Installation of a Gree Crossover Mini Split in Pierrefonds
Discover our latest Gree Crossover Mini Split installation in Pierrefonds—offering 12,000 BTU of comfort, even at -30°C! Perfect for Montreal’s climate. Get your $385 Logisvert Grant today!
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Experience the Comfort of Gree's Crossover Mini Split in Pierrefonds
We recently completed the installation of a Gree Crossover 12,000 BTU Mini Split at a beautiful residential property in Pierrefonds, offering an enhanced level of indoor comfort for our client. This latest addition to our portfolio not only demonstrates our commitment to top-tier HVAC solutions but also reflects the customer’s desire for efficient, year-round comfort. The installation was specifically designed to deliver both cooling and heating at extreme temperatures, making it ideal for the Canadian climate.
Why Choose the Gree Crossover 12,000 BTU Mini Split?
The Gree Crossover series stands out due to its versatility, energy efficiency, and reliability. This model is engineered to offer 12,000 BTU of cooling capacity while maintaining optimal performance even when outside temperatures plummet to -30°C. Such features make it a prime choice for homeowners in Greater Montreal who face harsh winters and sweltering summers. Here's why the Crossover is an excellent choice for anyone considering a mini split system:
- G10 Inverter Technology: This proprietary technology by Gree ensures that the compressor operates efficiently, reducing energy consumption and maintaining consistent indoor temperatures.
- WiFi-Enabled Control: The built-in WiFi feature allows users to manage the system remotely using the GREE+ app, providing convenience at your fingertips.
- High SEER Rating: The Crossover boasts an impressive 25.0 SEER, ensuring maximum energy savings throughout the year.
- Eco-Friendly Refrigerant: The unit utilizes R-410A refrigerant, which is more environmentally responsible compared to older refrigerants, aligning with sustainable practices.

A Smooth and Efficient Installation Process
Our skilled technicians executed the installation with precision and attention to detail. The exterior unit was carefully mounted on a reinforced bracket, ensuring stability and proper drainage to prevent water accumulation. We also ensured that the interior unit was strategically placed to maximize airflow and coverage within the room.
Installation Details
- Location: Pierrefonds, Greater Montreal
- Model: Gree Crossover
- Type: Wall-mounted mini split
- Cooling Capacity: 12,000 BTU
- Heating Capacity: Effective down to -30°C
- Energy Star Certified: Yes
- Noise Levels: 27-43 dB(A) (interior), 52 dB(A) (exterior)
- Warranty: 10 years on compressor, parts, and labor
- Grant: Eligible for the Logisvert Grant by Hydro-Québec ($385)
Unique Features of the Installation
The customer’s primary goal was to have a reliable, energy-efficient heating and cooling solution that could tackle extreme temperatures. With this in mind, we recommended the Gree Crossover, which not only met their requirements but also offered modern features like WiFi connectivity and precise airflow control. This installation was particularly interesting because it involved fitting the unit in a compact space without compromising on performance or aesthetics.
Adapting to the Client’s Needs
Our client, a resident of Pierrefonds, had specific requirements for the installation. The interior unit had to blend seamlessly into the room’s design, and the exterior unit needed to be positioned to minimize noise while ensuring optimal performance. Our team took the following steps to address these needs:
- Custom Placement: The interior unit was placed at an optimal height to ensure even air distribution across the room.
- Sound Minimization: By using vibration-dampening materials, we ensured that the unit operates quietly, enhancing comfort without disturbances.
- Efficient Piping: The installation included 1/4-1/2 inch piping, neatly integrated to preserve the home’s aesthetics while ensuring effective operation.
Enhanced Comfort All Year Round
The Gree Crossover is designed for all-season comfort, making it the ideal choice for Montreal's climate. Here’s what makes this installation special:
- Heating at -30°C: Unlike many mini splits that struggle in cold weather, the Crossover continues to provide warmth even in frigid conditions.
- Smart Preheating: This feature ensures that the unit preheats the coil before activating the fan, preventing the circulation of cold air at the start of the heating cycle.
- Dehumidification Mode: In addition to cooling and heating, the system also has a dehumidification mode, which helps to maintain indoor air quality during humid summer months.

Eligible for Grants and Rebates
The Gree Crossover installation qualifies for the Logisvert Grant by Hydro-Québec, providing a $385 rebate to homeowners who invest in energy-efficient solutions. This grant not only makes it more affordable but also promotes environmentally responsible choices.
Technical Specifications
Interior Unit
- Model: GWH12AGCXD-D3DNA2A/I
- Dimensions: 32.5 x 7.69 x 11.5 inches
- Voltage: 220V
- Refrigerant Type: R-410A
- Sound Pressure Level: 27-43 dB(A)
Exterior Unit
- Model: GWH12AGCXD-D3DNA1A/O
- Dimensions: 35.38 x 14.88 x 23.5 inches
- Sound Pressure Level: 52 dB(A)
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we are committed to providing the best HVAC solutions tailored to the unique needs of our clients. With years of experience in installations across Montreal, Laval, Longueuil, South Shore, and North Shore, we take pride in delivering quality work that enhances indoor comfort.
- Professional Expertise: Our team of certified technicians ensures that each installation is carried out to the highest standards.
- Customer Satisfaction: We focus on meeting the specific requirements of each customer, ensuring personalized service.
- Comprehensive Solutions: From selecting the right unit to the final installation, we offer end-to-end HVAC solutions that guarantee comfort and efficiency.
Contact Us Today!
If you’re looking for a reliable HVAC installation in Pierrefonds or anywhere in Greater Montreal, AirGreen is your go-to expert. Our solutions not only bring comfort to your home but also align with energy-efficient practices that benefit the environment. Get in touch with us today to learn more about the Gree Crossover Mini Split or other HVAC options we offer.
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.
The on-site estimate is free and the quote follows within 24 hours.
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).

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Combien ? Avant et après l’installation environ svp
Combien ? Avant et après l’installation environ svp