Rigorous installations designed to withstand Quebec’s harshest winters
At AirGreen, we know that wall-mounted heat pumps aren’t just a luxury for our clients in Montréal, Laval, Longueuil, the North Shore, or the South Shore — they’re a necessity. But in a climate where winter temperatures can drop well below -25°C, not all heat pumps are created equal. That’s why we’ve developed a rigorous testing methodology to ensure the models we install truly deliver — even in the most extreme conditions.
Equipment tested in the field, not just in the lab
Many manufacturers claim ideal performance based on lab conditions. At AirGreen, we go much further. Every wall-mounted heat pump we offer goes through a series of real-world tests — often in the homes of our first partner clients — to verify durability, consistency, and efficiency.
Our tests include:
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Continuous monitoring of heating capacity in extreme cold
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Evaluation of compressor performance and defrost cycles in deep freeze
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Measurement of energy consumption versus actual output
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Assessment of indoor comfort despite harsh exterior temperatures
Why do we test our heat pumps in extreme weather?
We’re committed to offering HVAC solutions that deliver true thermal comfort year-round, with no surprises during deep freeze events. Our testing aims to:
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Identify the most reliable models for the Quebec climate
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Eliminate units that perform well only on paper
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Optimize our installations for maximum energy efficiency
Case Study: Installation of a Gree Extreme wall-mounted heat pump in Saint-Jérôme (North Shore)
In the heart of January, with nighttime lows reaching -28°C, we installed an 18,000 BTU Gree Extreme wall-mounted heat pump in a single-family home in Saint-Jérôme. The homeowner wanted to replace their outdated electric heating system, which was too power-hungry and inefficient in winter.
Challenges encountered:
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The exterior wall was poorly insulated, raising concerns about heat loss
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The ideal location for the indoor unit wasn’t accessible without rerouting refrigerant lines
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The client requested minimal indoor noise
AirGreen Solutions:
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Added high-density insulation behind the indoor mounting plate
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Designed a custom conduit path to avoid cold wall sections
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Installed an acoustic muffler on the outdoor unit
Results:
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Stable indoor temperature of 22°C, even when it was -30°C outside
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A 38% drop in energy consumption compared to the previous winter
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A highly satisfied client impressed by the quiet operation and consistent comfort
Our top-performing models for Quebec winters
Through years of field testing and real-world experience, we’ve identified certain wall-mounted heat pumps that perform exceptionally well in extreme cold:
Fujitsu KZAH R-32 (15,000 to 18,000 BTU)
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High-performance inverter compressor
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Maintains heating capacity down to -26°C with no major drop
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Quiet, compact, ideal for small spaces
Gree Extreme R410A (18,000 to 24,000 BTU)
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NEEP Cold Climate certified
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Operates down to -30°C
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Eligible for the Hydro-Québec LogisVert grant (up to $1,860)
Sharp ZU1 R-32 (12,000 to 24,000 BTU)
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Excellent automatic defrost performance
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Smart restart technology after power failure
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Very strong energy efficiency in both winter and summer
A rigorous and evolving testing methodology
Each winter, we refine our approach by integrating new evaluation criteria:
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Post-winter surveys with installed clients (comfort level, actual consumption)
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Spring technical inspections to detect wear or condensation build-up
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Brand and model comparisons, tailored to different home profiles (bungalow, condo, duplex, etc.)
Customer Testimonial: Lachine, Montréal
“The AirGreen team installed our Fujitsu heat pump in December. Despite the cold snap in January, the house stayed comfortable without a spike in our electricity bill. This is the first heating system that’s truly satisfied us.”
— Ms. Gauthier, Lachine
Why choose AirGreen for your wall-mounted heat pump installation?
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Years of hands-on experience in the toughest winter conditions
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Carefully selected models proven to suit our climate
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Certified team trained in thermal diagnostics
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Local after-sales service, responsive and professional
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In-depth knowledge of all grants, including LogisVert and other provincial programs
Conclusion: Tested and approved systems designed for Quebec
At AirGreen, we don’t just sell equipment — we install custom-built solutions, designed to last and engineered to perform in Quebec’s harshest winters. Thanks to our extensive real-world testing and hands-on experience, we guarantee that every wall-mounted heat pump we recommend is fully capable of keeping you comfortable all year long, even during deep freezes.
Looking for a reliable HVAC installation to face the bitter cold? Trust AirGreen for a tailored assessment and professional installation anywhere in Montréal, Laval, Longueuil, on the North Shore or the South Shore.