Project

Installation of a Gree Extreme Wall-Mounted Mini Split in Ahuntsic-Cartierville, Montreal

Transforming challenges into opportunities, AirGreen delivers a seamless HVAC installation in Ahuntsic-Cartierville. Dive in to see how we made a house feel more like home!

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Gree Extreme Wall-Mounted Mini Split in Ahuntsic-Cartierville, Montreal
Installation of a Gree Extreme Wall-Mounted Mini Split in Ahuntsic-Cartierville, Montreal
Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

A Seamless Integration into Your Living Space

At AirGreen, we pride ourselves on not just installing HVAC systems, but integrating them seamlessly into your homes. Our recent project in Ahuntsic-Cartierville, Montreal, stands as a testament to our commitment to excellence and our dedication to customer satisfaction.

The Challenge

Every home is unique, and so are its HVAC needs. For this particular installation, our challenge was to ensure that the entire floor received an even distribution of cooling and heating. The ideal spot for the machine was the center of the living room. However, the architectural constraints of the house meant that we couldn't run the pipes and wires through the walls or ceiling.

The Solution

Rather than seeing this as a setback, we viewed it as an opportunity to showcase our expertise. Collaborating with a professional plasterer, we meticulously planned the route for the pipes through one room, ensuring they were concealed perfectly. Once the pipes and wires were in place, the plasterer worked his magic, hiding them and repainting the area to match the rest of the interior. The result? A Gree Extreme Wall-Mounted Mini Split that looked like it had always been a part of the home.

Why the Gree Extreme Wall-Mounted Mini Split?

  • Cooling and Heating Capacity: With a cooling capacity of 18,000 BTU and the ability to provide heating even at -30°C, this machine is built for performance.

  • Energy Efficiency: Boasting an impressive 24.5 SEER efficiency rating and an Energy Star® certification, this model is both powerful and eco-friendly.

  • Smart Features: With built-in WiFi, controlling your HVAC system has never been easier. Whether you're at home or on the go, optimal comfort is just a click away.

  • Peace of Mind: The Gree Extreme comes with a 10-10-10 warranty on the compressor, parts, and labor. Additionally, an extended warranty is included, ensuring that your investment is protected for years to come.

  • Quiet Operation: With sound pressure levels of 59.0 dB(A) for the exterior and 34/51 dB(A) for the interior, this machine operates whisper-quiet, ensuring no disturbances.

Grants and Savings

One of the standout features of the Gree Extreme is its eligibility for both federal and provincial grants. Customers can avail of a federal grant ranging from $2,500 to $5,000 and a provincial grant of $1,704. These grants, combined with the energy savings from the machine's high efficiency, make the Gree Extreme a cost-effective choice for homeowners.

A Turnkey Experience

Our customer in Ahuntsic-Cartierville was ecstatic with the outcome. Not only did they get a top-of-the-line HVAC system, but they also received a turnkey installation experience. From the initial planning to the final touches, we handled everything, ensuring that the customer had nothing to worry about.

Why Choose AirGreen?

Our recent installation in Ahuntsic-Cartierville is just one example of our dedication to excellence. Whether it's a simple installation or a complex project, we approach every job with the same level of commitment and professionalism. Our goal is to ensure that every customer is 100% satisfied with our services.

In Conclusion

At AirGreen, we don't just install HVAC systems; we integrate them into your homes, ensuring that they complement your interiors and provide optimal comfort. If you're looking for an HVAC company that goes the extra mile, look no further than AirGreen.

The steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

    Useful pages for what comes next

    Could this job help a neighbour?

    Share
    Similar projects

    More jobs to see, near you

    By town, by equipment or by region: browse more than 4,700 published projects.

    Each dot: a town where AirGreen has published projects. The glowing dot: this job.

    All our projects

    Your project

    Tell us about your house. We come and see it for free.

    The on-site estimate is free and the quote follows within 24 hours.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
    • EstimateOn site, free
    • QuoteWithin 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).

    Leave a comment