Installation of a Sharp ZU1 Wall-Mounted Heat Pump in the South Shore
Discover how AirGreen installed the cutting-edge Sharp ZU1 Wall-Mounted Heat Pump in the South Shore, offering eco-friendly heating and cooling with Quebec's highest grant of $2,172!
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
An Efficient and Eco-Friendly Solution for Quebec's Harsh Winters
When it comes to dealing with the harsh extremes of Quebec's climate, homeowners across Montreal, Laval, Longueuil, and the South Shore are constantly seeking reliable, energy-efficient solutions. This week, we completed the installation of a Sharp ZU1 Wall-Mounted Heat Pump at a residence on the South Shore, and we’re excited to share the details of this cutting-edge system.
The Sharp ZU1: A Game Changer for Your Home Comfort
At AirGreen, we prioritize comfort and energy efficiency, and the Sharp ZU1 perfectly aligns with these values. This 15,000 BTU system is designed to handle Quebec's frigid winters, performing optimally even at temperatures as low as -27°C. The Sharp ZU1 stands out due to its innovative features, including the use of the environmentally friendly R-32 refrigerant and Plasmacluster technology, making it not just an HVAC solution but a step towards greener living.
Why Choose the Sharp ZU1?
- Energy Efficiency: With an impressive 24.0 SEER rating, this heat pump ensures your home stays comfortable while consuming less energy. This means lower electricity bills without sacrificing comfort.
- Plasmacluster Technology: This feature sets Sharp apart from other brands. It purifies the air by eliminating airborne viruses, bacteria, and allergens, ensuring your home is not only heated or cooled efficiently but also enjoys superior air quality.
- LogisVert Grant: The Sharp ZU1 is eligible for a $2,172 Hydro-Québec LogisVert grant, the highest available for any 15,000 BTU mini-split in Quebec. This significant financial incentive makes it an affordable and environmentally responsible choice.
A Unique Installation on the South Shore
Our team at AirGreen was tasked with installing the Sharp ZU1 Wall-Mounted Heat Pump for a family on the South Shore, who were looking for a year-round solution to keep their home comfortable. This installation was particularly unique because of the home's structure, which required special considerations to ensure optimal airflow and efficiency.
We began by carefully selecting the installation site to ensure the exterior unit would be well-protected while allowing for efficient heat exchange. The Sharp ZU1's sleek design and compact size made it ideal for the home’s layout, allowing us to install it seamlessly without altering the building's aesthetic.
The Importance of a Well-Planned Installation
In HVAC installations, particularly in regions like Quebec where temperatures can drop dramatically, proper planning is crucial. The Sharp ZU1 was positioned on a sturdy exterior stand, ensuring stability and protection from snow accumulation during winter. The indoor unit was installed strategically to maximize airflow throughout the home, leveraging Sharp’s Coanda airflow technology to distribute air evenly across rooms without creating drafts.
This installation wasn’t just about placing the equipment—it was about ensuring the homeowners would experience uniform comfort in every corner of their home. We made sure to optimize the placement of the long diffuser flap to direct airflow effectively, providing cooling in the summer and warmth during the coldest winter days.
Features That Make a Difference
- Cold Climate Ready: With its ability to operate at temperatures as low as -27°C, the Sharp ZU1 ensures that even in the coldest months, your home stays warm without relying on additional heating sources.
- Quiet Operation: One of the standout features of this unit is its ultra-quiet performance, with an exterior sound pressure level of just 49 dB(A) and interior levels as low as 23 dB(A). This makes it perfect for creating a peaceful home environment.
- Advanced Inverter Technology: The Sharp ZU1 uses a high-efficiency inverter system that adjusts the compressor’s speed to maintain the desired temperature without cycling on and off. This leads to enhanced comfort, greater energy savings, and less wear on the system.
- Self-Cleaning Mode: Sharp’s Plasmacluster technology isn’t just for air purification. It also helps prevent mold buildup inside the unit, thanks to the self-cleaning mode that circulates ions to resist mold development and maintain optimal air quality.
A Future-Proof Choice
In addition to these impressive features, the Sharp ZU1 is equipped with WiFi connectivity, allowing homeowners to control the system remotely via their smartphones. Whether adjusting the temperature on a cold winter night or switching to cooling mode during a summer heatwave, the Sharp ZU1 provides unmatched convenience and control.
