Installation of a Gree Extreme 9,000 BTU Mini Split in Saint-Laurent, Montréal
Looking for a reliable heat pump? See how our installation of the Gree Extreme 9,000 BTU mini split in Saint-Laurent delivers both comfort and savings, even in -30°C!
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.
A Seamless Blend of Efficiency and Innovation for Montreal Winters
At AirGreen, we pride ourselves on delivering top-tier HVAC solutions that go beyond expectations. Our recent installation of a Gree Extreme 9,000 BTU Mini Split in Saint-Laurent, Montréal, is a shining example of how technology meets functionality, tailored for the harsh Canadian climate. This sleek unit, part of Gree's cutting-edge line, is not just another mini split—it’s a perfect match for both modern homes and the demanding winters we face in Montréal.
Why Choose the Gree Extreme?
The Gree Extreme Ultra Heat 9,000 BTU model is designed to handle extreme cold, making it a top choice for customers across Greater Montreal. This unit doesn’t just perform well—it excels, maintaining its heating capabilities down to -30°C, a feature few systems can match. The powerful combination of energy efficiency, high performance, and sleek design makes it a standout option for homeowners looking to stay warm in the winter and cool in the summer.
Features at a Glance:
- Cooling Capacity: 9,000 BTU
- Heating Capacity: Works efficiently down to -30°C
- Sound Pressure Levels: Ultra-quiet operation at just 19 dB(A) indoors and 53 dB(A) outdoors
- Energy Efficiency: A remarkable 38.0 SEER rating, making it eligible for various government grants
- Warranty: Full 10-year coverage on parts, compressor, and labor—setting a new standard in the industry.
The Installation Process: Tailored Precision for Every Home
The installation process was carried out in a Saint-Laurent residence, where space and aesthetic integration were essential. We mounted the outdoor compressor unit securely on the exterior wall using durable brackets. Special care was taken to ensure that the piping was neatly concealed, blending seamlessly with the home’s exterior, and the electrical wiring was routed for both functionality and appearance.
This model’s compact dimensions made it easy to install without compromising on power or efficiency. The indoor unit measured just 38.19 x 8.86 x 11.81 inches, ensuring it fits into any room without overwhelming the space. The exterior unit, measuring 35.38 x 14.88 x 23.5 inches, was equally compact, ensuring that it did not detract from the overall look of the home.
A Grant-Eligible Mini Split: Save More with LogisVert
One of the most exciting aspects of this installation is the $400 LogisVert Grant offered by Hydro-Québec, which makes the Gree Extreme not only a superior technical choice but a financially savvy one as well. This unit is also Energy Star® certified, making it eligible for additional federal and provincial grants, bringing the total savings up to $5,600. These grants are available across the Greater Montreal area, including Laval, Longueuil, the North Shore, and the South Shore.
Gree’s Unique Technology: Built for Comfort, Designed for Savings
Intelligent Defrosting for Maximum Efficiency
One of the standout features of the Gree Extreme is its intelligent compressor defrosting system. This technology ensures that the compressor only defrosts when necessary, which not only saves energy but also extends the life of the unit. This is particularly important during Montréal’s brutal winters, where efficiency can make a big difference in your monthly heating bills.
G10 Inverter Technology: Efficiency at its Finest
At the heart of the Gree Extreme 9,000 BTU Mini Split is the innovative G10 Inverter Technology, which allows the unit to maintain the desired temperature with minimal fluctuations, reducing energy consumption significantly. This means fewer starts and stops for the compressor, translating to longer equipment life and less wear and tear on the system. This inverter technology is especially valuable for homes in colder climates like Montreal, as it ensures that the unit maintains efficiency even when temperatures plummet.
Wi-Fi Control for Modern Living
With Wi-Fi capability included, this Gree Extreme model offers homeowners complete control over their heating and cooling systems from anywhere in the world. Whether you're at home or on the go, you can adjust the settings through the Gree+ app to ensure that your home is always at the perfect temperature. This feature not only adds convenience but also helps you save on energy costs by allowing you to manage your HVAC system more efficiently.
Performance Beyond the Numbers: Real-World Comfort
The Gree Extreme 9,000 BTU Mini Split doesn’t just perform on paper—it delivers real-world comfort. For the homeowners in Saint-Laurent, this installation provided immediate results. Thanks to the turbo mode, the house reached the desired temperature in record time, ensuring that the family stayed warm despite the cold weather setting in. The four-direction motorized louvers also played a significant role in maximizing comfort, distributing air evenly throughout the room, both horizontally and vertically.
Customer Satisfaction: Our Priority
Our team at AirGreen always ensures that every installation is carried out to the highest standards, and this project was no exception. From the initial consultation to the final installation, we worked closely with the homeowners to ensure that the system met all of their heating and cooling needs. We pride ourselves on offering superior service, and this installation is just one example of our commitment to quality and customer satisfaction.
Why AirGreen? The Trusted HVAC Provider in Montreal
Choosing AirGreen means choosing excellence. We have a proven track record of delivering top-quality installations throughout the Montreal, Laval, Longueuil, North Shore, and South Shore regions. Our expertise, combined with our commitment to using only the best equipment, such as the Gree Extreme Ultra Heat series, ensures that our customers receive unparalleled service and lasting comfort.
With government grants, 10-year warranties on all parts, compressors, and labor, and industry-leading technology, the Gree Extreme is the smart choice for homeowners looking to make a long-term investment in their home’s comfort. And with AirGreen as your trusted installer, you can rest easy knowing that your HVAC system is in the best hands.
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).