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Hiver extrême sur la Rive-Nord : comment une thermopompe centrale a tenu bon par -30 °C
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Extreme winter on the North Shore: how a central heat pump held up at -30°C

A Harsh Winter Mastered Thanks to a Quality HVAC Installation on the North Shore

When temperatures reach the extreme winter lows of Quebec, only reliable and properly installed central heating systems can ensure optimal indoor comfort. This was clearly demonstrated during a major project carried out by AirGreen on the North Shore of Montreal, where a high-performance central heat pump faced -30 °C temperatures without failing. This job not only showcases our technical expertise, but also our ability to offer practical, durable solutions adapted to local climate realities.

AirGreen’s Intervention on the North Shore: Context and Challenges of an Extreme Winter

The home in question is a single-family residence located in Blainville, on the North Shore. The homeowners contacted us ahead of the winter, looking to replace their outdated gas system with a cleaner, more energy-efficient electric solution that qualified for grants.

The main challenges:

  • Extreme winter temperatures dropping to -30 °C

  • Need to heat a 2,000 sq. ft. space spread over two floors

  • Looking for a quiet, efficient, and durable system

  • Tight timeline to complete the installation before winter set in

We conducted a complete thermal analysis of the property and recommended a 60,000 BTU central heat pump system, model Bosch BOVA 60 + Air Handler BVA 60, compatible with R-454B refrigerant, known for its low environmental impact and superior energy efficiency.

Why Did We Choose This Bosch Central Heat Pump with R-454B Refrigerant?

The Bosch BOVA model paired with the BVA indoor unit is a premium-level solution designed for northern climates. Its benefits include:

  • Inverter technology for precise power adjustments based on real-time demand

  • Reliable operation in temperatures as low as -30 °C

  • Up to 20 SEER and 10 HSPF, delivering major energy savings

  • Use of R-454B refrigerant, more eco-friendly and efficient than R-410A

  • Eligibility for Hydro-Québec’s LogisVert grants, up to $5,000

Thanks to these features, the system ensures stable, quiet, and energy-efficient heating, ideal for the harsh winters of the North Shore.

Technical and Logistical Details of the Installation

The installation took place over two full days, led by a seasoned team of certified AirGreen technicians. Here are the key steps of the project:

  • Day 1:

    • Safe removal of the old gas system

    • Installation of the new Bosch BVA 60 heat exchanger in the mechanical room

    • Setup of the smart programmable thermostat

  • Day 2:

    • Installation of the Bosch BOVA 60 outdoor unit on an elevated galvanized stand to handle frost

    • Connection to the existing ductwork (with slight recalibration to improve airflow)

    • Vacuuming, pressure testing, and full system commissioning

Despite already freezing outdoor conditions, we delivered a fully operational system on schedule, providing immediate comfort to the occupants.

Result: Uncompromised Thermal Comfort, Even at -30 °C

A few weeks after the installation, during a morning when the outdoor temperature reached -30 °C, we conducted a follow-up visit. The results:

  • Indoor temperature steady at 22 °C throughout the house

  • No need for any backup heating

  • Electric consumption dropped by 40% compared to the previous gas system

  • No noise or vibration complaints

The homeowners praised the quiet operation of the outdoor unit, even in extreme cold, as well as the system’s responsiveness to changing temperatures.

Grant Eligibility and Environmental Impact

This Bosch R-454B central heat pump qualifies for both Hydro-Québec’s LogisVert grant and the federal Greener Homes program, allowing the homeowners to recover over $6,000 in total grants. Plus, by opting for a system that runs on R-454B refrigerant, they significantly reduced their carbon footprint while increasing their home’s resale value.

AirGreen’s Tips: What to Know Before Installing a Central Heat Pump in Winter

Here are a few recommendations based on our North Shore experience:

  • Don’t wait until winter to plan your installation: act in the fall to avoid delays

  • Make sure the chosen system is certified to perform in ultra-low temperatures

  • Consider insulating your ductwork, especially if it runs through the garage or attic

  • Demand certified, experienced technicians, like the ones at AirGreen, to avoid critical sizing or connection errors

What Sets Us Apart: Local Expertise, Human Approach, Measurable Results

At AirGreen, we don’t just sell HVAC systems. We build long-term comfort solutions tailored to your home, your budget, and the unique climate of Quebec. Our constant presence across Laval, Longueuil, Montreal, and the North Shore helps us better understand local needs and respond with rigor, transparency, and efficiency.

In short, this Bosch central heat pump installation on the North Shore proved that even the most extreme winters can be handled with the right technology and a trusted HVAC installer. AirGreen is here to support your home's energy transformation, offering durable, grant-eligible solutions built for Quebec’s climate.