Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Outremont
See how AirGreen transformed a home in Outremont with the SHARP ZU1 heat pump—combining cutting-edge tech, energy savings, and ultimate comfort. Read more to learn why it’s the best choice!
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 Seamless Blend of Comfort and Efficiency in the Heart of Outremont
At AirGreen, we pride ourselves on delivering tailored HVAC solutions that combine cutting-edge technology with unparalleled craftsmanship. Recently, we had the pleasure of installing a SHARP ZU1 18,000 BTU Wall-Mounted Heat Pump in a charming home in Outremont, a project that perfectly exemplifies our commitment to quality and attention to detail.
Why the SHARP ZU1?
The SHARP ZU1 is not your average mini-split heat pump. Known for its impressive performance and innovative features, this model is the pinnacle of reliability and efficiency, capable of maintaining comfortable temperatures even in the harshest Quebec winters, down to a bone-chilling -27°C. With its 24.0 SEER rating, the ZU1 stands out as one of the most energy-efficient options on the market, making it a perfect fit for environmentally conscious homeowners in Outremont.
Key Features of the SHARP ZU1
- Plasmacluster Technology: Revolutionary air purification that eliminates bacteria, viruses, and mold.
- Coanda Airflow Control: Ensures uniform temperature distribution without uncomfortable drafts.
- Energy Efficiency: Equipped with the new R-32 refrigerant, reducing greenhouse gas emissions and lowering energy consumption by approximately 10%.
- Silent Operation: With an interior sound level as low as 25 dB(A), it’s quieter than a whisper.
- Smart Connectivity: WiFi-enabled for remote control and real-time monitoring via a smartphone app.
The Installation Process
Tailored to the Home’s Architecture
The residence in Outremont presented a unique set of challenges due to its classic architectural design. The indoor unit was strategically placed above a doorway, maximizing airflow without interfering with the home’s aesthetic. This placement ensures that warm or cool air is evenly distributed across the room, leveraging the Coanda effect for optimal comfort.
Precision and Attention to Detail
Every aspect of the installation was meticulously planned:
- Mounting the Interior Unit: Using precise measurements, we ensured the unit was perfectly leveled and securely fastened. The result? A sleek, unobtrusive addition that complements the room’s décor.
- Exterior Unit Placement: Positioned to minimize noise and maximize efficiency, the outdoor unit was installed with proper clearance to ensure optimal performance during Quebec’s icy winters.
- Refrigerant Line Connection: High-quality 1/4 - 3/8-inch piping was used to connect the indoor and outdoor units, with insulation to prevent energy loss and condensation.
- Drainage System: Multiple drainage holes on the outdoor unit ensure efficient water evacuation, preventing freezing in winter months.
Why This Installation Stands Out
Eligible for Hydro-Québec's LogisVert Grant
One of the most exciting aspects of this installation is that the SHARP ZU1 qualifies for the $2,640 LogisVert Grant, the highest subsidy available for an 18,000 BTU heat pump in Quebec. This substantial incentive makes the ZU1 an even more attractive choice for homeowners looking to upgrade their HVAC systems.
Eco-Friendly and Budget-Friendly
Thanks to its R-32 refrigerant and high efficiency, the SHARP ZU1 not only reduces the home’s carbon footprint but also significantly lowers energy bills. It’s a win-win for both the environment and the homeowner’s wallet.
Enhancing Everyday Comfort
The homeowners have already noticed a remarkable difference in their indoor air quality, thanks to the Plasmacluster technology, which neutralizes allergens and odors. Coupled with the system’s whisper-quiet operation, the SHARP ZU1 creates a serene and comfortable living environment.
Our Commitment to Excellence
At AirGreen, we understand that every home is unique. That’s why we take the time to assess each project’s specific needs, ensuring that our installations not only meet but exceed expectations. From initial consultation to final testing, we prioritize quality, efficiency, and customer satisfaction.
Why Choose AirGreen?
- Decades of expertise in HVAC installation.
- A dedicated team of certified technicians.
- Unwavering commitment to sustainability and innovation.
- Comprehensive warranties, including 10 years on parts, labor, and the compressor for the SHARP ZU1.
Final Thoughts
This installation in Outremont showcases the perfect synergy between state-of-the-art technology and expert craftsmanship. The SHARP ZU1 is more than just a heat pump; it’s a long-term investment in comfort, efficiency, and environmental responsibility.
If you’re considering upgrading your HVAC system, the SHARP ZU1 offers unmatched performance and peace of mind. And with the generous LogisVert Grant, there’s never been a better time to make the switch.
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?
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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).