Installation of a SHARP ZU1 18,000 BTU Wall-Mounted Heat Pump in Rosemère
See how AirGreen transformed a Rosemère home with the SHARP ZU1 heat pump. Superior comfort, cleaner air, and a $2,640 grant—find out why it’s perfect for Quebec winters!
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.
Cutting-Edge Comfort Meets Eco-Friendly Innovation
At AirGreen, we take immense pride in every HVAC installation we perform, and our latest project in Rosemère was no exception. For this installation, we introduced the SHARP ZU1 18,000 BTU Wall-Mounted Heat Pump, a perfect blend of advanced technology, eco-conscious design, and year-round comfort. Let us take you through the highlights of this exceptional project and the remarkable features of the SHARP ZU1 system.
The Challenge: Enhancing Home Comfort in Quebec’s Harsh Climate
Rosemère is known for its picturesque homes, surrounded by greenery and tranquil streets. However, Quebec’s unforgiving winters and humid summers demand a heating and cooling system capable of handling extreme conditions. The homeowner sought an efficient, durable, and eco-friendly solution, and the SHARP ZU1 fit the bill perfectly.
Why the SHARP ZU1 Stands Out
Energy Efficiency Meets Sustainability
The SHARP ZU1 uses the groundbreaking R-32 refrigerant, which not only delivers superior cooling and heating performance but also significantly reduces its environmental footprint. This refrigerant is designed to meet the 2025 energy efficiency standards, ensuring that homeowners benefit from lower energy bills and a system that’s kinder to the planet.
- SEER Rating: 24.0 – One of the highest in its category.
- Heating Capacity: Operates efficiently even at frigid temperatures as low as -27°C.
- Eco-Friendly Refrigerant: R-32 offers a 10% reduction in energy consumption compared to traditional refrigerants.
Unmatched Heating Performance in Winter
With Quebec winters reaching extreme lows, the SHARP ZU1 excels where many heat pumps fail. Its Hot Gas Pipe System prevents outdoor compressors from freezing, ensuring reliable heating even in -27°C weather. This technology shortens defrost cycles, conserving indoor warmth and enhancing overall comfort.
Installation Highlights: Attention to Every Detail
Our team worked diligently to install the system with precision. The project involved:
- Strategic Placement: The indoor unit was mounted in the main living space, ensuring optimal airflow across the home. Its sleek dimensions (41.42" x 9.80" x 12.44") blended seamlessly with the décor.
- Exterior Unit Setup: The outdoor unit, compact yet robust (33.47" x 13" x 27.94"), was carefully positioned to maximize efficiency while minimizing noise.
- WiFi Integration: The heat pump was connected to the homeowner's WiFi, enabling remote control and real-time performance monitoring via the SHARP app.
- Refrigerant Lines and Drainage: We installed 1/4" and 3/8" pipes, along with a robust drainage system, to ensure smooth operation even during peak usage.
Features That Make the SHARP ZU1 a Game-Changer
Plasmacluster Technology: Breathe Cleaner Air
This proprietary technology from SHARP sets the ZU1 apart. Plasmacluster ions purify indoor air by eliminating:
- Airborne viruses and bacteria
- Mold and allergens
- Unpleasant odors, including tobacco and cooking smells
The result? A healthier, more comfortable living environment for the entire family.
Coanda Airflow: Uniform Comfort in Every Corner
The SHARP ZU1 employs the Coanda Effect, which directs airflow along walls and ceilings to ensure even temperature distribution. Whether cooling in the summer or heating in the winter, this system avoids uncomfortable drafts while reaching every nook of the home.
- Long-Distance Airflow: The diffuser flap delivers air up to 15 meters, ensuring consistent comfort throughout the house.
- 4-Way Sweeping: Horizontal and vertical airflow adjustments provide tailored comfort for any room configuration.
Grant Eligibility: A Smart Investment
One of the most exciting aspects of this installation is its eligibility for the LogisVert Grant by Hydro-Québec. At $2,640, this is the highest grant offered for an 18,000 BTU system in Quebec, making the SHARP ZU1 not only a top-tier choice for performance but also a highly cost-effective investment.
Designed for Quiet, Reliable Operation
Noise can be a significant concern with HVAC systems, but the SHARP ZU1 excels in this regard:
- Interior Unit Sound Levels: As low as 25 dB(A), quieter than a whisper.
- Exterior Unit Sound Levels: Just 52 dB(A), ensuring minimal disruption for the homeowner and neighbors.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we go beyond just installations. Our team takes the time to understand your specific needs and recommend the best solutions for your home. From the initial consultation to the final touches, we ensure:
- Professional Expertise: Our technicians are highly trained and meticulous.
- Top-Tier Products: We only install systems from trusted brands like SHARP.
- Unparalleled Support: We offer comprehensive warranties (10 years on parts, labor, and the compressor) for complete peace of mind.
Conclusion: A Greener, More Comfortable Home
This installation in Rosemère demonstrates how the SHARP ZU1 Wall-Mounted Heat Pump is the ultimate solution for homes in Quebec. With its energy-efficient operation, cutting-edge features, and robust performance in extreme temperatures, it’s no wonder this system has become a homeowner favorite.
If you’re looking to upgrade your HVAC system, AirGreen is here to help. Contact us today to learn how we can transform your home into a haven of comfort and 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).