SHARP ZU1 18000 BTU Wall-Mounted Heat Pump Installed in Pierrefonds – Reliable Comfort Even in Extreme Temperatures
Professional installation of a SHARP ZU1 18000 BTU wall-mounted heat pump in Pierrefonds, optimized for Quebec’s harsh winters. High-performance R-32 unit, Plasmacluster technology, eligible for LogisVert rebate.
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 sleek and high-performance solution to tackle Pierrefonds’ harsh winters
At AirGreen, we recently completed the installation of a SHARP ZU1 18000 BTU wall-mounted heat pump in a charming residential property located in Pierrefonds, a vibrant neighbourhood in the western part of Montréal. This installation perfectly aligns with our mission to provide highly efficient, durable, and eco-friendly heating and air conditioning solutions to residents across Montréal, Laval, Longueuil, the North Shore, and the South Shore.
The choice of the SHARP ZU1 model, equipped with R-32 refrigerant and the exclusive Plasmacluster technology, reflects our client’s focus on performance and quality. The unit was precisely installed above a patio door, a strategic position that allows for even air distribution while optimizing both space and aesthetics in the room.
Why is the SHARP ZU1 18000 BTU a smart choice for Quebec homes?
Extreme cold weather performance
Quebec’s climate demands total reliability. Thanks to its outstanding heating capacity down to -27°C, the SHARP ZU1 heat pump continues to provide consistent warmth, even during the harshest cold spells. At this extreme temperature, it can still generate up to 11,200 BTU/h, which surpasses the standards of many competing models on the market.
Energy efficiency and environmental responsibility
With a SEER rating up to 24 and an HSPF of 13, this heat pump ensures significant savings on electricity costs. The R-32 refrigerant, with its low global warming potential (GWP), greatly reduces environmental impact while delivering superior energy performance compared to traditional refrigerants.
Sleek design, optimized installation
In the Pierrefonds project, our team integrated the heat pump above a glass patio door, while preserving the natural brightness and architectural coherence of the interior. The presence of a low, flat ceiling required precise positioning and reinforced mounting to ensure safety and performance. The unit blends harmoniously with the décor and operates ultra-quietly.
Plasmacluster technology: continuous air purification
The SHARP ZU1 is more than just a heating or cooling system. Thanks to Plasmacluster technology – a SHARP-exclusive patented innovation – the unit releases positive and negative ions into the air, allowing it to:
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Neutralize viruses, bacteria, and mold
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Eliminate lingering odors, such as smoke or cooking smells
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Continuously improve indoor air quality, without the use of chemicals
This system is particularly well-suited for homes with children, seniors, or occupants suffering from allergies.
Technical Specifications – SHARP ZU1 18000 BTU
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Cooling capacity: 18,000 BTU/h (range: 6,000 - 21,600 BTU/h)
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Heating capacity: 21,600 BTU/h (range: 5,500 - 25,600 BTU/h)
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Performance at -27°C: 11,500 BTU/h
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SEER / SEER 2: 24 / 24
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HSPF / HSPF 2 (Zone V): 13 / 11
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Refrigerant: R-32
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Indoor noise level: as low as 28 dB
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Additional features:
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Dehumidification mode
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Remote control with temperature sensor
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Nighttime temperature scheduling
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Automatic vertical airflow control
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Built-in Wi-Fi for remote management
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Automatic restart after power outages
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Installation process in Pierrefonds
Our client was looking for a solution that could meet the high thermal demands of their home while remaining discreet and modern. From our very first visit, we identified the most strategic wall for maximizing airflow efficiency.
Key steps of the installation:
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Thermal evaluation of the area to be serviced
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Choosing a load-bearing wall above the patio door
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Precise drilling through the exterior wall for conduit routing
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Secure mounting of both the indoor and outdoor units
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Full system calibration and performance testing
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Client training on remote usage and Wi-Fi features
The entire installation was completed in one day, with instant improvements in indoor comfort by the evening.
Available grants and incentives
This model is eligible for Hydro-Québec’s LogisVert program, which allows homeowners to receive a rebate of up to $1,704 for installing an energy-efficient heat pump system.
Our team assisted the client throughout the entire administrative process to obtain the grant, including:
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Eligibility validation
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Providing all technical documentation
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Filling out the official forms
Why choose AirGreen for your HVAC project?
Expertise and professionalism
At AirGreen, we specialize in the installation of all types of wall-mounted, central, and multi-zone heat pumps, from trusted brands such as SHARP, Fujitsu, Gree, Bosch, and Goodman. We offer quick service throughout Montréal, Laval, Longueuil, the North Shore, and the South Shore.
Transparency and support
Each project is backed by a detailed quote, outlining all available options, possible grants, and realistic execution timelines.
Warranty and peace of mind
The SHARP ZU1 heat pump installed in Pierrefonds is covered by a 10-year warranty on the compressor, 10 years on parts, and 10 years on labour, offering unparalleled peace of mind.
Conclusion
This SHARP ZU1 18000 BTU wall-mounted heat pump installation in Pierrefonds once again demonstrates AirGreen’s commitment to delivering high-performance, eco-friendly, quiet, and long-lasting HVAC solutions.
If you live in the Montréal, Laval, Longueuil areas, or elsewhere on the North Shore or South Shore, and are looking for a certified installer for a SHARP wall-mounted heat pump, trust AirGreen to provide a turnkey service with no compromise on quality.
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
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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).