Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Saint-Laurent
Explore our recent SHARP ZU1 installation in Saint-Laurent! Efficient, quiet, and grant-eligible, this heat pump delivers year-round comfort. Read more to see why it’s perfect for your home.
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.
Bringing Comfort and Efficiency to Saint-Laurent Homes with Cutting-Edge HVAC Technology
At AirGreen, we pride ourselves on delivering the best HVAC solutions across Montreal, Laval, Longueuil, the North Shore, and the South Shore. One of our latest installations involved the SHARP ZU1 15,000 BTU Wall-Mounted Heat Pump in a lovely home in Saint-Laurent. This project showcases our expertise in combining technology, efficiency, and eco-friendliness to create the perfect indoor climate.
Why the SHARP ZU1 is a Game-Changer for Heating and Cooling
The SHARP ZU1 stands out as an advanced HVAC system designed for extreme conditions, offering unparalleled performance and features that make it an excellent choice for Quebec's unpredictable climate. Let’s dive into what makes this model special:
- High Efficiency: With an impressive 24.0 SEER rating, the SHARP ZU1 ensures energy savings while maintaining a consistent indoor temperature.
- Extreme Cold Performance: This heat pump operates efficiently at temperatures as low as -27°C, ensuring warmth during even the harshest winters.
- R-32 Refrigerant: Environmentally friendly and compliant with future regulations, this refrigerant reduces greenhouse gas emissions while improving efficiency by 10%.
- Quiet Operation: At just 23 dB(A) indoors, the unit provides comfort without disrupting your peace.
A Grant-Worthy Investment
The SHARP ZU1 is eligible for the LogisVert Grant, offering homeowners up to $2,172—the highest grant available for a 15,000 BTU heat pump. This makes it a financially savvy choice for eco-conscious homeowners looking to improve their energy efficiency.
The Installation Story: Precision and Care
For this project, our team was tasked with installing the SHARP ZU1 15,000 BTU unit in a Saint-Laurent residence. The homeowner sought a solution that could handle both summer heatwaves and frigid winters without compromising on energy efficiency or air quality.
Step 1: Assessment and Planning
Every installation begins with a thorough assessment of the property. In this case, we carefully measured the space and selected an optimal location for the indoor and outdoor units. The goal was to ensure maximum airflow efficiency and aesthetic integration with the home’s design.
Step 2: Precision Installation
We installed the indoor unit, featuring Plasmacluster technology, on a central wall to provide even air distribution throughout the space. This advanced system neutralizes airborne bacteria, viruses, and allergens, ensuring the family breathes clean, purified air.
For the outdoor unit, we ensured proper clearance and installed it on a custom base to minimize noise and vibrations. The multiple drainage holes and anti-corrosive coating on the unit ensure long-term durability, even in Quebec’s tough winters.
Step 3: Testing and Calibration
After installation, we tested the system extensively to ensure peak performance. The Coanda airflow control and multi-space function were calibrated to maintain consistent temperatures across multiple rooms, eliminating hot and cold spots.
Key Features Installed
- Energy Star® Certified: Ensures reduced energy consumption.
- Wi-Fi Connectivity: Allows the homeowner to monitor and adjust settings remotely using their smartphone.
- Hot Gas Pipe Technology: Prevents freezing in extreme cold conditions, ensuring reliable heating.
- Self-Cleaning Mode: Keeps the unit mold-free, enhancing its lifespan and maintaining air quality.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we don’t just install heat pumps—we tailor solutions that meet your specific needs. Here’s what sets us apart:
- Expertise: With years of experience, our technicians handle every project with precision and care.
- Customer-Centric Approach: We prioritize your comfort and satisfaction, from consultation to post-installation support.
- Eco-Friendly Solutions: We specialize in systems like the SHARP ZU1 that reduce your carbon footprint while saving you money.
Ready to Transform Your Home’s Comfort?
If you’re considering a heat pump for your home, the SHARP ZU1 is an excellent choice. Its cutting-edge technology, high efficiency, and eligibility for significant grants make it a smart investment for any homeowner.
Contact AirGreen today for a personalized consultation. Let us bring comfort, efficiency, and reliability to your home.
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).