Project

Installation of a Gree Vireo GEN3 Ductless Heat Pump in Montréal-Est

When Montréal-Est required a silent yet powerful HVAC solution, AirGreen's installation of the Gree Vireo GEN3 ductless heat pump became a story of perfect match and satisfaction.

By AirGreen Climatisation & Chauffage Admin4 min read
Installation of a Gree Vireo GEN3 Ductless Heat Pump in Montréal-Est
Installation of a Gree Vireo GEN3 Ductless Heat Pump in Montréal-Est
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.

The Tale of a Perfect Match: Our Latest HVAC Triumph

Introduction to a Unique HVAC Solution

In the vibrant heart of Montréal-Est, our team at AirGreen embarked on an HVAC installation journey that not only challenged our expertise but also highlighted our commitment to providing top-tier comfort solutions. Our mission was to replace an old heating and cooling system with something revolutionary, yet familiar - a task that led us to the Gree Vireo GEN3 ductless heat pump. This story isn't just about installing an HVAC system; it's about understanding the needs, the meticulous selection process, and the joy of delivering beyond expectations.

Understanding the Client's Unique Needs

Our client's request was straightforward but demanding: replace the old machine without altering the existing infrastructure. No changes to pipes or electrical wires, just a seamless transition to enhanced comfort. This requirement called for a product not just any product, but one that mirrored the physical and operational specifications of the old system, yet with modern efficiency and quiet operation.

Why Gree Vireo GEN3 Was the Perfect Fit

After thorough research and consideration, the Gree Vireo GEN3 stood out as the unparalleled choice for several reasons:

  • Compatibility: Its 1/4 - 3/8 pipes matched the existing setup flawlessly, eliminating the need for invasive modifications.
  • Quiet Operation: Boasting an interior sound pressure level of just 25/40 dB(A), the Vireo GEN3 promised a disturbance-free environment, whether it's a tranquil night's sleep or a focused work-from-home day.
  • Efficiency: With an impressive 25.3 SEER rating, this machine isn't just about comfort; it's a testament to our commitment to energy-saving and sustainability, underscored by its Energy Star® certification.
  • Grant Eligibility: The fact that this model is admissible for a LogisVert Grant by Hydro-Québec and a Provincial Grant of $350 made it an economically advantageous choice for our client.
  • Warranty: The 10-year warranty on all fronts - compressor, parts, and labor (with an option for extended warranty) - provided peace of mind and assurance of long-term reliability.

The Installation Process: A Seamless Operation

Our installation process was a textbook example of efficiency and professionalism. Given the simple difficulty level, our expert technicians were able to swiftly replace the old system with the new Gree Vireo GEN3, without any hitches. The client's desire to retain the original pipes and electrical wires was respected and fulfilled to the letter, showcasing our adaptability and respect for customer preferences.

Client Satisfaction: Our Ultimate Reward

The aftermath of the installation was nothing short of exhilarating. The customer's reaction to the silent yet powerful operation of the Gree Vireo GEN3, coupled with the aesthetic and functional upgrade it represented, was overwhelmingly positive. The joy of finding the perfect match for their needs and the additional benefits of grant eligibility and an extended warranty made this installation a memorable success for both the client and our team.

Why Choose AirGreen for Your HVAC Needs?

This installation story serves as a testament to our dedication to customer satisfaction, technical prowess, and environmental responsibility. Here at AirGreen, we're not just about selling HVAC systems; we're about crafting personalized comfort solutions that stand the test of time. Our expertise spans across Montreal, Laval, Longueuil, North Shore, and South Shore, ensuring that quality heating and cooling services are just a call away.

Conclusion: Beyond Installation

Choosing the right HVAC system and installer can be daunting, but stories like these illuminate the path to making informed decisions. The Gree Vireo GEN3 ductless heat pump installation in Montréal-Est is a shining example of AirGreen's commitment to excellence. Our journey with each client doesn't end at installation; it's a lifelong partnership in comfort and satisfaction.

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

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

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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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