extends performance and reliability:
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bi-monthly cleaning of the interior head filters during peak season;
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gentle rinsing of the external battery in spring;
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annual AirGreen inspection : pressures, intensities, defrosting, electrical tightening, condition of covers and support;
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permanent clearance of at least 60 cm in front of and on the sides of the condenser (snow, bins, ladders).
Pitfalls to avoid (feedback)
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Condenser too low : exposure to snow, increased noise and risk of corrosion.
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Lines without hood : UV, shocks and frost bites weaken the insulation.
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Drilling without sleeve : possible infiltration towards the garage.
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Insufficient clearances : air recirculation, frost and reduced efficiency.
Our raised layout, short travel and hooded finish meet these challenges precisely.
Result: a clean, accessible and efficient installation
The Gree – Livo R32 condenser, installed above the garage on brackets , remains protected from shocks and snow , while providing quick service access . The owners benefit from four-season comfort , controlled consumption and a neat facade. It is a typical AirGreen achievement: efficient , discreet and sustainable for the daily lives of Chomedey families.
Why choose AirGreen for your wall-mounted heat pump in Laval and Greater Montreal?
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Mastery of local buildings : integrated garages, brick facades, narrow streets.
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Recent equipment (R-32 / R-454B) , quiet and efficient in cold climates.
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Rigorous commissioning procedures and clear guarantees .
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Grant support for Montreal, Laval, Longueuil, North Shore, South Shore .
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HVAC maintenance service that maintains long-term performance.
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).