Installation of a Gree Multi GEN2 DoubleZone Heat Pump in Villeray–Saint-Michel–Parc-Extension
Explore our recent installation of a Gree Multi GEN2 Heat Pump in Villeray–Saint-Michel–Parc-Extension. Learn how this advanced system enhances comfort and efficiency.
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.
Innovative HVAC Solution for Optimal Comfort
At AirGreen, we take immense pride in providing top-notch HVAC solutions to our clients across Montreal, Laval, Longueuil, the North Shore, and the South Shore. One of our latest installations features the Gree Multi GEN2 DoubleZone Heat Pump in the vibrant neighborhood of Villeray–Saint-Michel–Parc-Extension. This advanced heat pump system is designed to deliver exceptional comfort and energy efficiency, making it a perfect choice for residential and commercial spaces.
Installation Overview
In this project, our skilled technicians installed a 36,000 BTU Gree Multi GEN2 compressor on the roof, accompanied by two indoor units, each with a capacity of 18,000 BTU. The Gree Multi GEN2 is renowned for its innovative G10 inverter technology, which ensures precise temperature control, reduced power consumption, and minimal noise. This system is Energy Star® certified and comes with a comprehensive 12-year warranty for both the compressor and parts.
Location and Setup
The installation took place in the dynamic area of Villeray–Saint-Michel–Parc-Extension, a neighborhood known for its vibrant community and diverse architectural styles. The rooftop setup was chosen to optimize space and ensure efficient cooling and heating throughout the property. Our team meticulously positioned the outdoor unit to minimize visual impact while maximizing performance.
Key Features of the Gree Multi GEN2
- Cooling Capacity: 36,000 BTU
- Heating Capacity: Effective up to -30°C
- Number of Zones: Supports up to 5 zones, with 2 zones installed in this project
- Dimensions (Exterior): 42.81 x 17.31 x 43.44 inches
- Sound Pressure Level: 63.0 dB(A)
- Refrigerant Type: R-410A
- WiFi Capability: Included for remote control
- Efficiency: 22.0 SEER
- Voltage: 220V
Customer Benefits
Energy Efficiency and Cost Savings
The Gree Multi GEN2 heat pump is designed with high efficiency in mind. With a SEER rating of 22.0, this system significantly reduces energy consumption, leading to lower electricity bills. The LogisVert Grant from Hydro-Québec further enhances its appeal, providing customers with a rebate of $3696.
Quiet Operation
One of the standout features of the Gree Multi GEN2 is its quiet operation. The outdoor unit operates at a sound pressure level of just 63.0 dB(A), ensuring minimal noise disruption. This makes it an ideal choice for both residential and commercial settings where maintaining a peaceful environment is crucial.
Advanced Technology for Optimal Performance
The G10 inverter technology embedded in the Gree Multi GEN2 promotes ultra-precise temperature control and reduced power consumption. This technology adapts the compressor speed to the current cooling or heating demand, providing consistent comfort while using less energy.
Smart Features
- Self-Diagnosis: This feature enables the heat pump to self-diagnose issues, ensuring optimal performance and reducing maintenance costs.
- Intelligent Defrost: This function minimizes energy loss by only defrosting when necessary, rather than on a fixed schedule.
- Automatic Voltage Adaptation: Ensures stable operation even during voltage fluctuations.
- WiFi Capability: Allows users to control their comfort settings remotely via a smartphone or tablet.
Installation Challenges and Solutions
Installing a heat pump on a rooftop in Villeray–Saint-Michel–Parc-Extension presented unique challenges. The property’s architecture required careful planning to position the outdoor unit securely without compromising the building’s aesthetics. Our team expertly navigated these challenges, ensuring the installation was both functional and visually pleasing.
Customer Satisfaction
The homeowners were thrilled with the installation, noting the immediate improvement in indoor comfort and the significant reduction in their energy bills. The Gree Multi GEN2’s sleek design and advanced features met all their expectations, making it a valuable addition to their property.
Conclusion
At AirGreen, we are committed to delivering exceptional HVAC solutions tailored to our clients’ needs. The installation of the Gree Multi GEN2 DoubleZone Heat Pump in Villeray–Saint-Michel–Parc-Extension is a testament to our dedication to quality and customer satisfaction. This project not only enhanced the property’s comfort but also demonstrated the energy efficiency and advanced technology of the Gree Multi GEN2.
For all your HVAC needs, trust AirGreen to provide innovative solutions that ensure optimal comfort and efficiency. Contact us today to learn more about our services and how we can help you achieve a comfortable and energy-efficient home or business.
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?
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).