Installation of a SHARP BU Triple Zone Heat Pump in West-Island (Ouest de l'île)
Discover how AirGreen installed the SHARP BU Triple Zone Heat Pump in West-Island, delivering efficiency, comfort, and healthy air. Eligible for a $3,000 grant—find out more!
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The job on one screen
The unit’s data sheet
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 BU 24 0002 Zones (Dual Zone) | 25,000 | 21,200 | −27 °C: 14,600 | 2.3 | 24.0 | 11.5 | $3,000 |
| Sharp BU 24 0003 Zones (Triple Zone) | 25,000 | 21,200 | −27 °C: 14,600 | 2.3 | 24.0 | 11.5 | $3,000 |
Among the year’s most efficient according to ENERGY STAR, on top of its cold-climate certification.
Minimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.
NEEP still lists 14,600 BTU/h at a COP of 1.84 at −17 °F.
Global warming potential of R-32, versus 2,088 for R-410A (ENERGY STAR).
Among the year’s most efficient according to ENERGY STAR, on top of its cold-climate certification.
Minimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.
NEEP still lists 14,600 BTU/h at a COP of 1.84 at −17 °F.
Global warming potential of R-32, versus 2,088 for R-410A (ENERGY STAR).
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 article, chapter by chapter
Maximized Comfort and Efficiency with AirGreen’s Latest SHARP Heat Pump Installation
When it comes to home comfort in Montréal’s ever-changing climate, finding the right heating and cooling solution is a must. AirGreen’s team recently completed a Triple Zone SHARP BU Heat Pump installation in the beautiful West-Island area. With a robust 24,000 BTU compressor, this cutting-edge system powers two 9,000 BTU indoor units and a 12,000 BTU unit, delivering unmatched climate control across three distinct zones. Whether for frigid winters or scorching summers, this heat pump brings comfort, efficiency, and technology together for residents across Montreal, Laval, Longueuil, and the Rive Nord and Rive Sud.
The installation wasn’t just about comfort – the homeowners are also eligible for the generous $3,000 LogisVert Grant offered by Hydro-Québec. Furthermore, the SHARP BU series earned first place in AirGreen's 2025 Wall-Mounted Heat Pump Guide, making this unit an industry leader.
Why Was the SHARP BU Heat Pump the Perfect Fit?
The West-Island homeowners were seeking a solution that could tackle the cold Canadian winters while maintaining high efficiency and ease of use. The SHARP BU Triple Zone system, with its ability to heat efficiently even at -27°C, was a clear winner. Combining precision control for three zones with the latest advancements in air quality and energy efficiency, this installation offered top-tier performance and value.
Key Features of the Installation:
- Compressor Size: 24,000 BTU
- Indoor Units: Two 9,000 BTU units and one 12,000 BTU unit
- Efficiency: 24.0 SEER
- WiFi-Enabled: Control the system from anywhere
- Heating Capacity: Operates seamlessly at -27°C
- Sound Pressure Level: Ultra-quiet at 50 dB(A)
- Refrigerant: Eco-friendly R-32 gas
- Warranty: Industry-leading 10-10-10 coverage (Compressor, Parts, and Labor)
AirGreen’s Seamless Installation Process
The project kicked off with a detailed assessment of the client’s home, identifying the best placement for the indoor and outdoor units. Given the layout of the home, we strategically installed:
- One 12,000 BTU unit in the spacious living room, ensuring uniform air distribution across the common area.
- Two 9,000 BTU units in the bedrooms, delivering personalized comfort and energy-efficient temperature control.
The outdoor compressor was securely mounted, taking into consideration airflow and noise reduction. Our experienced technicians ensured the connections, including electrical wiring and refrigerant lines, were meticulously installed and insulated to guarantee long-lasting performance.
Why Customers Love Our Work:
- Precision: Every unit was positioned for optimal airflow and energy efficiency.
- Aesthetics: Wiring and piping were neatly concealed to maintain the home’s exterior appearance.
- Testing & Training: Post-installation, our team ran comprehensive system tests and provided the homeowners with easy-to-follow guidance on operating their new heat pump via the WiFi app.
Unmatched Indoor Air Quality with SHARP’s Plasmacluster Technology
A standout feature of the SHARP BU heat pump is its Plasmacluster technology, a game-changer in indoor air quality. By generating positive and negative ions, this system purifies the air, removing:
- Bacteria and Viruses: Neutralizes airborne pathogens to keep your family safe.
- Mold and Allergens: Significantly reduces irritants for allergy and asthma sufferers.
- Unpleasant Odors: From cooking to pets, odors are eliminated, leaving the home feeling fresh.
With Plasmacluster, the family in West-Island can enjoy not just comfortable temperatures but also clean, healthy air year-round.
Sustainability: The R-32 Advantage
At AirGreen, we are committed to providing HVAC solutions that reduce environmental impact. The SHARP BU’s use of R-32 refrigerant exemplifies this dedication. Compared to traditional refrigerants like R-410A:
- Energy Efficiency: R-32 improves heat transfer efficiency, lowering energy bills.
- Lower GWP: R-32 has a much lower Global Warming Potential, contributing to a greener planet.
- Easy Recycling: This refrigerant is easier to recover and reuse, reducing waste.
For homeowners in Montréal, choosing a system with R-32 means taking a step towards sustainability without sacrificing performance.
Year-Round Comfort: The “HOT GAS PIPE” System
The SHARP BU heat pump doesn’t falter in harsh winter conditions, thanks to the HOT GAS PIPE system. This patented technology prevents ice buildup on the outdoor unit by utilizing residual heat during defrost cycles. As a result:
- The system operates efficiently down to -27°C.
- Heating performance remains consistent even in subzero temperatures.
- Energy losses during defrost cycles are minimized, saving on operating costs.
For homeowners in West-Island, this feature ensures uninterrupted comfort, even on the coldest days.
Quiet Operation for Peace of Mind
One of the most impressive aspects of the SHARP BU heat pump is its near-silent operation. With a sound pressure level of only 50 dB(A), the system runs quietly in the background, whether heating or cooling. This makes it ideal for:
- Bedrooms
- Living spaces
- Home offices
The homeowners in West-Island can now enjoy peaceful sleep and relaxation without the hum of a loud HVAC system.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we take pride in delivering exceptional HVAC services tailored to the needs of homeowners in Montréal, Laval, Longueuil, and beyond. This installation of the SHARP BU Triple Zone Heat Pump in West-Island demonstrates our commitment to:
- Expertise: Our skilled technicians bring precision and care to every installation.
- Innovation: We offer the latest energy-efficient technologies to save you money.
- Customer Satisfaction: From start to finish, we ensure a smooth and stress-free experience.
Plus, with generous grants like the $3,000 LogisVert Grant, upgrading to a state-of-the-art heat pump has never been more affordable.
Upgrade Your Comfort with AirGreen’s Expertise
If you’re looking for a triple-zone heat pump that combines performance, energy efficiency, and indoor air quality, the SHARP BU series is the perfect choice. With advanced features like Plasmacluster technology, the HOT GAS PIPE system, and eco-friendly R-32 refrigerant, it’s designed to deliver year-round comfort while protecting the environment.
Let AirGreen bring this incredible technology to your home in Montréal, Laval, Longueuil, Rive Nord, or Rive Sud. Contact us today to schedule a consultation and experience the AirGreen difference for yourself!
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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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An on-site estimate, the right capacity, the right equipment.
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).