Installation of a Gree Vireo GEN3 Mini Split Air Conditioner in Delson, South Shore
Experience the silent, seamless installation of the Gree Vireo GEN3 Mini Split Air Conditioner in Delson—where comfort meets sophistication.

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.
Efficient Comfort Delivered: The Quiet Power of Gree Vireo GEN3
When it comes to enhancing the comfort of your home with precision temperature control and whisper-quiet operation, not all HVAC solutions are created equal. Our recent installation in Delson, South Shore, showcases the remarkable capabilities of the Gree Vireo GEN3 Mini Split Air Conditioner. This project not only elevated the comfort levels in a specific room of our client's house but also exemplified our commitment to seamless, efficient service that integrates the latest in HVAC technology.
Project Overview: Tailored Comfort in Delson
The installation was carried out in a residential home that required additional heating and cooling in one particular room—an area that had specific demands due to its unique use and orientation. The homeowner sought a solution that was not only efficient and effective but also economical and unobtrusive. The Gree Vireo GEN3, with its 9,000 BTU capacity and advanced features, stood out as the ideal choice.
Choosing the Gree Vireo GEN3: A Study in Efficiency and Quiet Operation
The Vireo GEN3 is renowned for its Energy Star® certification, which is a testament to its energy efficiency, making it a wise choice for environmentally conscious consumers. With a remarkable 25.3 SEER efficiency rating, this model promises significant savings on energy bills. Furthermore, its low sound pressure levels—25 dB(A) indoors—are so quiet that they're barely noticeable, ensuring that comfort does not come at the cost of peace.
Key Features of the Gree Vireo GEN3
- Smart Home Compatibility: Integrates seamlessly with home WiFi systems for easy control.
- Ultra-Heat Capability: Provides heating capacities down to -30°C, ensuring warm comfort even in the harshest winters.
- Multiple Fan Speeds and Modes: Includes 7 fan speeds and a Turbo Mode for when quick temperature adjustments are needed.
- Innovative Design Features: Features like the Smart defrost system, low voltage start, and optimized airflow demonstrate the thoughtful engineering behind this model.
The Installation: Seamless Integration and Aesthetic Consideration
Our approach to installation is what sets AirGreen apart. For this project in Delson, all components were strategically placed to ensure that the visual and physical impact on the existing room was minimal. The indoor unit was installed with all pipes and electrical connections hidden behind it, ensuring that no invasive renovations were needed post-installation. This not only preserved the aesthetic integrity of the room but also meant that our client could enjoy the new system immediately without further disruptions.
Customer Satisfaction: Beyond Cooling and Heating
The feedback from our client was overwhelmingly positive. They were particularly impressed by how the installation was handled—neatly and with respect to their living space. The Gree Vireo GEN3’s performance in terms of both cooling and heating efficiency, as well as its silent operation, were exactly what they needed. The added benefit of being eligible for a $350 provincial grant through the LogisVert Program by Hydro-Québec made this investment even more valuable.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we understand that installing a new HVAC system is not just about the hardware. It's about understanding the unique needs of each space and providing a solution that fits seamlessly into your life. Our team of certified professionals ensures that every installation is handled with expertise, care, and a deep understanding of both the technology and our clients' expectations.
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).
