Installation of a Gree Extreme Mini Split in Longueuil, South Shore
Tired of avoiding the second floor during hot summers? See how AirGreen's Gree Extreme Mini Split installation in Longueuil changed the game for a two-story home!
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The Perfect Solution for a Two-Story Home in Longueuil
At AirGreen, we pride ourselves on delivering top-notch HVAC services across Montreal, Laval, Longueuil, North Shore, and South Shore. Our recent installation in Longueuil stands as a testament to our commitment to quality and customer satisfaction.
The Backstory: A Two-Story Dilemma
Our client had a pressing issue. While their main floor had a heat pump, it wasn’t quite cutting it. The second floor? Even worse. Summers meant avoiding the upstairs altogether due to the unbearable heat. But with the introduction of the Double Grant by Hydro-Québec, they saw an opportunity. An opportunity to not only make their second floor livable during the hot months but also to enhance the comfort of their entire home.
Why the Gree Extreme Mini Split Was the Perfect Choice
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Cooling and Heating Capacity: With a robust 18,000 BTU cooling capacity, the Gree Extreme ensures optimal temperature regulation. And its ability to provide heating even at -30°C? Simply unparalleled.
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Silent Operation: The Gree Extreme boasts a sound pressure level as low as 34 dB(A) for the interior unit. This means our clients can enjoy a peaceful environment without the constant hum of machinery.
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Efficiency: With an impressive 24.5 SEER efficiency rating and Energy Star® certification, this model promises reduced energy bills.
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Connectivity: The inclusion of WiFi allows homeowners to control their HVAC system remotely, adding a layer of convenience.
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Warranty: A comprehensive 10-year warranty on the compressor, parts, and labor ensures peace of mind for our clients.
The Installation: A Seamless Experience
Choosing the perfect spot for the installation was crucial. The top of the stairs emerged as the ideal location, ensuring efficient airflow to both floors. Our team, with their medium-rated difficulty task, executed the installation flawlessly, ensuring the Gree Extreme Mini Split blended seamlessly with the home's aesthetics.
Grants and Savings: The Icing on the Cake
Our clients were thrilled to learn that their new installation qualified for both federal and provincial grants. With a Federal Grant of $2,500/$5,000 and a Double Grant by Hydro-Québec of $1,704, the savings were substantial.
A Few More Noteworthy Features of the Gree Extreme Mini Split
- Serial Numbers: Interior - GWH18AAE-D3DNA2A/I; Exterior - GWH18YE-D3DNA1A/O
- Dimensions: The interior unit measures 43.34 x 9.81 x 12.88, while the exterior unit comes in at 38.56 x 16.81 x 31.11.
- Gas: The Gree Extreme uses R-410A Freon, ensuring efficient operation.
- Voltage: Operating at 220V, this model is designed for optimal performance.
In Conclusion: Another Satisfied AirGreen Customer
Our Longueuil installation story is just one of many. At AirGreen, we don’t just install HVAC systems; we provide solutions. Solutions that cater to unique needs, ensuring comfort all year round. With the Gree Extreme Mini Split now in place, our clients can look forward to cozy winters and cool summers, all while enjoying significant savings.
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.
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An on-site estimate, the right capacity, the right equipment.
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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).