Project

Installation of a Gree Vireo GEN3 Wall-Mounted Heat Pump in Saint-Constant

Dive into the story of how AirGreen seamlessly integrated a Gree Vireo GEN3 heat pump into a Saint-Constant home, ensuring comfort without compromising style.

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Gree Vireo GEN3 Wall-Mounted Heat Pump in Saint-Constant
Installation of a Gree Vireo GEN3 Wall-Mounted Heat Pump in Saint-Constant
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 Masterpiece of Precision and Discretion

Unveiling the Challenge

In the charming town of Saint-Constant, our latest project posed a unique set of challenges that tested our ingenuity and craftsmanship. Tasked with installing a Gree Vireo GEN3 wall-mounted heat pump, we embarked on a journey to not only meet but exceed our client's expectations. This installation was not just about providing comfort but ensuring the aesthetic integrity of the home was preserved. The client's request? A discrete, efficient, and innovative solution that pushes the boundaries of traditional HVAC installations.

The Heart of Innovation: Gree Vireo GEN3

Before delving into the intricacies of the installation process, let's spotlight the star of the show: the Gree Vireo GEN3 heat pump. This machine is a marvel in the HVAC world, boasting features that set it apart:

  • Energy Star® certification, promising unparalleled efficiency.
  • WiFi capability, allowing for effortless control and monitoring.
  • Silent operation, with an interior sound pressure level of only 27/43dB(A), ensuring peace and quiet.
  • Exceptional heating capacity down to -30°C, providing comfort even in the harshest of winters.
  • 25.0 SEER efficiency, making it one of the most energy-efficient models on the market.
  • Compatibility with the LogisVert grant by Hydro-Québec, offering financial incentives for eco-friendly choices.

Navigating the Maze: The Installation Process

The heart of this project lay in the precise and discreet routing of pipes and wires—a task that demanded creativity and meticulous planning. Our customer's vision was clear: the unit had to blend seamlessly into the architecture of the home, with no visible pipes or wires to mar the interior design. The chosen location, a hallway intended to distribute airflow evenly throughout the home, presented a significant challenge: there was no direct access to an external wall.

Our solution? A sophisticated route through the wall, weaving through a closet, and emerging into the backyard. This innovative path not only preserved the aesthetic appeal of the home but also exemplified our commitment to custom-tailored solutions. Each step, from drilling through walls to ensuring the structural integrity of the closet, was executed with precision and care, ensuring a spotless result that left our client thoroughly impressed.

Beyond Installation: A Commitment to Satisfaction

The successful installation of the Gree Vireo GEN3 in Saint-Constant stands as a testament to AirGreen's dedication to excellence. But our commitment doesn't end with installation. We ensure:

  • A comprehensive 10-year warranty on compressor and parts, with an optional extended warranty, promising peace of mind.
  • Energy efficiency that translates into significant savings on energy bills, especially with the inclusion of a $350 provincial grant.
  • Expert guidance on maximizing the benefits of the heat pump, from utilizing its WiFi capabilities to understanding its environmental impact.

Why Choose AirGreen?

Our approach to HVAC installation transcends the mere mechanical aspects. We imbue each project with a sense of purpose and personalization, understanding that every home and client has unique needs. The installation in Saint-Constant exemplifies our ethos:

  • Customization: Tailoring solutions to fit the unique specifications and aesthetic desires of our clients.
  • Innovation: Leveraging the latest technologies and creative problem-solving to overcome installation challenges.
  • Sustainability: Prioritizing energy-efficient options that benefit both our clients and the planet.
  • Customer Satisfaction: Ensuring happiness and comfort through meticulous planning, execution, and follow-up.

The AirGreen Advantage

Choosing AirGreen means entrusting your comfort to experts who see beyond the technicalities to the heart of what makes a home comfortable and inviting. Our installations are more than just projects; they're commitments to enhancing the quality of life for our clients through innovative, efficient, and discreet HVAC solutions.

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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