Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Nun's Island
Discover how a 15,000 BTU SHARP ZU1 heat pump transformed a Nun’s Island home with sleek design, whisper-quiet performance, and $2,172 in Hydro-Québec rebates!
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.
A Stylish and Energy-Efficient Upgrade for Comfort and Sustainability
At AirGreen, we take pride in transforming living spaces across Montreal, Laval, Longueuil, North Shore, and South Shore with cutting-edge HVAC solutions. Recently, we completed the installation of a 15,000 BTU SHARP ZU1 Wall-Mounted Heat Pump in a beautiful residence located on Nun’s Island (Île-des-Sœurs). This project combined sleek aesthetics, energy efficiency, and state-of-the-art technology to create an inviting and comfortable home environment.
Project Overview: Why Choose the SHARP ZU1?
The SHARP ZU1 series heat pump is one of the most advanced HVAC systems available today. With its ultra-high efficiency rating of 24.0 SEER, it is designed to deliver exceptional performance while keeping energy costs low. The LogisVert grant offered by Hydro-Québec makes this unit even more attractive, with a substantial reimbursement of $2,172—the highest for any 15,000 BTU machine in Québec!
Key Specifications:
- Cooling Capacity: 15,000 BTU
- Heating Capacity: Operates efficiently at temperatures as low as -27°C
- Sound Levels: 23 dB (indoor) for whisper-quiet operation
- Refrigerant Type: R-32 for an eco-friendly footprint
- Warranty: 10 years on parts, labor, and compressor
- Dimensions (Interior): 41.42" x 9.80" x 12.44"
- Dimensions (Exterior): 30.72" x 10.59" x 21.25"
Installation Details: Merging Functionality with Design
Our team worked closely with the homeowner to integrate the SHARP ZU1 seamlessly into their modern kitchen and dining area. The clean lines of the interior unit blend perfectly with the minimalist décor, ensuring that the system not only performs flawlessly but also complements the home’s aesthetic.
The Process:
- Site Evaluation: Before installation, we conducted a thorough assessment of the property to determine the optimal location for the indoor and outdoor units.
- Custom Piping and Wiring: To maintain the sleek appearance of the space, we carefully concealed the piping and wiring, ensuring a neat and professional finish.
- Outdoor Unit Placement: The compact outdoor unit was strategically positioned to maximize efficiency while minimizing noise and visual impact.
- Testing and Calibration: Post-installation, the system was rigorously tested to ensure peak performance in both heating and cooling modes.
Why This Heat Pump Stands Out
Advanced Air Purification with Plasmacluster Technology
The SHARP ZU1 features Plasmacluster Technology, a patented innovation that purifies the air by neutralizing airborne viruses, mold, and allergens. This technology is perfect for improving indoor air quality, especially for families with allergy sufferers or health-conscious homeowners.
Coanda Airflow for Uniform Comfort
With its innovative Coanda effect, the SHARP ZU1 ensures even distribution of air throughout the room. Warm air is directed downward in the winter, while cool air flows upward in the summer, creating a perfectly balanced indoor climate without uncomfortable drafts.
Eco-Friendly Refrigerant
The R-32 refrigerant used in the SHARP ZU1 reduces greenhouse gas emissions by 67% compared to older refrigerants like R-410A. This aligns perfectly with Québec’s push for sustainable energy solutions.
Hydro-Québec Grant: A Smart Investment
Thanks to its exceptional efficiency, the SHARP ZU1 qualifies for the Hydro-Québec LogisVert Grant, which covers up to $2,172 of the cost. This makes it an unbeatable choice for homeowners seeking to upgrade their HVAC systems while taking advantage of government incentives.
Customer Satisfaction: A Testament to Quality
The homeowner was thrilled with the installation process and the immediate improvement in indoor comfort. The SHARP ZU1 not only met their expectations but exceeded them with its quiet operation, superior air quality, and energy savings.
Why Choose AirGreen for Your HVAC Needs?
- Expertise: Our experienced technicians ensure flawless installations every time.
- Sustainability: We prioritize eco-friendly solutions that save you money and protect the environment.
- Customer Focus: From consultation to after-sales support, we’re committed to your satisfaction.
Ready to Upgrade Your Home Comfort?
If you’re considering a heat pump installation, the SHARP ZU1 is an excellent choice for its performance, efficiency, and eco-friendliness. Contact AirGreen today to learn more about how we can transform your living space with innovative HVAC solutions.
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.
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.
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).