Installation of a SHARP BU Triple Zone Heat Pump in Saint-Eustache
Discover how AirGreen installed the SHARP BU Triple Zone Heat Pump in Saint-Eustache, bringing unmatched comfort, energy savings, and cleaner air to a happy homeowner!

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.
Delivering Unmatched Comfort and Efficiency with the SHARP BU Heat Pump
At AirGreen, we pride ourselves on transforming homes with HVAC solutions that blend state-of-the-art technology and environmental responsibility. Our recent SHARP BU Triple Zone Heat Pump installation in Saint-Eustache is yet another testament to our commitment to providing exceptional comfort and energy efficiency for homeowners in Montreal, Laval, Longueuil, Rive Nord, and Rive Sud.
This unique project involved installing a 24,000 BTU compressor alongside two 9,000 BTU interior units and one 12,000 BTU interior unit. Beyond superior heating and cooling capabilities, this model has earned its spot as #1 on our 2025 Wall-Mounted Heat Pump Guide and qualifies for the impressive $3,000 LogisVert Grant offered by Hydro-Québec.
Project Overview: Precision Installation in Saint-Eustache
For this installation, the homeowners sought a solution to address multiple zones in their residence. Their main priorities were:
- Efficient Heating and Cooling for three distinct areas
- Exceptional Energy Savings without sacrificing comfort
- Low Noise Levels to maintain a peaceful environment
- Advanced Air Quality for healthier living spaces
We selected the SHARP BU Triple Zone Heat Pump as the perfect answer to their needs. With its reliable performance in extreme temperatures (down to -27°C) and 24.0 SEER efficiency, this heat pump guarantees year-round comfort and energy savings.

Why the SHARP BU Triple Zone Heat Pump is Exceptional
Cutting-Edge Features of the SHARP BU Model
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High Performance in Extreme Cold
The SHARP BU heat pump operates seamlessly in temperatures as low as -27°C, making it a reliable choice for Quebec winters. Its advanced HOT GAS PIPE system ensures uninterrupted heating performance by preventing frost buildup on the exterior unit. -
Triple Zone Flexibility
With its 3-zone configuration, this system delivers personalized comfort to different rooms:- Two 9,000 BTU units for smaller spaces like bedrooms or offices
- One 12,000 BTU unit for larger areas like living rooms or kitchens
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Advanced Air Purification: Plasmacluster Technology
SHARP's exclusive Plasmacluster innovation actively eliminates:- Viruses and Bacteria: Neutralizing airborne pathogens for a cleaner environment
- Unpleasant Odors: Tackling pet smells, smoke, and cooking odors
- Allergens: Creating a haven for allergy sufferers and those with respiratory conditions
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Whisper-Quiet Operation
With a sound pressure level of only 50.0 dB(A) for the exterior unit, this heat pump ensures a peaceful indoor environment, even during operation. -
Eco-Friendly Refrigerant: R-32
R-32 refrigerant enhances efficiency while significantly reducing the system's environmental impact. It has a lower Global Warming Potential (GWP) compared to older refrigerants like R-410A, making it a forward-thinking choice for eco-conscious homeowners.
The Installation Process: Attention to Detail
At AirGreen, every installation is a meticulous process that prioritizes quality and customer satisfaction. For this Saint-Eustache project, our team:
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Conducted a Thorough Assessment:
We examined the home’s layout to determine optimal placement for the three indoor units and the outdoor compressor. Proper zoning ensures efficient air distribution and maximum energy savings. -
Mounted the Interior Units:
Each unit was carefully installed to blend seamlessly with the home’s design. We ensured:- Strategic Positioning: Avoiding direct drafts on occupants
- Even Airflow: Utilizing SHARP’s Coanda Effect to distribute air evenly across the rooms
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Installed the Exterior Compressor:
The 24,000 BTU compressor was mounted securely outside, ensuring optimal airflow and accessibility for future maintenance. -
System Configuration and Testing:
After completing the installation, we tested the system for:- Optimal Cooling and Heating across all three zones
- Noise Levels to guarantee whisper-quiet operation
- WiFi Connectivity for seamless remote control
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Client Education:
We provided a detailed walkthrough of the heat pump’s features, including its self-cleaning function, which prevents mold growth and ensures long-term air quality.
Energy Savings and Environmental Impact
The SHARP BU Triple Zone Heat Pump isn’t just about comfort—it’s about smart energy consumption. With its 24.0 SEER rating, this system offers substantial energy savings, reducing monthly utility costs while contributing to a greener future.
Key Benefits:
- Lower energy bills thanks to advanced energy efficiency
- Reduced carbon footprint with R-32 refrigerant
- Long-term performance with a 10-year warranty on parts, labor, and the compressor

Why Homeowners in Saint-Eustache Choose AirGreen
At AirGreen, we don’t just install HVAC systems—we deliver tailored solutions that improve your quality of life. Here’s what sets us apart:
- Expertise You Can Trust: Our certified technicians are highly skilled in heat pump installations, ensuring flawless results every time.
- Commitment to Quality: We use only the industry’s most trusted brands, like SHARP, known for innovation and reliability.
- Personalized Service: Every project is customized to meet the unique needs of our clients.
- Grant Assistance: We guide homeowners through the $3,000 LogisVert Grant process, making energy-efficient upgrades more accessible.
The Future of Home Comfort with AirGreen
The SHARP BU Triple Zone Heat Pump represents the future of home comfort, combining advanced air purification, energy efficiency, and unparalleled performance. Whether you’re battling frigid winters or sweltering summers, this system adapts to your needs, providing consistent comfort all year long.
If you’re in Saint-Eustache, Montreal, Laval, Longueuil, Rive Nord, or Rive Sud and looking for a top-tier HVAC installation, AirGreen is your trusted partner. Our team of experts will help you choose the perfect system for your home and ensure a seamless installation process.
Contact AirGreen for Your Next HVAC Project
Ready to experience the benefits of a SHARP BU Triple Zone Heat Pump? Contact AirGreen today for a free consultation and see how we can transform your home with cutting-edge HVAC solutions. Whether you’re looking to save on energy costs, improve indoor air quality, or upgrade your comfort, we’re here to help.
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 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 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
By town, by equipment or by region: browse more than 4,700 published projects.
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).
