Installation of a SHARP ZU1 Wall-Mounted Heat Pump in LaSalle
Experience cleaner air, energy savings, and year-round comfort with our SHARP ZU1 installation in LaSalle. See how AirGreen delivers comfort in every season.
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.
Greener Comfort with Cutting-Edge Technology in LaSalle
At AirGreen, we take pride in providing top-notch heating and cooling solutions tailored for Montreal's unique climate. Recently, we had the privilege of completing an exceptional installation of a SHARP ZU1 24,000 BTU Wall-Mounted Heat Pump in LaSalle. This advanced system, capable of delivering superior comfort in extreme cold as low as -27°C, now stands proudly as a testament to our expertise, innovation, and customer satisfaction.
A Modern Solution for Year-Round Comfort
Montreal winters are unforgiving, and summers can bring sweltering heat. The homeowners in LaSalle faced these challenges year after year, struggling to find a solution that balanced performance, energy efficiency, and air quality. After assessing their needs and space, we recommended the SHARP ZU1 24,000 BTU heat pump – a true gem in the world of ductless heating and cooling.
Why the SHARP ZU1?
The SHARP ZU1 is not just any heat pump. Ranked #1 in our 2025 Wall-Mounted Heat Pump Guide, it stands out due to its remarkable features:
- Heating Capacity: Maintains full efficiency down to -27°C – perfect for our harsh winters.
- Cooling Capacity: 24,000 BTU ensures the home remains cool during scorching summer days.
- Efficiency: A high 22.0 SEER rating guarantees energy savings without compromising performance.
- New R-32 Refrigerant: Environmentally friendly, reducing energy consumption by up to 10%.
- 10-10-10 Warranty: 10 years on the compressor, parts, and labor, offering unparalleled peace of mind.
Behind the Scenes: The Installation Process
Our expert team at AirGreen began by carefully planning the placement of the outdoor compressor and the indoor wall-mounted unit. The homeowner was particularly concerned about ensuring maximum airflow and maintaining the aesthetics of their property. Here’s how we executed this installation to perfection:
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Outdoor Unit Placement
The SHARP outdoor unit was securely mounted on a specialized stand on the roof. We ensured proper insulation with robust anti-vibration mounts, reducing noise levels to a mere 53 dB(A). The stand also prevents snow accumulation – a must in Montreal winters. -
Indoor Wall-Mounted Unit
The sleek 41.42 x 9.80 x 12.44-inch indoor unit was installed strategically to maximize the Coanda airflow effect. This innovative feature redirects air along walls and ceilings, ensuring uniform temperature distribution without uncomfortable drafts. -
Piping and Electrical Work
Using high-quality 1/4 - 3/8 pipes and a clean 220V connection, we optimized the system’s performance. The refrigerant used, R-32, ensures a smaller environmental footprint while enhancing cooling and heating efficiency. -
Testing and Configuration
After installation, we meticulously tested the system to ensure every function worked flawlessly. The homeowner was particularly impressed with the unit’s quiet operation – the indoor sound levels range between 25 and 49 dB(A).
Standout Features That Make the SHARP ZU1 Exceptional
1. Plasmacluster Technology: Cleaner, Healthier Air
One of SHARP's standout innovations, Plasmacluster Technology, sets this heat pump apart. By releasing positive and negative ions, it actively eliminates airborne mold, viruses, allergens, and odors. The homeowners loved this added health benefit, especially since it ensures cleaner air for their family year-round.
2. Coanda Airflow: Comfort Without Compromise
With the Coanda effect, the SHARP ZU1 efficiently directs airflow along surfaces, avoiding direct drafts. Whether cooling in summer or heating in winter, it creates a comfortable, harmonized temperature throughout the home.
3. Built for Quebec Winters: Hot Gas Pipe Defrosting
Quebec’s winter temperatures demand reliable technology. SHARP’s Hot Gas Pipe system prevents ice buildup on the outdoor unit, enabling consistent operation even when the thermometer drops to -27°C.
4. WiFi Connectivity: Smart Control Anytime, Anywhere
The SHARP ZU1 comes equipped with WiFi control, allowing homeowners to monitor and adjust their system using a smartphone app. From tracking energy consumption to setting customized schedules, the app ensures total control at their fingertips.
5. Energy Efficiency and Environmental Responsibility
With its use of R-32 refrigerant, the SHARP ZU1 reduces greenhouse gas emissions and improves energy efficiency. This not only helps protect the environment but also lowers energy bills – a win-win for both the homeowner and the planet.
Eligibility for the LogisVert Grant
We were thrilled to inform the homeowners that their new SHARP ZU1 Wall-Mounted Heat Pump qualifies for the $2,688 LogisVert grant offered by Hydro-Québec. This government program encourages homeowners to switch to energy-efficient solutions, making the SHARP ZU1 an even smarter investment.
Why Choose AirGreen?
At AirGreen, we go beyond installations – we build trust. Our reputation across Montreal, Laval, Longueuil, the North Shore, and the South Shore is built on:
- Expert Advice: We carefully assess each home’s needs to recommend the best HVAC solutions.
- Professional Installation: With a focus on precision, durability, and efficiency, we ensure every system performs at its peak.
- After-Sales Support: Our 10-10-10 warranty guarantees peace of mind for years to come.
Whether you’re looking for energy savings, improved air quality, or year-round comfort, AirGreen and SHARP have you covered.
The Final Result: A Home Ready for Any Season
With the installation of the SHARP ZU1 Wall-Mounted Heat Pump, this LaSalle home now enjoys:
- Comfort: Reliable heating and cooling, even in extreme weather.
- Savings: Lower energy bills thanks to advanced efficiency.
- Health: Clean, purified air with Plasmacluster technology.
- Convenience: Smart control through WiFi connectivity.
The homeowners couldn’t be happier. And at AirGreen, nothing gives us greater satisfaction than knowing we’ve delivered another solution that enhances comfort, health, and efficiency.
Ready to Transform Your Home with AirGreen?
If you’re looking for a reliable, efficient, and eco-friendly heating and cooling solution, the SHARP ZU1 Wall-Mounted Heat Pump is the perfect choice. Contact AirGreen today and discover how we can make your home more comfortable, efficient, and healthier.
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).