Installation of a SHARP ZU1 24,000 BTU Wall-Mounted Heat Pump in Saint-Léonard
Discover how AirGreen expertly installed a SHARP ZU1 heat pump in a tight Saint-Léonard space, delivering efficient comfort, cleaner air, and energy savings. Learn why it’s a top choice!
- City
- Region
- Equipment
- Brand
- Challenges
- Published
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 Perfect Fusion of Power, Efficiency, and Modern Comfort
At AirGreen, we recently completed an impressive installation in Saint-Léonard, bringing exceptional heating and cooling capabilities to another satisfied customer. Our mission: to install a SHARP ZU1 24,000 BTU wall-mounted heat pump—a modern mini-split system celebrated for its performance, reliability, and cutting-edge technology.
This project wasn’t just another installation; it reflected attention to detail, precision, and our commitment to transforming residential spaces into zones of unparalleled comfort, even in extreme climates. What made this project unique was the limited outdoor space that required our team to think strategically while ensuring optimal functionality and aesthetics.
The SHARP ZU1: Why It Stands Out in the Market
The SHARP ZU1 series is a game-changer for Quebec homeowners, and here’s why:
- Heating Capacity: Operates efficiently at temperatures as low as -27°C, making it ideal for Quebec’s brutal winters.
- Cooling Capacity: A robust 24,000 BTU ensures optimal summer comfort.
- Energy Efficiency: With an impressive 22.0 SEER rating and Energy Star® certification, it’s both eco-friendly and cost-effective.
- Refrigerant: The system uses R-32 freon, an environmentally friendly refrigerant that reduces energy consumption by approximately 10% compared to older systems.
- Plasmacluster Technology: A standout feature that purifies indoor air by neutralizing allergens, airborne bacteria, and odors—ensuring healthier, cleaner air circulation.
- WiFi Integration: Easily manage temperature settings through a user-friendly smartphone app for added convenience.
The SHARP ZU1 was also awarded top honors in our 2025 Wall-Mounted Heat Pump Guide for its ability to combine cutting-edge features, unmatched performance, and affordability.
Overcoming Challenges in a Tight Installation Space
This particular installation required careful consideration due to the limited outdoor clearance. With only a narrow alley available, positioning the exterior unit of the SHARP ZU1 was challenging. At AirGreen, we don’t settle for “good enough”—we go for perfection.
Here’s how we addressed the situation:
- Custom Mounting Brackets: Our technicians installed heavy-duty brackets to secure the outdoor unit at a safe elevation, allowing for proper airflow and drainage.
- Efficient Routing: Refrigerant pipes (1/4 - 3/8) and electrical connections were meticulously routed to minimize their visibility and ensure a clean, professional appearance.
- Noise Control: Despite its close proximity to the building, the SHARP ZU1 operates at an ultra-quiet 53 dB(A) for the outdoor unit and as low as 25 dB(A) indoors.
This meticulous approach not only ensured functionality but also preserved the visual harmony of the homeowner’s exterior.
Air Purification Like No Other: Plasmacluster Technology
One of the standout features of the SHARP ZU1 system is its Plasmacluster technology. For homeowners in Saint-Léonard, this isn’t just about staying warm or cool—it’s about enjoying superior air quality.
- Eliminates Mold and Bacteria: Airborne contaminants are neutralized through Plasmacluster ions.
- Odor Control: Whether it’s cooking smells, pets, or tobacco, Plasmacluster efficiently removes odors.
- Healthier Living: The system actively reduces allergens and airborne viruses, creating a safer indoor environment.
For our customers, this means cleaner air every single day—a breath of fresh air in every room.
Technology That Works for You
The SHARP ZU1 is equipped with some of the most advanced features in the industry:
- Coanda Airflow Control: Redirects airflow along walls and ceilings for uniform heating and cooling. Say goodbye to hot or cold spots!
- Smart Connectivity: Manage your system remotely using SHARP’s mobile app. From adjusting temperatures to monitoring energy usage, control is always at your fingertips.
- Multi-Space Comfort: The ZU1 distributes airflow seamlessly across multiple rooms, ensuring consistent temperatures throughout the home.
Cost Savings with the LogisVert Grant
This installation was also eligible for the $2,688 LogisVert grant offered by Hydro-Québec, providing significant savings for the homeowner. By choosing an energy-efficient SHARP ZU1 system, our customers not only benefit from reduced utility bills but also enjoy government-backed financial incentives.
Durability and Reliability: Built for Quebec’s Winters
At AirGreen, we know the challenges that Quebec’s climate presents. That’s why the SHARP ZU1 is the perfect solution for homes across Montreal, Laval, Longueuil, North Shore, and South Shore.
Key features include:
- Hot Gas Pipe Technology: Prevents the outdoor compressor from freezing in extreme cold.
- Defrost Function: Reduces defrosting time by 60%, keeping the interior temperature consistent.
- Anticorrosive Coating: Extends the lifespan of the outdoor unit, ensuring long-term reliability even in harsh conditions.
Why Choose AirGreen?
At AirGreen, our installations are more than just projects—they’re opportunities to deliver comfort, quality, and peace of mind. Here’s what sets us apart:
- Experienced Technicians: Our team has extensive expertise in installing heat pumps under any conditions.
- Customer Satisfaction: We prioritize your comfort, ensuring each system operates flawlessly.
- Attention to Detail: From selecting the right brackets to ensuring noise reduction, we cover every angle.
This project in Saint-Léonard reflects our commitment to excellence. By overcoming space constraints, ensuring a flawless installation, and delivering top-tier technology, we’ve transformed our client’s home into an oasis of comfort.
Key Takeaways: Why the SHARP ZU1 is a Top Choice
- Unmatched Heating and Cooling: 24,000 BTU capacity with operation down to -27°C.
- Eco-Friendly Refrigerant: Uses R-32 for reduced energy consumption and environmental impact.
- Advanced Air Quality: Plasmacluster technology eliminates airborne contaminants.
- Smart Controls: WiFi-enabled for maximum convenience.
- Durability: Built to withstand Quebec’s extreme winters.
With AirGreen’s professional installation, this SHARP ZU1 heat pump will provide the homeowner with years of reliable performance, healthier air, and energy savings.
Looking for a Trusted Heat Pump Installer in Greater Montreal?
At AirGreen, we specialize in high-quality ductless heat pump installations across Montreal, Laval, Longueuil, North Shore, and South Shore. Whether you’re dealing with space limitations, extreme winters, or simply want a modern, energy-efficient solution, the SHARP ZU1 is a game-changer.
If you’re considering upgrading your HVAC system, reach out to us today. Let us bring comfort, efficiency, and clean air to your home—just as we did for our satisfied customer in Saint-Léonard.
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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
The on-site estimate is free and the quote follows within 24 hours.
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).