Installation of a Gree Livo Gen4 Wall-Mounted Heat Pump in Rosemont–La Petite-Patrie, Montreal
Explore how AirGreen transformed a Montreal home with the Gree Livo Gen4 Heat Pump, blending modern comfort with historic charm. A perfect choice for efficiency and quiet operation!

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.
Bringing Efficiency and Comfort to a Historic Montreal Neighborhood
In the vibrant and historic neighborhood of Rosemont–La Petite-Patrie in Montreal, AirGreen has completed a remarkable installation of the Gree Livo Gen4 Wall-Mounted Heat Pump. This project showcases not only our technical expertise but also our commitment to providing eco-friendly and efficient HVAC solutions to our valued clients in Montreal, Laval, Longueuil, North Shore, and South Shore.
The Project: A Seamless Integration of Modern Technology in a Classic Setting
Our latest installation involved the Gree Livo Gen4, a wall-mounted mini split heat pump renowned for its exceptional efficiency and sleek design. This 12,000 BTU unit was selected for its ability to provide optimal comfort and energy savings, making it an ideal choice for the diverse climate of Montreal.

Key Features of the Gree Livo Gen4
- Capacity: 12,000 BTU
- Energy Efficiency: 18.5 SEER
- Heating Capacity: Effective down to -25°C
- WiFi Connectivity: Included
- Sound Levels: 27 / 47 dB(A) indoors, 52 dB(A) outdoors
- Refrigerant: R-410A
- Voltage: 220V
- Warranty: 12 years for the compressor and parts, with an additional warranty option
This installation is not just about adding a heating and cooling system; it's about enhancing the living experience in a neighborhood that balances the charm of the past with the conveniences of the present. The sleek and compact design of the Gree Livo Gen4 ensures that it integrates seamlessly into the aesthetic of the home, preserving its historical beauty while offering modern comfort.
The Installation Process: Precision and Care in Every Step
At AirGreen, we pride ourselves on our meticulous installation process, ensuring that every component is placed and secured with the utmost precision. For this project, we used high-quality piping (1/4 - 3/8 inches) to connect the indoor and outdoor units, ensuring optimal performance and efficiency. The installation was completed with a focus on minimizing noise and vibration, a critical aspect in densely populated urban areas.

The outdoor unit, positioned discreetly on a sturdy wall bracket, was installed to ensure maximum airflow and efficiency. We also took extra care to route the necessary wiring and piping through the building without disrupting the aesthetics or structural integrity. This attention to detail is a hallmark of our work, ensuring that the system not only performs excellently but also enhances the property's overall value.
Why Choose the Gree Livo Gen4?
The Gree Livo Gen4 is more than just an HVAC system; it's a smart investment in your home's comfort and energy efficiency. With WiFi connectivity, homeowners can easily control the system remotely, adjusting settings to ensure the perfect indoor environment at all times. This feature is particularly valuable in Montreal's varied climate, allowing for easy adaptation to both hot summers and cold winters.
Moreover, the unit's quiet operation ensures that comfort does not come at the expense of peace and tranquility. With sound levels as low as 27 dB(A) indoors, the Gree Livo Gen4 operates almost silently, making it ideal for bedrooms, living rooms, and home offices.
A Sustainable Choice with Financial Benefits
This model is also eligible for a $350 LogisVert Grant by Hydro-Québec, making it an even more attractive option for eco-conscious homeowners looking to reduce their carbon footprint. The grant not only helps offset the initial installation cost but also emphasizes the unit's efficiency and environmental benefits.
A Commitment to Excellence
At AirGreen, we believe in providing our clients with not just products but solutions that enhance their quality of life. Our team of certified technicians ensures that every installation meets the highest standards of safety and efficiency. We stand by our work with comprehensive warranties and offer ongoing maintenance services to keep your system running smoothly for years to come.

Conclusion: Enhancing Comfort in Rosemont–La Petite-Patrie
The installation of the Gree Livo Gen4 Wall-Mounted Heat Pump in Rosemont–La Petite-Patrie is a testament to AirGreen's dedication to quality and customer satisfaction. This project highlights our ability to blend advanced technology with the unique needs of each client, ensuring that every installation is tailored to provide maximum comfort and efficiency.
Whether you're in Montreal, Laval, Longueuil, the North Shore, or the South Shore, trust AirGreen to deliver top-notch HVAC solutions that combine cutting-edge technology, superior performance, and aesthetic appeal. The Gree Livo Gen4 is not just a heating and cooling system; it's a step towards a more comfortable and sustainable future.
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.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
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.
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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?
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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).
