Two wall-mounted heat pump giants put to the test by Quebec's climate
In Quebec, where winters can be harsh and summers sweltering, choosing a wall-mounted heat pump is not a decision to take lightly. Among the most reputable brands, Gree and Fujitsu stand out as two undisputed leaders in the market. But when it’s time to choose between them for an HVAC installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore, which one proves to be more efficient, durable, cost-effective, and better suited to our extreme climate conditions? At AirGreen, we’ve installed hundreds of systems from both brands, and this article draws on our field expertise to help settle the score between these two energy-performance champions.
The reality on the ground in Quebec: a crucial context
Before comparing models, it’s essential to understand that Quebec’s climate puts wall-mounted heat pumps through a serious test. With temperatures dropping below -25°C in winter and rising above 30°C in summer, a unit must be robust, consistent, and highly energy-efficient. On top of that, there are incentives from Hydro-Québec’s LogisVert grant program, which favor high-performance equipment.
Gree’s technical profile: reliability and innovation built for the cold
A closer look at the Gree Extreme and Gree Sapphire
We’ve installed Gree Extreme and Gree Sapphire models in Sainte-Julie, Beaconsfield, Saint-Lambert, and Sainte-Marthe-sur-le-Lac, and the performance observed during the winter months has been impressive. These Gree wall-mounted heat pumps operate effectively down to -30°C, making them ideal for poorly insulated homes or those exposed to strong northern winds.
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BTU capacity: from 9,000 to 24,000 BTU depending on the model.
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High Coefficient of Performance (COP), even in frigid weather.
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LogisVert eligibility: up to $2,172 in grants depending on the case.
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Built-in Wi-Fi connectivity, ideal for remote control.
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Low noise levels (around 19 dB), perfect for bedrooms or home offices.
Customer case: Gree Extreme 18,000 BTU in Sainte-Julie
In a single-family home in Sainte-Julie, we installed a Gree Extreme 18,000 BTU to replace an old window AC. Despite the particularly harsh winter of 2024, the unit maintained a steady indoor temperature without any auxiliary heating. Result: a nearly 30% drop in the electricity bill.
Fujitsu’s technical profile: Japanese excellence and energy efficiency
Spotlight on the Fujitsu KZAH R-32
The Fujitsu KZAH R-32 is a high-end wall-mounted heat pump that’s become a favorite among clients on the South Shore and in Longueuil, especially in multiplexes and condos. This model stands out for its advanced Inverter technology, its eco-friendly R-32 refrigerant, and its steady performance down to -26°C.
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BTU capacity: 9,000, 12,000, 15,000 BTU.
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Energy class A+++.
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Ultra-silent compressor.
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Compact, modern design, ideal for smaller rooms.
Case study: Fujitsu KZAH 12,000 BTU in Longueuil
We recently installed a Fujitsu KZAH 12,000 BTU in a downtown Longueuil condo near the metro. The client was looking for an efficient and stylish solution for a 500 sq. ft. main room. The result: consistent thermal comfort, minimal power consumption, and no noise disturbance. All with a $1,704 grant thanks to Hydro-Québec.
Head-to-head comparison: Gree vs Fujitsu
| Criteria | Gree Extreme / Sapphire | Fujitsu KZAH R-32 |
|---|---|---|
| Temperature range | Down to -30°C | Down to -26°C |
| Refrigerant | R-410A (Sapphire), R-32 (new models) | R-32 |
| Noise level | Very low (19–21 dB) | Ultra-quiet |
| Grant eligibility | Up to $2,172 | Up to $1,704 |
| Design | More traditional | Sleeker, more modern |
| Control options | Remote + Wi-Fi | Remote + Mobile app |
| Installation price (approx.) | $ | $$ |
No matter which brand you choose, a professional HVAC installation makes all the difference. At AirGreen, we provide:
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A full thermal analysis of your property.
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Fast and meticulous installation, often completed in one day.
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Guidance on obtaining LogisVert grants.
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Responsive after-sales service, with seasonal maintenance available across the North Shore, South Shore, Montreal, Laval, and Longueuil.
Our verdict: which brand should you choose?
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Do you live in a particularly cold or windy area like Oka, Mascouche, or Saint-Jérôme? The Gree Extreme or Sapphire is likely your best bet, thanks to its rugged build and ability to function down to -30°C.
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Do you live in a condo or townhouse in Longueuil or Brossard and prioritize silence and aesthetics? The Fujitsu KZAH R-32 offers the ideal balance of efficiency, low consumption, and discreet operation.
Practical tips for choosing the right wall-mounted heat pump
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Consider your home's insulation and exposure.
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Choose models eligible for LogisVert subsidies.
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Select a BTU rating that matches each room’s size.
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Always get a customized estimate from an HVAC expert like AirGreen.
Testimonials from satisfied clients
“Thanks to AirGreen, we had a Gree installed in Sainte-Marthe-sur-le-Lac. Even at -28°C this winter, our living room stayed cozy and our bill went down!” — Mr. Bérubé
“The team recommended a Fujitsu KZAH for our condo in Laval. Quick install, silent unit, and great follow-up. Thank you!” — Ms. Lefebvre
Conclusion: two winning brands depending on your needs
Both brands have proven themselves, but the choice depends on your climate priorities, residential setting, and your comfort and design expectations. At AirGreen, we never give one-size-fits-all recommendations. We tailor every project to your specific needs, offering custom HVAC solutions throughout the Greater Montreal Area.