Installation of a Gree MULTI GEN2 DoubleZone Heat Pump in Côte-des-Neiges-Notre-Dame-de-Grâce
Dive into AirGreen's latest masterpiece in Côte-des-Neiges-Notre-Dame-de-Grâce, Montreal! Uncover the Gree MULTI GEN2's power, efficiency, and the exquisite installation process that guarantees comfort and savings for our delighted!
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen

The article, chapter by chapter
A Symphony of Efficiency and Power: Discover Our Recently Installed HVAC Masterpiece
Dive into the Details: The Gree MULTI GEN2 DoubleZone Heat Pump
AirGreen is proud to present our recent installation in the vibrant neighborhood of Côte-des-Neiges-Notre-Dame-de-Grâce, Montreal. This project features the Gree MULTI GEN2 DoubleZone Heat Pump, a paragon of efficiency and power, meticulously installed to bring unparalleled comfort to our valued client.
Key Features of the MULTI GEN2:
- 36,000 BTU Compressor with Two 18,000 BTU Heads: The heart of this installation is the robust compressor, efficiently powering two powerful 18,000 BTU heads that distribute consistent heat throughout the residence.
- Cutting-Edge Technology: The MULTI GEN2 is a recent addition to the Gree lineup, offering advanced features and eligibility for substantial Hydro-Québec rebates.
- Energy Star Certified: With a SEER efficiency rating of 22.0, this model demonstrates sustainable energy consumption, allowing you to enjoy a comfortable environment without a significant carbon footprint.
- Smart Connectivity: Built-in WiFi enables effortless control and monitoring, offering convenience at your fingertips.
- Quiet Operation: With a sound pressure level of only 63.0 dB(A) for the outdoor unit, the MULTI GEN2 delivers powerful heating without disruptive noise.
Craftsmanship That Speaks Volumes: The Installation Process
Our team approached this medium-difficulty installation with precision and expertise, ensuring the two heads were strategically placed to optimize heat distribution. The process involved navigating through multiple rooms on each floor to position the heads at the center of living spaces. This meticulous planning guarantees balanced temperatures, avoiding overly hot or cold zones that could compromise comfort.
Final Touches:
- Professional Plastering: After installation, our collaboration with skilled plasterers ensured a polished finish, hiding holes and adding drywall where necessary.
- Perfect Painting: The plastering was completed with careful painting, seamlessly integrating the installation into the existing decor and enhancing the space’s aesthetic appeal.
Grants Galore: Save with the MULTI GEN2
The Gree MULTI GEN2 not only brings comfort; it also opens the door to significant savings. With eligibility for a federal rebate ranging from $2,500 to $5,000 and a generous provincial rebate of $3,696, investing in this model is not only a quality choice but also a smart financial decision.
Customer Satisfaction: Our Ultimate Reward
Our client was thrilled with the outcome of this installation, appreciating not only the technical excellence but also the attention to aesthetic details. The professional plastering and painting services provided after installation were the icing on the cake, leaving behind a space as beautiful as it is comfortable.
Why AirGreen? Your Comfort, Our Commitment
At AirGreen, we take pride in delivering HVAC services that stand above the rest in Montreal, Laval, Longueuil, Rive-Nord, and Rive-Sud. Our portfolio, rich with diverse installations, reflects our commitment to quality and customer satisfaction. By choosing AirGreen, you’re not just opting for top-tier HVAC solutions; you’re joining a family that puts your comfort and satisfaction first.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
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).
