Installation of a SHARP ZU1 Ductless Mini Split in Hochelaga
Explore our latest SHARP ZU1 Mini Split installation in Hochelaga, showcasing extreme cold performance, energy efficiency, and health-enhancing Plasmacluster technology.
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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
Transforming a Hochelaga Residence with Cutting-Edge Comfort
At AirGreen, we take pride in enhancing the quality of living for our clients with state-of-the-art HVAC solutions. Our latest installation, completed in the vibrant neighborhood of Hochelaga, is a testament to our commitment to comfort and efficiency. In this project, we installed the SHARP ZU1 Ductless Mini Split, an 18,000 BTU powerhouse designed to deliver optimal heating and cooling, even in Montreal’s harshest conditions.
Why the SHARP ZU1 Stands Out
Our client wanted a high-performance system that wouldn’t just blend into their space but also provide exceptional climate control throughout the year. Enter the SHARP ZU1, a model that perfectly fits the bill with its extreme cold weather capabilities, whisper-quiet operation, and innovative features like the Plasmacluster technology.
Key Features of the SHARP ZU1 Mini Split:
- Cooling Capacity: 18,000 BTU, ensuring a perfectly chilled indoor environment, even during the peak summer heat.
- Heating Capacity: Reliable heating performance down to -27°C, which is ideal for Montreal’s brutal winters.
- Energy Efficiency: With an impressive 24.0 SEER rating, this mini split significantly lowers energy bills.
- Noise Levels: A remarkably quiet system, operating at only 25 dB(A) indoors, making it perfect for peaceful living spaces.
- Plasmacluster Technology: This feature neutralizes airborne bacteria, viruses, and odors, creating a healthier home environment.
The Hochelaga Installation Story
Our team was thrilled to take on this project in the heart of Hochelaga, an area known for its blend of historic charm and modern vitality. The installation was carried out seamlessly, thanks to meticulous planning and a deep understanding of the neighborhood's unique architectural elements. We ensured the outdoor unit was strategically placed to minimize visual impact while maximizing performance.
Challenges We Overcame
Working in an older building comes with its set of challenges. The exposed brick exterior, while visually stunning, required careful handling to avoid any damage. We used specialized mounting brackets to securely fasten the outdoor unit, ensuring stability and efficient airflow.
Moreover, routing the piping along the building's exterior without detracting from the aesthetics was crucial. We achieved this by custom-fitting covers that blended effortlessly with the existing structure, a small yet significant detail that left our client impressed.
Maximum LogisVert Grant Eligibility
One of the most exciting aspects of this installation is that the SHARP ZU1 qualifies for the highest Hydro-Québec LogisVert grant in its category. Our client can receive a substantial $2,640 rebate, making this energy-efficient upgrade not only eco-friendly but also financially rewarding.
Technical Details of the SHARP ZU1
To give our more technically inclined readers a closer look, here are some key specifications of the SHARP ZU1:
- Interior Unit Dimensions: 41.42 x 9.80 x 12.44 inches, compact yet powerful.
- Exterior Unit Dimensions: 33.47 x 13 x 27.94 inches, designed for efficiency and space-saving.
- Refrigerant: R-32, an environmentally friendly refrigerant that reduces global warming potential.
- Voltage: 220V, ensuring consistent and reliable performance.
- Warranty: A robust 10-year warranty on the compressor, parts, and labor for complete peace of mind.
Client Satisfaction and Our Commitment
The homeowner expressed immense satisfaction with the new system, noting the difference in air quality and the nearly silent operation. The SHARP ZU1 has already begun to transform their indoor experience, providing unparalleled comfort and efficiency.
The Plasmacluster Advantage
One of the standout features of the SHARP ZU1 is the Plasmacluster technology, a unique air purification system that releases positive and negative ions to break down pollutants. This ensures that the air inside the home is not just temperature-controlled but also clean and healthy.
Interested in Upgrading Your HVAC System?
If you're considering a similar upgrade, we invite you to contact us for a free consultation. Our team is well-versed in customizing solutions that meet the specific needs of homes in Montreal, Laval, Longueuil, and the surrounding areas. Plus, we handle all the paperwork for energy rebates, making your experience as smooth and hassle-free as possible.
Our work in Hochelaga is a shining example of what we can achieve together. From personalized design to flawless execution, AirGreen is your go-to partner for high-quality HVAC installations.
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).