Installation of a Sharp ZU1 Mini Split in Saint-Eustache
Discover how AirGreen transformed a Saint-Eustache home with the Sharp ZU1 mini split, offering eco-friendly heating and cooling, even in extreme conditions, with top-notch air purification!
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.
A Cool Solution for All Seasons: The Perfect HVAC Installation for North Shore Homes
At AirGreen, we pride ourselves on providing efficient, reliable, and eco-friendly HVAC solutions to meet the diverse needs of homeowners across Greater Montreal. Recently, we had the opportunity to install the cutting-edge Sharp ZU1 Mini Split heat pump for a client in Saint-Eustache on the North Shore. This project is a perfect example of how innovative technology and smart installation techniques can transform a home’s comfort level, even in extreme weather conditions.
The Challenge: Creating Comfort in Quebec’s Harsh Climate
Our client’s home in Saint-Eustache, a beautiful residential area located in the northern part of Montreal, required a robust and efficient HVAC solution. Winters in Quebec can be incredibly harsh, with temperatures dropping well below freezing, sometimes as low as -27°C. The homeowners wanted a system that could provide reliable heating in the coldest months, as well as cooling during the warm summer days.
After assessing the home’s layout and the client's specific needs, we recommended the Sharp ZU1 Mini Split, a model known for its high efficiency and performance in extreme climates.
Why the Sharp ZU1 Mini Split Was the Best Choice
The Sharp ZU1 Mini Split is a highly versatile unit with both cooling and heating capacities of 18,000 BTU. This system not only provides exceptional comfort throughout the year but is also energy-efficient, with a SEER rating of 24.0, making it one of the most cost-effective choices for homeowners.
One of the standout features of this model is its ability to function efficiently in temperatures as low as -27°C, making it perfect for Quebec’s challenging winters. Additionally, the R-32 refrigerant used in the unit is more environmentally friendly, reducing the system's impact on the planet while also being more efficient than older refrigerants like R-22.
Installation Day: A Seamless Process
Our expert team arrived in Saint-Eustache ready to install the Sharp ZU1 system. The installation process began with carefully selecting the best location for the indoor and outdoor units. For the indoor unit, we chose a spot in the living area where the air distribution would be most effective. The indoor unit, measuring 41.42 x 9.80 x 12.44 inches, was sleek and unobtrusive, blending well with the home’s décor while ensuring optimal air circulation.
The outdoor unit, slightly larger at 33.47 x 13 x 27.94 inches, was installed in a shaded area to protect it from the elements and to further enhance energy efficiency. We also ensured that the sound pressure levels were kept to a minimum, with the indoor unit producing between 25 to 49 dB(A) and the outdoor unit running at 52 dB(A)—both well within the comfort range for homeowners.
Optimizing Performance with Sharp’s Advanced Technology
The Sharp ZU1 Mini Split comes packed with advanced features that make it a market leader. One of the standout technologies is the Plasmacluster Ion Technology, which ensures that the air inside the home remains pure and free from contaminants like mold, bacteria, and allergens. This feature was especially appealing to our client, who wanted an HVAC system that not only heats and cools but also improves indoor air quality.
Moreover, the Coanda airflow control ensures that the air is distributed evenly throughout the room, preventing cold drafts in the winter and overly concentrated cooling during the summer months. This technology allows for a more uniform temperature distribution, which is a significant comfort upgrade for homes with multiple rooms.
Eligible for the LogisVert Grant
One of the major benefits of installing the Sharp ZU1 Mini Split is that it is eligible for the LogisVert grant by Hydro-Québec, providing up to $2,640 in financial assistance. This grant is part of Quebec’s initiative to encourage the adoption of energy-efficient technologies, helping homeowners reduce their carbon footprint and energy bills.
By opting for this system, our client not only improved their home’s comfort and energy efficiency but also benefited from significant financial savings thanks to this government incentive.
Built for Longevity: Warranty and Reliability
We understand that investing in a new HVAC system is a significant decision, which is why the Sharp ZU1 comes with an industry-leading warranty package. This includes a 10-year warranty on the compressor, parts, and labor, providing homeowners with peace of mind that their system is built to last. We also offered an extended 10-10-10 warranty, ensuring that the system will be covered for an entire decade.
The combination of R-32 refrigerant, Plasmacluster technology, and Coanda airflow control makes the Sharp ZU1 Mini Split one of the best options on the market, and the added security of such a comprehensive warranty makes it a sound investment for any homeowner.
The Result: A Satisfied Homeowner and a Comfortable Home
After the installation, our client was thrilled with the results. The Sharp ZU1 delivered quiet, efficient cooling during the summer heat and promises to provide reliable warmth during the cold Quebec winters. The indoor air quality has also significantly improved, thanks to the Plasmacluster technology, making the home a more comfortable and healthier place to live.
At AirGreen, we are committed to delivering top-notch service and high-performance HVAC systems to homeowners across Montreal, Laval, Longueuil, the North Shore, and the South Shore. With installations like this one in Saint-Eustache, we continue to raise the bar in providing eco-friendly, efficient, and reliable heating and cooling solutions.
Why Choose AirGreen?
When it comes to choosing the right HVAC system for your home, it’s essential to work with a company that understands the unique challenges of Quebec’s climate. At AirGreen, we offer expert advice, high-quality products, and professional installation services. Our team is dedicated to helping you find the best system to meet your needs while maximizing energy efficiency and comfort.
If you’re considering upgrading your HVAC system or installing a new one, don’t hesitate to reach out to us. Whether you need a mini split, central heat pump, or any other heating and cooling solution, we’re here to help. With our expertise and commitment to excellence, you can trust us to keep your home comfortable all year round.
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
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Wall-mounted or multi-zone: how do I choose?
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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).