Installation of a Gree Vireo GEN3 Ductless Heat Pump in Montréal-Est
When Montréal-Est required a silent yet powerful HVAC solution, AirGreen's installation of the Gree Vireo GEN3 ductless heat pump became a story of perfect match and satisfaction.

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 Tale of a Perfect Match: Our Latest HVAC Triumph
Introduction to a Unique HVAC Solution
In the vibrant heart of Montréal-Est, our team at AirGreen embarked on an HVAC installation journey that not only challenged our expertise but also highlighted our commitment to providing top-tier comfort solutions. Our mission was to replace an old heating and cooling system with something revolutionary, yet familiar - a task that led us to the Gree Vireo GEN3 ductless heat pump. This story isn't just about installing an HVAC system; it's about understanding the needs, the meticulous selection process, and the joy of delivering beyond expectations.
Understanding the Client's Unique Needs
Our client's request was straightforward but demanding: replace the old machine without altering the existing infrastructure. No changes to pipes or electrical wires, just a seamless transition to enhanced comfort. This requirement called for a product not just any product, but one that mirrored the physical and operational specifications of the old system, yet with modern efficiency and quiet operation.
Why Gree Vireo GEN3 Was the Perfect Fit
After thorough research and consideration, the Gree Vireo GEN3 stood out as the unparalleled choice for several reasons:
- Compatibility: Its 1/4 - 3/8 pipes matched the existing setup flawlessly, eliminating the need for invasive modifications.
- Quiet Operation: Boasting an interior sound pressure level of just 25/40 dB(A), the Vireo GEN3 promised a disturbance-free environment, whether it's a tranquil night's sleep or a focused work-from-home day.
- Efficiency: With an impressive 25.3 SEER rating, this machine isn't just about comfort; it's a testament to our commitment to energy-saving and sustainability, underscored by its Energy Star® certification.
- Grant Eligibility: The fact that this model is admissible for a LogisVert Grant by Hydro-Québec and a Provincial Grant of $350 made it an economically advantageous choice for our client.
- Warranty: The 10-year warranty on all fronts - compressor, parts, and labor (with an option for extended warranty) - provided peace of mind and assurance of long-term reliability.
The Installation Process: A Seamless Operation
Our installation process was a textbook example of efficiency and professionalism. Given the simple difficulty level, our expert technicians were able to swiftly replace the old system with the new Gree Vireo GEN3, without any hitches. The client's desire to retain the original pipes and electrical wires was respected and fulfilled to the letter, showcasing our adaptability and respect for customer preferences.
Client Satisfaction: Our Ultimate Reward
The aftermath of the installation was nothing short of exhilarating. The customer's reaction to the silent yet powerful operation of the Gree Vireo GEN3, coupled with the aesthetic and functional upgrade it represented, was overwhelmingly positive. The joy of finding the perfect match for their needs and the additional benefits of grant eligibility and an extended warranty made this installation a memorable success for both the client and our team.
Why Choose AirGreen for Your HVAC Needs?
This installation story serves as a testament to our dedication to customer satisfaction, technical prowess, and environmental responsibility. Here at AirGreen, we're not just about selling HVAC systems; we're about crafting personalized comfort solutions that stand the test of time. Our expertise spans across Montreal, Laval, Longueuil, North Shore, and South Shore, ensuring that quality heating and cooling services are just a call away.
Conclusion: Beyond Installation
Choosing the right HVAC system and installer can be daunting, but stories like these illuminate the path to making informed decisions. The Gree Vireo GEN3 ductless heat pump installation in Montréal-Est is a shining example of AirGreen's commitment to excellence. Our journey with each client doesn't end at installation; it's a lifelong partnership in comfort and satisfaction.
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.
Which type of equipment for your project?
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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).
