Installation of a SHARP ZU1 24,000 BTU Wall-Mounted Heat Pump in Ville-Marie
Experience year-round comfort with AirGreen’s SHARP ZU1 installation in Ville-Marie. Clean air, energy savings, and cutting-edge technology—all in one heat pump.
Take a tour of the installation
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.
The Perfect Balance of Comfort, Technology, and Efficiency for Ville-Marie Residents
In the heart of Ville-Marie, where Montreal’s winters bite hard and summers test endurance, finding the right wall-mounted heat pump becomes more than just a choice—it’s a necessity. Recently, we at AirGreen completed an impressive installation of the SHARP ZU1 24,000 BTU mini split system for one of our clients. With its advanced R-32 refrigerant technology, extreme cold weather performance, and exceptional air purification, the SHARP ZU1 is a game-changer for any Montreal home.
Why the SHARP ZU1 is Perfect for Montreal Homes
Montreal’s ever-changing weather demands a heat pump that can do it all—efficient cooling in summer and reliable heating in freezing winters. The SHARP ZU1, ranked the highest in “Notre Guide des Thermopompes Murales 2025,” meets and exceeds these demands with:
- Cooling Capacity: 24,000 BTU for hot, humid summers.
- Heating Capacity: Operates seamlessly down to -27°C, ensuring warmth even in Quebec’s harshest winters.
- Energy Efficiency: 22 SEER rating and ENERGY STAR® certification, guaranteeing lower energy bills and environmental impact.
- Noise Levels: Whisper-quiet operation—just 25 dB indoors, perfect for peaceful nights.
But this isn’t just any wall-mounted heat pump. It’s equipped with Plasmacluster technology and Coanda airflow control, delivering not only comfort but also cleaner, healthier air.
The Story Behind the Installation
Our client in Ville-Marie needed a solution that could endure long winters while keeping their family comfortable year-round. Their priorities? Reliability, energy savings, and air quality.
We introduced them to the SHARP ZU1, a unit we often recommend for homeowners seeking top-tier performance without compromise. After carefully analyzing their needs, our team designed and executed the installation with precision. The outdoor condenser, expertly mounted on a reinforced ceiling bracket, optimizes airflow while minimizing any impact on the space below. The indoor head, sleek and modern, blends effortlessly into their living area.
With AirGreen’s commitment to high-quality installations and attention to detail, the client received a system that not only works flawlessly but also enhances their home’s comfort and value.
Plasmacluster: Clean Air Technology for Healthier Living
SHARP heat pumps stand out for their unique Plasmacluster ionization technology—a feature unmatched by other mini splits. Imagine breathing the crisp, clean air of nature indoors. That’s what Plasmacluster delivers. Here’s how:
- Eliminates Viruses and Bacteria: Neutralizes airborne pathogens for a healthier home.
- Reduces Mold and Allergens: Perfect for allergy sufferers and families.
- Fights Odors: Breaks down lingering smells from pets, cooking, and tobacco.
Our Ville-Marie client loved the idea of combining comfort with healthier indoor air, a benefit especially valuable in urban settings.
Coanda Airflow Control: No More Uneven Temperatures
One common complaint we hear from homeowners is uneven heating and cooling. Some rooms are too hot, others too cold. The SHARP ZU1 solves this problem with its Coanda airflow technology. Instead of blasting air directly, it redirects airflow along walls and ceilings, ensuring a uniform temperature throughout the home.
In Ville-Marie, this was particularly important as the client’s living space had open-concept areas prone to temperature imbalances. With Coanda airflow, they now enjoy consistent comfort in every corner of their home.
R-32 Refrigerant: The Future of Efficiency and Sustainability
At AirGreen, we take pride in offering environmentally responsible solutions. The SHARP ZU1 uses R-32 refrigerant, which:
- Reduces greenhouse gas emissions by up to 67% compared to older refrigerants.
- Improves energy efficiency, cutting electricity costs by around 10%.
- Aligns with upcoming government energy regulations for 2025.
This feature appealed to our client’s commitment to a greener future while helping them save on energy bills.
Seamless Integration with Smart Technology
Modern living requires modern solutions. The SHARP ZU1 comes equipped with built-in WiFi connectivity and smart controls, giving homeowners complete control over their comfort. Through a user-friendly app, our client can:
- Adjust temperature settings remotely.
- Monitor energy usage in real time.
- Receive notifications about maintenance or unusual activity.
This smart functionality ensures peace of mind and convenience, especially during Montreal’s unpredictable weather shifts.
A Noise-Free Solution for Maximum Comfort
Nobody wants a loud HVAC system disrupting their home. The SHARP ZU1 delivers whisper-quiet performance:
- Interior Unit: 25 to 49 dB, quieter than a soft whisper.
- Exterior Unit: 53 dB, minimizing noise even in compact spaces.
In Ville-Marie’s urban environment, where space is limited, this low-noise feature proved to be a significant advantage.
Eligibility for the $2,688 LogisVert Grant
One of the highlights of this installation is the system’s eligibility for the $2,688 LogisVert grant provided by Hydro-Québec. This grant made the SHARP ZU1 an even smarter investment for our client, offering substantial savings on an already energy-efficient system.
At AirGreen, we ensure our clients take full advantage of available grants and subsidies, making high-quality heat pumps accessible and affordable.
Why Choose AirGreen for Your Heat Pump Installation?
As a trusted HVAC provider serving Montreal, Laval, Longueuil, North Shore, and South Shore, we take pride in our commitment to:
- Top-Quality Installations: Precision and professionalism in every project.
- Expert Guidance: Helping you choose the best system for your needs.
- Outstanding Service: From installation to aftercare, we’re here for you.
The SHARP ZU1 installation in Ville-Marie is just one example of how we bring innovative HVAC solutions to homes across Greater Montreal.
Ready to Upgrade Your Home Comfort?
If you’re looking for a wall-mounted heat pump that offers exceptional performance, cleaner air, and smart energy efficiency, the SHARP ZU1 24,000 BTU is the perfect choice. AirGreen is here to ensure you get the best system, the best installation, and the best service—every step of the way.
Contact us today to learn more about the SHARP ZU1 and how it can transform your home’s comfort and energy efficiency.
The unit on this job, in figures
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 big day, step by step
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 would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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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Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
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).