Installation of a Gree Vireo Gen 3 Wall-Mounted Heat Pump in Rosemont–La Petite-Patrie, Montreal
From a noisy, underperforming machine to a whisper-quiet powerhouse - read how AirGreen transformed one customer's HVAC experience with the Gree Vireo Gen 3!
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.
The Perfect Upgrade: From Old to Gold
The Backstory: A Quest for Comfort
In the heart of Rosemont–La Petite-Patrie, Montreal, a customer approached us with a challenge. He was grappling with an old, underperforming heat pump that had seen better days. The compressor's incessant noise, especially when installed on the balcony, was a constant source of irritation. The 12,000 BTU capacity of his previous machine was proving insufficient, leaving him cold in the winter and uncomfortably warm in the summer. To top it off, the machine's short 5-year warranty had long expired, and the cost of repairs was skyrocketing.
Enter AirGreen. Our mission was clear: to provide a solution that was not just an upgrade, but a transformation.
Why Gree Vireo Gen 3?
-
Power and Efficiency: With a whopping 18,000 BTU cooling capacity, the Gree Vireo Gen 3 is a force to be reckoned with. It promises to deliver warmth even at a chilling -30°C, ensuring our customer would never have to experience another cold winter night.
-
Silent Operation: One of the major pain points of the old machine was its noise. The Gree Vireo Gen 3, with its interior sound pressure level of just 31 / 46dB(A) and an exterior level of 57.0 dB(A), is a whisper in comparison.
-
Extended Warranty: A generous 10-10-10 warranty (Compressor - Parts - Labor) ensures peace of mind for a decade.
-
Eco-Friendly: The machine uses R-410A gas, which is known for its eco-friendly properties.
-
Smart Features: With WiFi included, controlling the machine becomes a breeze. Plus, its Energy Star® certification ensures efficient operation without inflating energy bills.
The Installation Process
Our team, equipped with the best tools and expertise, embarked on the installation process. Given that the difficulty level was simple, the process was smooth and swift. The old machine was carefully removed, making way for the brand-new Gree Vireo Gen 3.
The Icing on the Cake: Provincial Grant
One of the standout features of this model is its eligibility for a Provincial Grant of $570. This grant, offered by Hydro-Québec, is a testament to the machine's efficiency and performance. Our customer was not just getting a top-tier machine but also significant savings.
Dimensions and Technicalities
For those who love the nitty-gritty details:
- Interior Dimensions (L x D x H): 38.63 x 8.75 x 12.25
- Exterior Dimensions (L x D x H): 38 x 15.63 x 27.63
- Efficiency: 23.0 SEER
- Voltage: 220V
- Pipes: 1/4 - 5/8
A Happy Ending
Our customer's reaction post-installation? Pure satisfaction. The Gree Vireo Gen 3 was the perfect answer to all his HVAC woes. With its superior performance, silent operation, and the added bonus of the provincial grant, he knew he had made the right choice. And with AirGreen's professional touch, the installation was seamless.
At AirGreen, we don't just install machines; we upgrade lifestyles. If you're looking for an HVAC solution in Montreal, Laval, Longueuil, North Shore, or South Shore, look no further. Let us craft your perfect HVAC story.
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.
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.
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.
Every house has its constraints. We see them before we install.
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).