With Quebec's government implementing stricter energy efficiency regulations in the coming years, the Sharp ZU1 is ahead of the curve. Its use of the R-32 refrigerant aligns with the shift toward more environmentally sustainable solutions, reducing greenhouse gas emissions and contributing to a greener planet.
Why AirGreen?
At AirGreen, we don’t just install HVAC systems—we build lasting relationships with our customers by providing personalized service and high-quality installations. The Sharp ZU1 is just one example of the top-tier products we offer, and this project on the South Shore is a testament to our commitment to excellence.
Our team of certified technicians ensured that every step of the installation was completed with precision and care. From selecting the best location for the outdoor unit to configuring the indoor unit's airflow control, we focused on maximizing the system’s efficiency and lifespan.
Final Thoughts
The installation of the Sharp ZU1 Wall-Mounted Heat Pump at this South Shore residence marks yet another successful project for AirGreen. With its cutting-edge technology, energy efficiency, and superior air purification capabilities, the Sharp ZU1 is the perfect solution for homeowners in Quebec looking to stay comfortable year-round.
If you’re looking for a reliable, eco-friendly HVAC system that can handle Quebec’s extreme climate, contact us today for a quote on the Sharp ZU1 Wall-Mounted Heat Pump. We’re here to help you find the best solution for your home, complete with government grants and incentives that make it more affordable than ever.
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What the unit delivers when it is cold
The range as published on airgreen.ca: pick a size to see its capacity in deep cold.
| Size | Heating at −8 °C | Heating at −15 °C | Coldest certified point | COP at −15 °C | SEER | HSPF | Indicative LogisVert aid |
|---|---|---|---|---|---|---|---|
| Sharp ZU1 12 000 | 14,500 | 12,000 | −27 °C: 7,200 | 2.11 | 22.0 | 11.0 | $1,740 |
| Sharp ZU1 15 000 | 18,100 | 15,300 | −27 °C: 10,100 | 2.1 | 24.0 | 11.0 | $2,172 |
| Sharp ZU1 18 000 | 22,000 | 18,000 | −27 °C: 11,500 | 2.2 | 24.0 | 11.0 | $2,640 |
| Sharp ZU1 24 000 | 22,400 | 19,000 | −27 °C: 12,300 | 2.2 | 22.0 | 11.0 | $2,688 |
According to NEEP, it delivers 14,500 BTU/h at −8 °C (17 °F), more than at 8 °C (14,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 7,200 BTU/h, 60% of its nominal 12,000 BTU size.
At 8 °C, its certified maximum capacity reaches 17,100 BTU/h, 42% more than its nominal 12,000 BTU size.
According to NEEP, it delivers 18,100 BTU/h at −8 °C (17 °F), more than at 8 °C (18,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 10,100 BTU/h, 67% of its nominal 15,000 BTU size.
At 8 °C, its certified maximum capacity reaches 21,800 BTU/h, 45% more than its nominal 15,000 BTU size.
According to NEEP, it delivers 22,000 BTU/h at −8 °C (17 °F), more than at 8 °C (21,600 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its COP at −27 °C is 1.88: the highest of the ZU1 line, which ranges from 1.79 to 1.82 at that temperature.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 11,500 BTU/h, 64% of its nominal 18,000 BTU size.
At −27 °C, its certified minimum capacity is 3,200 BTU/h (5,500 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 19,000 BTU/h, 79% of its nominal 24,000 BTU size. Its COP there is 2.20.
Data read live from the airgreen.ca page of each size (NEEP / AHRI certified performance). When the title names the installed size, it is highlighted; otherwise the whole range is shown. The aid shown is today’s, using Hydro-Québec’s rule ($120 per 1,000 BTU/h at −8 °C); amounts quoted in the article date from its publication. Only Hydro-Québec confirms the assistance granted.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Baseboards and electric furnaces turn 1 kWh of electricity into 1 kWh of heat. A heat pump delivers more: that is its COP. At Hydro-Québec’s rate D (11.142¢/kWh above 40 kWh a day, since 1 April 2026):
Hydro-Québec: a heat pump can be up to three times more efficient than baseboards for heating in the colder months.
Estimate per kWh of heat, at the chosen temperature, using the certified COP from the product page. Taxes, access charge and backup heat not included.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).