Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Mercier–Hochelaga-Maisonneuve
Experience unmatched comfort with the SHARP ZU1 Heat Pump. Learn about its advanced features and how AirGreen ensures seamless installations across Montreal!
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.
Efficient Comfort Meets Advanced Technology: Our Recent SHARP Heat Pump Installation
In the heart of Mercier–Hochelaga-Maisonneuve, AirGreen recently completed the installation of a cutting-edge SHARP ZU1 15,000 BTU Wall-Mounted Heat Pump. This sleek and energy-efficient machine seamlessly combines state-of-the-art technology with eco-friendly features, offering unparalleled comfort to our client. Designed to excel in the harsh Quebec climate, this installation represents a perfect balance of innovation and performance.
Why the SHARP ZU1 Stands Out
This ductless heat pump is no ordinary machine—it’s an HVAC masterpiece that excels in both heating and cooling, even in temperatures as low as -27°C. Its use of R-32 refrigerant ensures that it meets the latest energy efficiency standards while reducing its environmental impact. Equipped with Plasmacluster technology and Coanda airflow control, this system delivers not just temperature regulation but also healthier, cleaner air throughout the home.
Here’s a quick rundown of its key features:
- Cooling Capacity: 15,000 BTU
- Heating Capacity: Reliable performance down to -27°C
- Energy Efficiency: An impressive 24.0 SEER, earning it Energy Star® certification
- Noise Levels: Quiet operation at just 23 dB(A) indoors, ensuring peace and comfort
- WiFi Connectivity: Integrated smart controls for ultimate convenience
Installation Details: Tailored for Comfort and Efficiency
Our team approached this installation with precision and care. The interior unit, measuring 41.42 x 9.80 x 12.44 inches, was strategically mounted above a door to optimize airflow. Meanwhile, the exterior unit, compact yet robust at 30.72 x 10.59 x 21.25 inches, was installed with careful consideration to ensure efficient drainage and protection from the elements.
To enhance durability, we applied SHARP’s anti-corrosive coating to safeguard the outdoor compressor against Quebec’s challenging winters. We also utilized multiple drainage holes to prevent water pooling and freezing, ensuring long-term reliability for the homeowner.
The $2,172 LogisVert Grant: A Game-Changer for Quebec Homeowners
Did you know this specific SHARP model qualifies for the highest possible LogisVert grant of $2,172? Hydro-Québec recognizes the ZU1’s superior energy efficiency and environmentally friendly features, making it a standout choice for homeowners looking to reduce their carbon footprint while saving on utility bills.
A Story Behind the Installation
The homeowner, a young professional working from home, sought a heating and cooling solution that could adapt to the unpredictable Quebec seasons. After extensive research, they chose the SHARP ZU1 for its exceptional performance, quiet operation, and modern features. Our consultation process included a thorough evaluation of their home’s layout, ensuring the system would deliver uniform temperature control across all rooms.
The installation was completed in just one day, thanks to the expertise of our certified technicians. Post-installation, the homeowner was thrilled to discover the system’s smart WiFi capabilities, allowing them to control the heat pump remotely via a smartphone app. This feature, coupled with real-time energy usage tracking, provided them with peace of mind and greater control over their energy consumption.
Technological Highlights: What Makes the SHARP ZU1 Unique
Plasmacluster Technology: Cleaner, Healthier Air
The SHARP ZU1 goes beyond temperature control by actively purifying indoor air. Its Plasmacluster ions work to eliminate:
- Airborne viruses and bacteria
- Mold spores
- Allergens
- Persistent odors, including tobacco residue
This feature is a game-changer for families with allergies or respiratory sensitivities, ensuring a healthier living environment.
Coanda Airflow Control: Superior Temperature Distribution
Thanks to the Coanda effect, this heat pump directs airflow along walls and ceilings to achieve uniform temperature distribution. Whether heating or cooling, it ensures that every corner of the home remains comfortable without unpleasant drafts.
Smart Features for Modern Living
Equipped with motion sensors, the ZU1 detects when rooms are occupied, optimizing energy usage by adjusting its operation accordingly. The accompanying smartphone app offers:
- Real-time temperature and humidity monitoring
- Detailed energy consumption reports
- GPS interlocking for automatic system adjustments based on your location
Built to Brave Quebec Winters
The SHARP ZU1 is designed with extreme weather in mind. Its patented Hot Gas Pipe System prevents the outdoor compressor from freezing, while its defrost mode reduces downtime during cold snaps. These features ensure uninterrupted comfort, even during Montreal’s harshest winter days.
Eco-Friendly and Future-Proof
With its use of the environmentally friendly R-32 refrigerant, the SHARP ZU1 aligns with Quebec’s push toward greener energy solutions. Compared to traditional refrigerants, R-32 offers:
- 10% greater energy efficiency
- 67% lower global warming potential
This makes the ZU1 not only a smart choice for your wallet but also for the planet.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we pride ourselves on delivering top-notch service and expertise. Here’s why homeowners across Montreal, Laval, Longueuil, Rive Nord, and Rive Sud trust us:
- Certified Technicians: Our team is fully trained to install and service advanced HVAC systems like the SHARP ZU1.
- Comprehensive Consultations: We work closely with you to identify the best solution for your home.
- Post-Installation Support: From grant applications to routine maintenance, we’ve got you covered.
By choosing AirGreen, you’re not just investing in a heat pump—you’re investing in comfort, reliability, and peace of mind.
Get Started Today
If you’re ready to upgrade your home with the latest in HVAC technology, contact us today for a free consultation. With the SHARP ZU1 and our professional installation services, you’ll enjoy year-round comfort and significant energy savings.
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).