Project

Installation of a Gree Extrême Wall-Mounted Heat Pump in Sainte-Julie

We installed a high-performance Gree Extrême 18,000 BTU heat pump in Sainte-Julie, offering year-round comfort and savings. Learn how this unit handles extreme cold and qualifies for government grants!

By AirGreen Climatisation & Chauffage Admin5 min read
Installation of a Gree Extrême Wall-Mounted Heat Pump in Sainte-Julie
Installation of a Gree Extrême Wall-Mounted Heat Pump in Sainte-Julie
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.

Bringing Unmatched Comfort and Efficiency to Sainte-Julie with the Gree Extrême Installation

We recently had the pleasure of completing another top-quality installation in Sainte-Julie, South Shore, where we installed a Gree Extrême 18,000 BTU wall-mounted heat pump. This installation was not only about adding a state-of-the-art HVAC system to the home but also about enhancing comfort, efficiency, and long-term savings for our customer.

Why the Gree Extrême 18,000 BTU Heat Pump Stands Out

The Gree Extrême heat pump isn't just any mini-split; it's a unit that’s specifically designed to handle the extreme temperatures of the Canadian climate. With the ability to provide consistent heating even when the mercury drops to a bone-chilling -30°C, it's truly a game-changer for homes in the Greater Montreal area. This energy-efficient system also boasts a cooling capacity of 18,000 BTU, making it a year-round comfort solution.

A Closer Look at the Installation

Our installation in Sainte-Julie was executed with precision and professionalism, ensuring that every detail was attended to. Here’s a breakdown of what made this installation unique:

  • Model: Gree Extrême
  • Type: Mini Split
  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: -30°C
  • Eligible Grant: The system qualifies for the $1,704 LogisVert Grant by Hydro-Québec, offering significant savings for the homeowner.

The Benefits of the Gree Extrême Installation

1. Superior Heating Performance

One of the standout features of the Gree Extrême heat pump is its ability to provide reliable heating down to -30°C. This means that even during the coldest winter nights in Sainte-Julie, this unit will keep your home cozy and warm without compromising performance.

2. Energy Efficiency and Cost Savings

With an impressive 24.5 SEER (Seasonal Energy Efficiency Ratio), this heat pump is designed to operate efficiently, reducing energy consumption and ultimately lowering your electricity bills. The G10 Inverter technology ensures that the compressor operates at variable speeds, adjusting to the home’s temperature needs and preventing unnecessary energy waste.

3. Eligible for Grants and Rebates

Our customer in Sainte-Julie was thrilled to learn that the Gree Extrême installation qualified for substantial grants:

  • Federal Grant: Up to $2,500 / $5,000
  • Provincial Grant: $1,704 from the LogisVert program

These grants make the investment in a Gree Extrême heat pump even more appealing, as they help offset the initial cost and improve overall savings.

The Technical Side of Our Installation

We pride ourselves on our meticulous attention to detail, ensuring that every installation meets the highest standards. Here's a bit more about the technical aspects of this project:

  • Voltage: 220V
  • Freon Type: R-410A, an environmentally friendly refrigerant
  • Sound Levels: The interior unit operates at a quiet 34 to 51 dB(A), while the exterior unit is measured at 59.0 dB(A), ensuring that your comfort isn't interrupted by noise.
  • Piping Dimensions: 1/4 - 5/8

This attention to detail ensures that the Gree Extrême functions at peak efficiency and seamlessly integrates into the home's existing infrastructure.

User-Friendly Features for Maximum Comfort

The Gree Extrême heat pump comes with numerous features designed to enhance comfort and convenience:

  • Wi-Fi Connectivity: Control the system remotely using your smartphone, whether you’re at home or away.
  • Turbo Mode: Quickly reach your desired temperature with this high-power function.
  • Memory Function: In case of a power outage, the heat pump will automatically restart with the last settings, ensuring uninterrupted comfort.

Why Choose AirGreen for Your HVAC Needs?

At AirGreen, we understand that choosing an HVAC solution is about more than just the machine itself; it's about ensuring that the installation is done correctly and efficiently. We take pride in our workmanship and dedication to providing excellent service, from the moment you contact us to the final check of your new system.

Our Commitment to Quality

  • Certified Technicians: All our technicians are highly trained and experienced, ensuring that every installation is performed to the highest standards.
  • Extended Warranty: We offer a 10-10-10 warranty (10 years on the compressor, parts, and labor), giving our customers peace of mind for years to come.

The Impact on Our Customer’s Home in Sainte-Julie

The homeowner in Sainte-Julie was delighted with the installation, especially the way the compact design of the Gree Extrême allowed it to blend seamlessly into their living space. Not only did the installation improve the home's comfort levels, but it also added value to the property by making it more energy-efficient and environmentally friendly.

The Perfect Climate Solution for Canadian Winters and Summers

By choosing the Gree Extrême 18,000 BTU wall-mounted heat pump, the homeowner now enjoys year-round comfort. This system not only delivers powerful heating during frigid winter months but also provides refreshing, energy-efficient cooling during the summer heatwaves.

Interested in a Similar Installation? Contact AirGreen Today!

If you're looking to upgrade your home's HVAC system, consider the Gree Extrême 18,000 BTU heat pump. With its impressive efficiency, robust heating capabilities, and eligibility for multiple grants, it's the ideal choice for homeowners in Montreal, Laval, Longueuil, North Shore, and South Shore.

Don't wait – let AirGreen help you create the perfect climate in your home, just like we did for our satisfied customer in Sainte-Julie.

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

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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).

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