Installation of a Sharp BU Double Zone Heat Pump in Sainte-Julie
Discover how AirGreen transformed a home in Sainte-Julie with a Sharp BU Double Zone Heat Pump—superb comfort, energy savings, and grant eligibility.
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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
Enhancing Comfort and Efficiency for Modern Homes in Sainte-Julie
At AirGreen, we recently had the pleasure of completing a Sharp BU Double Zone Heat Pump installation in Sainte-Julie—a project that beautifully combines energy efficiency, comfort, and innovation. This unique system, equipped with a 24,000 BTU compressor, features two indoor units: one compact 9,000 BTU unit and another more robust 18,000 BTU unit, ensuring precise climate control across two zones. Whether it's sweltering summers or frigid winters, this heat pump delivers exceptional results, even at extreme temperatures as low as -27°C.
What makes this project even more rewarding is the opportunity for the homeowner to benefit from the $3,000 LogisVert grant by Hydro-Québec. Plus, this Sharp heat pump earned the top spot in our Guide des Thermopompes Murales 2025—a distinction we’re incredibly proud to highlight.
The Homeowner's Vision: From Problem to Solution
When the client approached us, they wanted a solution that could tackle two key areas of their home: the living room and the master bedroom. Each space had different climate needs, so the Double Zone Sharp BU was the perfect choice.
- The 9,000 BTU unit, compact yet effective, was installed in the master bedroom, delivering cool, fresh air in summer and cozy warmth during winter nights.
- The larger 18,000 BTU unit, installed in the main living area, ensures the entire family enjoys consistent comfort throughout the year.
Both units are whisper-quiet, operating with a sound level that barely rises above a soft hum. With the 50 dB(A) sound pressure level on the exterior unit, even the neighbors are undisturbed—a big win for suburban living.
Why the Sharp BU Heat Pump Stood Out
We recommended the Sharp BU model because of its unique features and unparalleled reliability:
1. Exceptional Heating and Cooling Capacity
- Cooling Capacity: 24,000 BTU—perfect for scorching summer days.
- Heating Capacity: Reliable operation down to -27°C, ideal for harsh Quebec winters.
2. Energy Efficiency with R-32 Refrigerant
The Sharp BU uses R-32 refrigerant, an eco-friendly solution with a lower Global Warming Potential (GWP). This choice not only reduces the system’s environmental footprint but also enhances performance.
3. WiFi Connectivity for Smart Climate Control
The system’s built-in WiFi feature allows homeowners to control their comfort zones directly from a smartphone or tablet. Adjusting temperatures has never been so convenient.
4. Extended Warranty for Peace of Mind
Sharp backs this system with a comprehensive 10-10-10 warranty:
- 10 years on the compressor
- 10 years on parts
- 10 years on labor
This level of coverage ensures worry-free performance for the long term.
Seamless Installation Process: Precision and Quality
Our team at AirGreen approached this installation with precision and care, ensuring that every step met our rigorous standards.
- Outdoor Unit Placement: The exterior unit (model AE-X3M24BU) was strategically installed to optimize airflow and minimize noise. At dimensions of 33.47 x 13 x 27.94 inches, it fit seamlessly into the client’s space without compromising aesthetics.
- Indoor Unit Setup: Both units—AY-XPC9BU for the bedroom and AY-XPC18BU for the living room—were mounted with precision to ensure optimal airflow distribution.
We also focused on gas line integrity, using R-32 refrigerant safely and efficiently, and ensured 220V voltage compatibility for uninterrupted operation.
Advanced Features for Everyday Comfort
What sets the Sharp BU Double Zone Heat Pump apart are its advanced features designed for modern homes:
Smart Air Distribution
Thanks to Coanda airflow technology, the system directs air along walls and ceilings, ensuring even and gentle climate control without uncomfortable drafts.
Low Noise Levels
The indoor units operate quietly, creating a peaceful environment for sleeping, working, or relaxing.
Energy Star® Certification
The Sharp BU is Energy Star® certified, guaranteeing lower energy consumption and reduced electricity costs.
Self-Cleaning Function
Maintenance is simplified with the system’s self-cleaning mode, which prevents dust and mold buildup while purifying the air.
Why Sainte-Julie Homeowners Love This System
In Sainte-Julie and the surrounding areas, homeowners prioritize efficiency, comfort, and sustainability. The Sharp BU Double Zone Heat Pump meets all these needs and more. Its ability to handle two separate zones makes it ideal for families looking to customize their home’s climate without compromise.
For this particular installation, the client was thrilled with the system’s performance and aesthetic integration. They’re now enjoying:
- Superior comfort year-round
- Significant energy savings
- A healthier indoor environment, thanks to Sharp’s air filtration technology
The additional benefit of the LogisVert grant also made this project a cost-effective investment.
Why Choose AirGreen for Your Heat Pump Installation?
At AirGreen, we combine years of expertise with a customer-focused approach to deliver superior results. Whether you live in Montreal, Laval, Longueuil, or on the North Shore and South Shore, we’re committed to providing the highest quality installations.
What Sets Us Apart?
- Certified technicians with in-depth knowledge of heat pump systems
- Attention to detail at every step of the installation process
- Ongoing support and service to ensure your system runs perfectly
We take pride in offering the latest and most efficient HVAC solutions, like the Sharp BU Double Zone Heat Pump, to meet the unique needs of our Quebec climate.
Get Started with Your Heat Pump Installation Today!
Are you looking to upgrade your home comfort? The Sharp BU Double Zone Heat Pump offers the perfect blend of performance, efficiency, and innovation. Plus, with available grants like Hydro-Québec’s LogisVert program, there’s never been a better time to invest in a high-quality heat pump system.
Contact AirGreen today to schedule your consultation. Let us transform your home into a haven of comfort and efficiency.
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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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).