Installation of a Gree Extreme Mini Split Heat Pump in Lorraine
Experience comfort year-round with the Gree Extreme Heat Pump. See how AirGreen’s professional installation in Lorraine brings efficiency, innovation, and savings to your home’s HVAC system.
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.
When Comfort Meets Innovation: Our Gree Extreme Mini Split Installation
At AirGreen, we take pride in bringing the ultimate comfort to homes across Montréal, Laval, Longueuil, the North Shore, and the South Shore. Recently, we completed an installation of a Gree Extreme 18,000 BTU wall-mounted heat pump in a beautiful residence in Lorraine, showcasing the power of modern HVAC technology. This isn’t just another installation; it's an investment in cutting-edge climate control that delivers maximum comfort even during the harshest of winters.
The Gree Extreme Heat Pump: A Perfect Fit for Lorraine’s Climate
Lorraine, known for its mix of cold winters and warm summers, requires an HVAC system that can perform at the highest level year-round. The Gree Extreme 18,000 BTU Mini Split we installed is equipped to handle everything that Mother Nature throws its way—whether it’s cooling the house in the sweltering heat of July or heating the home in temperatures as low as -30°C.
The Gree Extreme is renowned for its ability to maintain performance in extreme conditions. The 18,000 BTU capacity provides just the right amount of heating and cooling for mid-sized homes, making it the perfect solution for our client’s needs.
Why Choose the Gree Extreme?
With the Gree Extreme, customers get more than just a reliable machine. This unit offers features that set it apart from other models on the market:
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Energy Star® Certified: This means the Gree Extreme is energy efficient, saving homeowners on their monthly Hydro-Québec bills. With an impressive 24.5 SEER, it stands as one of the most efficient units available.
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WiFi Enabled: Control the temperature of your home remotely using the built-in WiFi feature. Whether you're at work or on vacation, you can adjust the climate of your home from your smartphone, ensuring comfort is just a click away.
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Quiet Performance: This heat pump operates at 34/51 dB(A) indoors, which means the unit runs quietly in the background without causing any disruptions to your daily activities.
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Dual-Stage Compressor: Gree's G10 Inverter Technology ensures stable performance with minimal energy consumption. The compressor adjusts its speed based on your home’s needs, saving energy while providing comfort. In fact, the Gree Extreme can operate at 45W, which is unheard of in many traditional models.
The Installation Process: Precision and Expertise
Our installation team in Lorraine took extra care to integrate the heat pump seamlessly into the home’s interior. The unit's sleek design, with dimensions of 43.34 x 9.81 x 12.88 inches for the interior unit and 38.56 x 16.81 x 31.11 inches for the exterior unit, ensures that it blends effortlessly into any modern living space.
Pipes and Cabling were expertly routed, and our technicians ensured that the unit was fully operational, testing every component to ensure it could perform optimally under all conditions. Additionally, we mounted the outdoor compressor on a raised base with a heating element to prevent ice buildup during winter, further guaranteeing the longevity and performance of the unit.
This attention to detail ensures that the Gree Extreme will provide reliable heating and cooling for years to come.
Maximizing Comfort with the Gree Extreme’s Key Features
The Gree Extreme Mini Split isn’t just about maintaining the right temperature—it’s about maximizing comfort for the entire family. Some of the key features of this model include:
Turbo Mode for Instant Comfort
With the Turbo Mode, the Gree Extreme can quickly increase airflow to bring the indoor temperature to your desired setting faster. Whether you need to cool down quickly after a day in the sun or warm up after a chilly winter walk, this feature ensures rapid comfort.
Intelligent Defrosting Technology
Say goodbye to unnecessary defrost cycles that waste energy. The intelligent defrosting mechanism activates only when needed, saving energy and extending the lifespan of the unit. This is particularly important in regions like Lorraine, where winters can be harsh and extended.
I-Feel Technology
The Gree Extreme’s remote control is equipped with a temperature sensor that adjusts the temperature based on your location in the room, ensuring personalized comfort wherever you are. This is perfect for those who want to maintain an optimal temperature without having to manually adjust the unit all the time.
Eligible for Hydro-Québec’s LogisVert Grant
One of the biggest advantages for homeowners installing the Gree Extreme 18,000 BTU heat pump is its eligibility for Hydro-Québec’s LogisVert Grant. Our client in Lorraine is set to benefit from a rebate of $1,704, thanks to this energy-efficient installation. Not only does this installation promise long-term energy savings, but it also delivers immediate financial benefits.
Sustainability Meets Style
The Gree Extreme is also an eco-friendly option, using the R-410A refrigerant, which is less harmful to the environment compared to older refrigerants. This helps our client in Lorraine reduce their carbon footprint while still enjoying the high performance of their new heat pump.
Beyond its environmental benefits, the sleek design of the Gree Extreme also enhances the aesthetic appeal of the home. The unit’s compact dimensions allow it to fit unobtrusively into the space, complementing the modern look of the residence.
Why AirGreen?
Choosing AirGreen for your HVAC installation ensures that you’re not only getting a top-tier product but also unmatched expertise in the field. Our team of certified technicians takes pride in every installation, ensuring that every detail is accounted for—from securing the perfect placement for the heat pump to making sure the unit is working at its peak performance.
Our commitment to quality means we offer a 10-year warranty on parts, labor, and the compressor, ensuring that our clients in Lorraine and beyond can enjoy peace of mind, knowing their investment is protected.
Looking Ahead
The Gree Extreme Mini Split installation in Lorraine is just one example of how we at AirGreen are committed to bringing the best climate control solutions to homes throughout Montréal, Laval, Longueuil, North Shore, and South Shore. We don’t just install heat pumps—we enhance homes with technology that delivers comfort, savings, and sustainability for years to come.
If you’re considering a new HVAC system, give us a call, and let’s find the perfect solution tailored to your home’s needs.
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).