Installation of a SHARP ZU1 Mini Split Heat Pump in Saint-Laurent
Experience the pinnacle of comfort with our SHARP ZU1 installation in Saint-Laurent. With heating down to -27°C and whisper-quiet operation, it’s efficiency redefined.
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.
Delivering Unmatched Comfort and Efficiency in Extreme Conditions
When our team at AirGreen took on this exciting project in Saint-Laurent, we knew we were about to make a significant difference in the lives of our customers. The task? To install a SHARP ZU1 Mini Split Heat Pump, a system that promises superior efficiency, even in the coldest of winters, with a heating capacity rated for performance as low as -27°C. Here’s a peek into how we ensured our client received the ultimate comfort and energy efficiency that SHARP technology offers.
The Ultimate Heating and Cooling Solution
Choosing the 18,000 BTU SHARP ZU1 Mini Split Heat Pump was a strategic decision aimed at combining cutting-edge technology with robust performance. Designed to thrive in the harsh Canadian climate, this unit doesn’t just deliver heating and cooling but also ensures that air quality remains impeccable, thanks to SHARP’s proprietary Plasmacluster Ion technology.
Key Features of the SHARP ZU1 Mini Split Heat Pump
- Cooling Capacity: An impressive 18,000 BTU, perfect for larger spaces that need efficient cooling during scorching summers.
- Heating Capacity: Operates efficiently at temperatures as low as -27°C, making it ideal for Saint-Laurent’s coldest days.
- Energy Star® Certified: Achieves an exceptional 24.0 SEER, which translates to massive energy savings.
- Integrated WiFi Control: Offers complete temperature management from the convenience of your smartphone.
- Quiet Operation: Produces minimal noise, with an interior sound pressure level as low as 25 dB(A)—about as quiet as a whisper.
A Unique Installation Setting
Our installation site in Saint-Laurent presented a few unique challenges. The space, a lovely residential dining room, needed seamless integration of the indoor unit to blend with the home’s aesthetic. Given the sleek design of the SHARP ZU1, it was a perfect fit, adding a touch of modernity while staying unobtrusive.
We mounted the interior unit, with precise attention to the room’s layout, ensuring optimal air distribution. The dimensions of the indoor unit, measuring 41.42 inches in length, 9.80 inches in depth, and 12.44 inches in height, were carefully considered. The goal was to ensure that our installation enhanced the space without compromising comfort.
Tackling the Saint-Laurent Winters with SHARP’s Innovation
The SHARP ZU1 Mini Split is engineered for homes that face the harshest winters. Saint-Laurent is no stranger to frigid temperatures, and with this unit’s ability to heat effectively at -27°C, our clients can rest easy knowing that they are well-equipped for the coldest nights. The innovative HOT GAS PIPE system ensures the exterior unit doesn’t freeze, maintaining performance efficiency.
Why SHARP’s Plasmacluster Ion Technology Stands Out
Indoor air quality is crucial, and SHARP’s Plasmacluster technology excels at purifying the air. By emitting positive and negative ions, the system neutralizes airborne bacteria, viruses, and mold, contributing to a healthier living environment. In our Saint-Laurent project, this was a significant bonus, especially for homeowners mindful of air quality.
Maximizing Energy Savings
In addition to delivering exceptional comfort, the SHARP ZU1 system is engineered to be highly energy-efficient. With a SEER rating of 24.0, this mini split minimizes energy consumption, reducing electricity bills. The system’s inverter technology also adapts in real-time to the room's temperature needs, eliminating energy waste.
A Quick Look at the Technical Specifications
- Piping Dimensions: 1/4 inch for liquid and 3/8 inch for gas, ensuring efficient refrigerant flow.
- Refrigerant: Environmentally friendly R-32, which has a lower global warming potential compared to older refrigerants.
- Sound Pressure Levels: Only 52 dB(A) outdoors and 25-49 dB(A) indoors, making it whisper-quiet in operation.
- Voltage: 220V, perfect for residential setups.
Securing the Highest LogisVert Grant
One of the most exciting aspects of this installation was securing the $2,640 LogisVert Grant from Hydro-Québec. This grant is the highest available for heat pumps in the 18,000 BTU category, emphasizing the unit’s top-tier performance and energy efficiency. For homeowners looking to make environmentally conscious choices, this grant is a compelling incentive.
Our Expertise at Work
At AirGreen, we pride ourselves on delivering expert installation and service. For this project, we meticulously planned every detail, from the location of the indoor and outdoor units to the precise routing of refrigerant lines. Our technicians ensured a flawless setup, paying special attention to the soundproofing and placement of the exterior unit, measuring 33.47 inches in length, 13 inches in depth, and 27.94 inches in height. This careful consideration means our client enjoys a noise-free and efficient heating and cooling experience.
Customer Satisfaction is Our Priority
We don’t just install equipment; we provide peace of mind. The SHARP ZU1 system comes with a 10-year warranty on the compressor, parts, and labor, ensuring long-term reliability. Our customers in Saint-Laurent can feel confident that their investment is protected and that we’ll be there for any support or maintenance needs.
What Sets AirGreen Apart?
- Experienced Installers: Our team is trained to handle complex installations with precision.
- Commitment to Quality: We use only the best materials and the latest technology for optimal results.
- Tailored Solutions: Every home is unique, and we customize our installations to fit each client’s needs perfectly.
Why Choose AirGreen for Your Next HVAC Project?
Our Saint-Laurent installation is just one example of our commitment to excellence. We go above and beyond to ensure that every project not only meets but exceeds expectations. From the initial consultation to the final inspection, our clients receive unparalleled service and support.
If you’re considering upgrading your HVAC system, give us a call or visit our website to learn more. We’re here to provide efficient, eco-friendly solutions tailored to your home.
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.
Which type of equipment for your project?
Pick what looks like your need.
Four mistakes we do not make
Flip each card to see what we do instead.
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.
Useful pages for what comes next
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.
Tell us about your house. We come and see it for free.
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).