Installation of a Sharp ZU1 Wall-Mounted Heat Pump in Côte Saint-Luc
Find out how AirGreen transformed a home in Côte Saint-Luc with the Sharp ZU1—optimal performance, eco-friendly R-32 refrigerant, and the highest subsidy in Quebec!
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The job on one screen
The unit’s data sheet
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.
The article, chapter by chapter
A Top-Tier Heat Pump Installation in Côte Saint-Luc – The Sharp ZU1 Advantage
At AirGreen, we take pride in delivering unparalleled HVAC solutions across Montreal, Laval, Longueuil, Rive Nord, and Rive Sud. Our recent Sharp ZU1 18,000 BTU wall-mounted heat pump installation in Côte Saint-Luc is a shining example of our expertise and commitment to comfort and energy efficiency.
About the Installation – Côte Saint-Luc’s Perfect Comfort Solution
Côte Saint-Luc, a vibrant area of Montreal, is known for its lively neighborhoods and diverse homes. The homeowners we worked with faced a common challenge—efficiently maintaining indoor comfort through freezing winters and hot summers. Their solution? The brand-new Sharp ZU1 mini-split heat pump. With its stellar features, including Plasmacluster technology, Coanda airflow control, and a 24.0 SEER efficiency rating, it’s no surprise this system was their top choice.
Here’s what makes this particular installation so special:
- Size: 18,000 BTU – Perfect for medium to large spaces.
- Heating Capacity: Operates flawlessly at temperatures as low as -27°C.
- Grant Eligibility: This Sharp ZU1 is eligible for the $2,640 LogisVert Grant—the highest subsidy for an 18,000 BTU unit in Quebec.
- Efficiency: With a 24.0 SEER rating, homeowners enjoy exceptional energy savings year-round.
Sharp ZU1 – Why It’s a Game-Changer
This isn’t just any wall-mounted heat pump. The Sharp ZU1 is a leap forward in comfort, sustainability, and advanced features:
Plasmacluster Technology – The Purest Air You Can Breathe
Sharp’s exclusive Plasmacluster technology replicates natural air purification processes, eliminating mold, allergens, airborne viruses, and odors. This feature alone sets the ZU1 apart from the competition, ensuring homeowners in Côte Saint-Luc breathe clean, fresh air.
- Eliminates Viruses: Safeguards indoor spaces from harmful airborne contaminants.
- Reduces Odors: Fights tobacco, cooking odors, and pet smells.
- Neutralizes Mold and Allergens: Perfect for allergy-prone families.
Coanda Airflow Control – Precision Comfort
Sharp’s Coanda airflow is a remarkable innovation that distributes air seamlessly across every corner of the room. Instead of direct blasts of cold or hot air, the system uses strategic airflow to harmonize temperatures, ensuring comfort without creating drafts.
- Ideal for Uniform Temperature: Redirects airflow across ceilings and walls.
- Reach Every Corner: Targets deep spaces and corners for balanced comfort.
- Long-Distance Airflow: Up to 15 meters—perfect for larger rooms.
The Installation Process – A Smooth Journey
Our AirGreen team ensured a hassle-free installation from start to finish. Upon arrival in Côte Saint-Luc, we assessed the layout, installed the outdoor and indoor units, and optimized the system for maximum efficiency.
Key Installation Details
- Interior Unit Dimensions: 41.42 x 9.80 x 12.44 inches.
- Exterior Unit Dimensions: 33.47 x 13 x 27.94 inches.
- Sound Pressure Levels:
- Interior: 25 / 49 dB(A) – Whisper-quiet operation.
- Exterior: 52 dB(A) – Minimal outdoor noise.
- Pipes: 1/4 - 3/8 – Ensuring perfect refrigerant flow.
- Refrigerant: R-32 – The most efficient and eco-friendly refrigerant available.
This installation required meticulous attention to detail, from mounting the interior unit to anchoring the outdoor compressor on the brick exterior. The result? A seamlessly functioning heat pump that delivers unparalleled comfort and air quality.
A Grant Worth Celebrating – $2,640 LogisVert Grant
Homeowners in Côte Saint-Luc were thrilled to learn that their new Sharp ZU1 heat pump qualifies for the $2,640 LogisVert Grant by Hydro-Québec. This grant, the highest offered for any 18,000 BTU machine in Quebec, ensures significant savings, making this an excellent investment.
We also guided them through the process of combining their provincial grant with a federal grant of $2,500 to $5,000, maximizing their financial benefits.
Why Choose the Sharp ZU1 Wall-Mounted Heat Pump?
Sharp heat pumps, particularly the ZU1, are unmatched in performance, energy efficiency, and technological innovation. Here’s why this system stands out:
- Extreme Cold Performance: Reliable heating even at -27°C.
- Energy Efficiency: 24.0 SEER for year-round savings.
- Quiet Operation: Minimal noise for maximum comfort.
- WiFi Connectivity: Control the system remotely via your smartphone.
- 10-10-10 Warranty: 10 years on parts, compressor, and labor – an industry-leading offer.
Additional Features
- Multi-Space Functionality: Distribute air evenly across multiple rooms.
- Self-Cleaning Mode: Prevent mold buildup for a longer-lasting unit.
- Winter Cool Mode: Allows cooling even in colder temperatures.
- Auto Restart: Restores operation seamlessly after power outages.
Sharp ZU1 – The Best Choice in Our 2025 Heat Pump Guide
As featured in our upcoming 2025 Guide to Wall-Mounted Heat Pumps, the Sharp ZU1 takes the top spot for its outstanding performance, affordability, and technological advancements. Whether you’re in Côte Saint-Luc, Montreal, Laval, or beyond, this system is the ideal choice for Quebec’s climate.
Eco-Friendly Comfort with R-32 Refrigerant
The Sharp ZU1 is ahead of its time, using R-32 refrigerant to deliver higher energy efficiency while minimizing environmental impact. Compared to traditional refrigerants, R-32 reduces greenhouse gas emissions and lowers energy consumption by up to 10%.
Why Trust AirGreen for Your Heat Pump Installation?
At AirGreen, we’re more than HVAC experts; we’re partners in your home comfort journey. Our highly trained technicians ensure flawless installations, optimized performance, and customer satisfaction at every step. We’re proud to serve Côte Saint-Luc and the Greater Montreal area with top-tier HVAC services.
Conclusion – Côte Saint-Luc Chooses AirGreen for Excellence
The recent installation of the Sharp ZU1 18,000 BTU wall-mounted heat pump in Côte Saint-Luc highlights why AirGreen is the trusted name in HVAC across Montreal and beyond. With unmatched features like Plasmacluster air purification, Coanda airflow, and industry-leading energy efficiency, the Sharp ZU1 is the ultimate solution for year-round comfort.
If you’re ready to transform your home’s comfort with the Sharp ZU1, contact AirGreen today. Let’s make your home the perfect place to live, work, and relax.
The job tools
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.
How the job unfolds
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 we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
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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).