Thermopompe murale : le secret pour un fonctionnement ultra-silencieux révélé par AirGreen
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Wall-mounted heat pump: AirGreen reveals the secret to ultra-quiet performance

An installation that changes everything: silence, comfort, and performance combined

At AirGreen, we know that thermal comfort isn’t just about reaching the right temperature. Silence is a key factor in turning a living space into a true sanctuary. That’s why more and more of our clients in Montréal, Laval, Longueuil, on the North Shore and South Shore are asking us for a wall-mounted heat pump that combines energy efficiency, discreet design, and most importantly, ultra-quiet operation. Today, we’re lifting the curtain on what truly makes a difference when it comes to a quiet HVAC installation, sharing a unique perspective from our many field interventions.

Why silence has become a top priority for our clients

Lifestyles have changed. With more people working from home, raising young children, or simply seeking peace of mind, ambient noise has become a growing concern in households. A noisy wall-mounted heat pump can quickly become a daily irritation. We’ve seen it firsthand with clients who reach out to us to replace poorly installed or improperly sized units—often purchased without any technical consultation.

How AirGreen ensures minimal noise levels

Choosing the right unit: brands and models designed for quiet

We only recommend units known for their sound levels below 20 dB on low speed, a threshold that’s virtually inaudible. Here are a few models we regularly install:

  • Fujitsu KZAH R-32 (12,000 to 18,000 BTU): one of the quietest on the market, with outstanding winter heating performance.

  • Sharp ZU1 (15,000 to 24,000 BTU): appreciated for its ultra-quiet mode and discreet design.

  • Gree Sapphire (up to 22 SEER): quiet, compact, and eligible for Hydro-Québec’s LogisVert rebates.

All of these models offer a "Quiet" or "Silent" mode that drastically reduces decibels without sacrificing thermal efficiency.

Professional, customized installation

A good unit that’s poorly installed can still be noisy. At AirGreen, we pay close attention to the following elements:

  • Anti-vibration wall mounting: to avoid echoing on structural or thin interior walls.

  • Strategic placement: avoiding echo-prone corners or locations near bedrooms.

  • Refrigerant line management: optimal insulation to prevent fluid whistling.

Each installation includes a noise assessment before, during, and after commissioning.

Case study: restored silence in a Longueuil home

We were recently contacted by a family in Longueuil complaining about a loud blowing noise from their old wall-mounted air conditioner in the living room. After inspection, we identified an outdated unit that was oversized for the room, with a compressor that vibrated excessively.

We recommended replacing it with a Fujitsu KZAH 15,000 BTU wall-mounted heat pump. Thanks to its Inverter technology and ultra-quiet compressor, the noise level dropped to under 21 dB in night mode. We also mounted the outdoor unit on an insulated pad with anti-vibration mounts, eliminating all vibration transmission through the home’s structure. The result: a thrilled family, restored thermal comfort, and absolute quiet.

Tips for choosing a truly quiet wall-mounted heat pump

1. Don’t rely solely on the spec sheet

Even if manufacturer specs show 19 dB, that means nothing without a proper installation. A skilled installer is the real key to silence.

2. Go for high-end brands

Brands like Fujitsu, Sharp, Gree, and Bosch invest heavily in R&D to lower noise without compromising performance. They also offer advanced features like:

  • Redesigned fan blades

  • Automatic eco-quiet mode

  • Floating mount compressors

3. Don’t overlook the outdoor unit

Often ignored, the outdoor unit can be the main source of noise. We recommend:

  • A solid concrete base

  • Anti-vibration mounts

  • Placement away from bedroom windows

4. Maintain your heat pump regularly

A poorly maintained heat pump can get noisy. Dust buildup on the evaporator, unbalanced fan blades, or improper refrigerant charge can all cause noise issues. At AirGreen, we offer a comprehensive annual maintenance program to prevent these problems.

Available rebates for quiet high-end models

Good news: most of the quiet, high-efficiency models installed by AirGreen are eligible for Hydro-Québec’s LogisVert rebate program:

  • Up to $1,860 in rebates for certain high-efficiency wall-mounted units.

  • Available for primary residences in Montréal, Laval, Longueuil, South Shore, North Shore.

  • We take care of the entire rebate application process for our clients.

Why choose AirGreen for your quiet wall-mounted heat pump

Unmatched expertise

We don’t just sell and install heat pumps. We provide a complete solution, built around:

  • A personalized thermal assessment of your home

  • An installation optimized for quiet and performance

  • Ongoing support for service, maintenance, and rebates

Hundreds of successful installations

Whether in condos in Montréal, family homes on the North Shore, or bungalows in Longueuil, our technical teams know how to tailor each installation to the space’s specific constraints.

Professional and human-centered customer service

We understand that every home is unique—just like its occupants. That’s why we take the time to listen, advise, and offer you the best silence-to-performance ratio based on your real needs.


Conclusion

Silence has become as important to comfort as temperature. At AirGreen, we’ve perfected our expertise in installing ultra-quiet wall-mounted heat pumps that transform your daily life while lowering your energy costs. If you’re looking for a solution that combines soundless operation, energy efficiency, and winter-ready performance, we’re your trusted partner in Montréal, Laval, Longueuil, on the North Shore and South Shore.

Contact us today for a free quote and discover how true silence can change your everyday life.