Installation of Two SHARP ZU1 Mini Split Heat Pumps in Laval
Experience the comfort of a dual SHARP ZU1 heat pump setup in Laval, designed to keep your home cozy even at -27°C. Read how AirGreen makes it happen!
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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
Twice the Power, Twice the Comfort: Our Laval Installation Story
At AirGreen, we know that comfort isn’t one-size-fits-all, which is why we tailor our HVAC solutions to fit our customers’ unique needs. In our latest project in Laval, we installed not one, but two SHARP ZU1 Mini Split Heat Pumps. With this dual setup, our clients are now equipped to enjoy superior climate control year-round, no matter what Mother Nature throws their way.
Meeting a Unique Challenge with a Custom Solution
Our Laval clients came to us with a clear challenge: their spacious home needed a powerful, efficient, and versatile heating and cooling system that could keep up with the fluctuating Quebec climate. It wasn’t just about surviving the sweltering heat of summer or enduring the bone-chilling winter temperatures that can drop as low as -27°C; it was about thriving in every season.
After a detailed assessment of the home’s layout and the client’s expectations, we recommended installing two separate 18,000 BTU SHARP ZU1 Mini Split Heat Pumps. This configuration would not only ensure optimal comfort but also provide strategic climate control in different parts of the house, making the entire system more efficient and adaptable.
Why the Dual SHARP ZU1 Setup Was the Perfect Fit
1. Exceptional Energy Efficiency The SHARP ZU1 models are known for their 24.0 SEER efficiency rating, which means they use less energy while delivering exceptional performance. By installing two units, we were able to distribute cooling and heating more evenly across the home, reducing energy waste and creating a more balanced indoor environment. Both units use eco-friendly R-32 refrigerant, further minimizing the carbon footprint and making this an environmentally responsible choice.
2. Extreme Cold Weather Performance Laval winters can be brutal, but the SHARP ZU1’s Hot Gas Pipe System ensures that both units can deliver consistent heating even when temperatures plummet to -27°C. This technology prevents the outdoor units from freezing over, guaranteeing that our clients will stay warm and cozy no matter how harsh the weather gets.
An Inside Look at Our Installation Process
Site Preparation and Setup
For this dual installation, our team took a meticulous approach. We began by selecting two optimal locations for the outdoor units. Placement is key for heat pumps, and we made sure to mount each unit securely on elevated, weather-resistant brackets. This elevation is crucial to protect the units from snow accumulation and to facilitate efficient drainage. To keep noise levels to a minimum, we used vibration-dampening pads that ensure whisper-quiet operation, even during peak performance.
Routing and Concealment
The next step involved routing the refrigerant lines and electrical wiring. In a project like this, attention to detail is everything. We used durable, UV-resistant conduit to conceal and protect the lines, maintaining the home’s exterior aesthetics while ensuring long-term durability. We also applied extra insulation to the piping to maximize energy efficiency and prevent heat loss in the winter.
Indoor Unit Placement for Maximum Comfort
For the indoor units, we strategically positioned them to optimize airflow and ensure every corner of the home benefits from even heating and cooling. The sleek design of the SHARP ZU1 units (41.42 x 9.80 x 12.44 inches) allowed us to integrate them seamlessly into the home’s interior.
Each unit features Plasmacluster Ion Technology, which actively purifies the air by neutralizing airborne bacteria, viruses, and odors. This was a significant bonus for our clients, who wanted not just temperature control but also better indoor air quality for their family. The dual system means that each zone can operate independently, giving the homeowners complete control over their indoor climate.
Smart Home Features and User Convenience
Both SHARP ZU1 units come equipped with built-in WiFi, offering seamless integration with modern smart home systems. Our clients can now control each heat pump using a simple app on their smartphone, whether they’re adjusting the temperature, setting timers, or monitoring energy usage. The system also supports voice commands via Amazon Alexa and Google Assistant, making it as user-friendly as it is efficient.
Taking Advantage of Hydro-Québec’s Generous Grant
One of the highlights of this project was the substantial savings our clients received through the LogisVert Grant from Hydro-Québec. Both SHARP ZU1 heat pumps qualify for the highest rebate in the 18,000 BTU category, amounting to $2,640 per unit. That’s a total of $5,280 in grants, making this installation not only a smart environmental choice but also a financially savvy one.
The AirGreen Advantage: Quality and Reliability
At AirGreen, we pride ourselves on delivering more than just HVAC installations; we deliver peace of mind. Both SHARP ZU1 units are backed by an extensive 10-year warranty on the compressor, parts, and labor, ensuring our clients have long-term protection for their investment. Our team of certified technicians follows rigorous installation protocols, from precision calibration to post-installation performance testing, to make sure everything is running smoothly.
Customer Satisfaction and Feedback
Our Laval clients were thrilled with the outcome. They appreciated the quiet operation of the indoor units, which have sound pressure levels as low as 25 dB(A), akin to the sound of a gentle whisper. They also loved the system’s versatility, allowing them to fine-tune the climate in each zone of their home without worrying about energy waste.
“We’ve never felt so comfortable in our own home,” our clients told us. “The air feels cleaner, and the heating is consistent even on the coldest days. AirGreen made the whole process smooth and stress-free!”
Final Thoughts: Is the SHARP ZU1 Right for You?
If you’re considering upgrading your home’s heating and cooling system, the SHARP ZU1 Mini Split Heat Pump is a game-changing option, especially if you live in an area with extreme weather conditions like Laval. And if you’re looking to maximize comfort and efficiency across a larger space, a dual-unit setup like the one we completed for our Laval clients could be the perfect solution.
Our team at AirGreen is ready to bring this level of expertise and care to your home. We handle every step of the process, from initial consultation and grant assistance to installation and ongoing support. Trust us to keep your home comfortable and your energy bills low.
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).