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Conduit gainable invisible, confort palpable : l’expérience d’un client de Montréal
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Invisible Ducted System, Tangible Comfort: A Client’s Experience in Montréal

Thermal comfort without compromise, even in the most demanding spaces

In a peaceful residential neighbourhood in Montréal, a client wanted to optimize the energy efficiency and comfort of their home while preserving the interior design. The solution offered by AirGreen: a custom ducted HVAC installation, virtually invisible to the eye but incredibly effective. Thanks to our expertise, we completed the integration of a discreet ducted system that combines performance, silence, and a sleek look. Here’s a closer look at this high-precision installation.

Why choose a ducted system? Invisible comfort, always present

Ducted systems are among the most refined and efficient solutions for residential heating and cooling. Unlike visible wall-mounted units, the ducted system is hidden within ceilings or drop ceilings, revealing only small ventilation grilles that blend seamlessly into the décor.

Main advantages:

  • Clean aesthetic: no visible wall-mounted equipment, just subtle vents

  • Even temperature distribution across all rooms

  • Impressively quiet operation

  • Centralized or zoned control, depending on each occupant’s needs

  • Excellent energy performance, especially with models compatible with modern refrigerants like R-32 or R-410A

The challenge: integrate a complete system without altering the interior architecture

For this project located in the Ahuntsic-Cartierville district, the client had traditional plaster ceilings with no existing drop ceiling. The goal was to maintain the original architectural character, while bringing modern thermal comfort.

Our team conducted a thorough technical analysis, including:

  • Structural assessment of the ceiling and load-bearing walls

  • Room-by-room heat loss calculation

  • Planning duct routes through attics and lateral walls

Thanks to meticulous planning, we proposed a layout with ultra-discreet linear diffusers, perfectly integrated into the existing moldings and ceilings.

The installed machine: performance, discretion, efficiency

For this installation, we selected a Gree Flexx central ducted heat pump – a high-efficiency inverter model with capacity tailored to the specific needs of the building.

Technical specifications of the installed system:

  • Brand: Gree

  • Model: Flexx High Static Duct

  • Capacity: 36,000 BTU

  • Refrigerant: R-410A (environmentally compliant)

  • SEER: 17

  • HSPF: 10.5

  • Grant eligibility: eligible for Hydro-Québec’s LogisVert program (up to $4,100 in grants)

This system delivers optimal heating even at -30°C, a critical feature for the harsh Montréal climate.

Technical installation: total discretion, complete mastery

Our certified technicians carried out:

  1. Minimal ceiling cutting for duct and vent integration

  2. Installation of insulated flexible ductwork, ensuring optimal acoustic and thermal performance

  3. Strategic placement of the central unit in a mechanical closet

  4. Independent electrical connection with its own breaker

  5. Airflow balancing calibration in each zone to ensure perfect comfort

The installation took 4 days, including finishing and full performance testing.

Result: a transformation that’s invisible but powerful

The client immediately noticed improved overall comfort across all rooms, with no temperature fluctuation. The absence of noise, the system’s quick response, and above all the visual discretion were all highly appreciated.

"You can’t see it, you can’t hear it, but you feel the comfort, summer and winter. It’s exactly what I wanted, with no aesthetic compromise." — Client testimonial

Grant and return on investment

The installation was certified eligible for the LogisVert program by Hydro-Québec, allowing the client to benefit from a $4,100 grant. Combined with the system’s energy efficiency, the payback period is estimated at less than 5 years thanks to lower electricity bills.

Maintenance tips for a ducted system

A ducted system, while invisible, requires regular maintenance to ensure long-term performance:

  • Cleaning grilles and filters every 3 to 6 months

  • Inspecting ducts every 2 years

  • Preventative maintenance on the central heat pump before each season (spring and fall)

  • Airflow balancing check by a certified technician

At AirGreen, we offer an annual maintenance plan tailored to ducted systems, ensuring maximum efficiency and avoiding unexpected issues.

Why trust AirGreen for your HVAC installations?

With several hundred successful installations in Montréal, Laval, Longueuil, on the North Shore and South Shore, we’ve developed an approach based on:

  • Listening to your specific needs

  • Mastery of the most modern HVAC technologies

  • Precise integration expertise with respect to architecture

  • Attentive and long-term after-sales service

Every project includes personalized follow-up, from the initial assessment to the final performance test.

In summary: total comfort, preserved design, certified performance

This installation demonstrates AirGreen’s ability to deliver invisible, silent, and high-performing HVAC solutions, perfectly suited to Montréal’s architectural context. The Gree Flexx ducted heat pump installed in this project proves that comfort doesn’t require visual or acoustic compromises.

Have a similar project? Renovating a house? Upgrading a building? Contact us for a free, no-obligation consultation. At AirGreen, we transform your spaces into havens of thermal comfort, all year round.