Installation of a Sharp BU Double Zone Heat Pump in Montreal
Experience the ultimate in home comfort with AirGreen’s installation of the Sharp BU Double Zone Heat Pump in Montreal. Enjoy energy savings, superior air quality, and tailored climate control!
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.
Enhancing Home Comfort in Montreal with the Sharp BU Double Zone Heat Pump
When it comes to reliable, energy-efficient, and innovative HVAC solutions, the Sharp BU Double Zone Heat Pump stands out as a top choice for homeowners in Montreal, Laval, Longueuil, and across the North and South Shores. This cutting-edge heat pump not only provides impressive heating and cooling capabilities but also delivers unparalleled air purification and advanced features, designed to handle even the harshest climates.
At AirGreen, we take pride in the professional and seamless installation of these systems. One of our most recent projects involved installing a 24,000 BTU Sharp BU Double Zone Heat Pump in a home located in Montreal, and the results speak for themselves.
The Sharp BU: A Powerful Machine for Montreal’s Diverse Climate
Montreal's climate can be unpredictable, with extreme cold in the winter and sweltering heat in the summer. Homeowners need a system that can handle both with ease, and the Sharp BU Double Zone Heat Pump is exactly that. With a cooling capacity of 24,000 BTU and the ability to heat even when outdoor temperatures dip as low as -27°C, this machine ensures year-round comfort no matter the season.
Two Zones for Customized Comfort
One of the standout features of the Sharp BU Heat Pump is its ability to handle two separate zones. This installation included two 12,000 BTU indoor units, allowing the homeowner to manage the temperature independently in different areas of the house. Whether you need a cool bedroom and a warm living room, or vice versa, this system makes it possible. Plus, with the potential to add a third zone in the future, it offers unmatched flexibility.
The Installation Process: What Makes AirGreen Unique
At AirGreen, we believe that the quality of installation is just as important as the machine itself. For this project in Montreal, we took great care to ensure that every detail was perfect. The exterior unit—measuring 33.47 x 13 x 27.94 inches—was strategically placed to optimize airflow and minimize noise for the homeowner, as it operates at a low 50 dB(A) sound level.
To ensure long-term durability, we mounted the compressor unit on a solid platform that can withstand Montreal’s challenging weather conditions, including heavy snowfall in the winter. Special attention was also paid to the “HOT GAS PIPE” system, which prevents ice from forming on the external unit, ensuring continuous operation even during the coldest days.
Energy Efficiency and Eco-Friendly Refrigerant
With an efficiency rating of 24.0 SEER, the Sharp BU is an energy-saving powerhouse. This translates to significant reductions in energy consumption, allowing homeowners to enjoy lower electricity bills while staying comfortable all year long. Moreover, the use of R-32 refrigerant is a game-changer in terms of environmental impact. With a much lower global warming potential (GWP) compared to traditional refrigerants, the R-32 refrigerant helps reduce the overall carbon footprint of the heat pump, aligning with both environmental and economic sustainability goals.
Plasmacluster Technology: More Than Just Temperature Control
This installation was about more than just heating and cooling. One of the most exciting features of the Sharp BU Heat Pump is its Plasmacluster technology, which goes beyond temperature regulation to purify the air inside the home. By emitting positive and negative ions, this system neutralizes viruses, bacteria, allergens, and even odors, ensuring the air you breathe is as fresh and healthy as possible.
For families dealing with allergies, asthma, or other respiratory concerns, this technology can make a significant difference in daily life, offering peace of mind along with superior comfort.
A System Backed by Generous Grants and Warranties
One of the many reasons our customers choose the Sharp BU Heat Pump is its eligibility for substantial government grants. This system qualifies for a $3,000 grant from Hydro-Québec’s LogisVert program, making it a more affordable choice for homeowners looking to upgrade their HVAC systems. Additionally, federal grants can further reduce the upfront costs, with eligible amounts ranging from $2,500 to $5,000.
To provide even more reassurance, the Sharp BU comes with a 10-10-10 warranty—10 years on the compressor, 10 years on parts, and 10 years on labor—ensuring that this system is a sound investment for the long haul.
Why Choose AirGreen for Your HVAC Installation?
At AirGreen, we don’t just install machines—we install peace of mind. Our team is dedicated to providing top-notch service, ensuring that every system is installed to perfection, and that every customer is satisfied. For this particular Montreal installation, we worked closely with the homeowner to ensure that the system would meet their specific needs. The two-zone setup allows them to customize their home’s climate room by room, saving energy and money while maximizing comfort.
We also ensure that all installations are up to code and that every system is optimized for Wi-Fi control, allowing users to manage their home’s temperature from their smartphone, whether they’re at home or on the go.
Conclusion: Sharp BU—A Perfect Solution for Montreal’s Climate
The Sharp BU Double Zone Heat Pump offers the ideal blend of efficiency, flexibility, and air quality improvement. With its R-32 refrigerant, advanced Plasmacluster technology, and two-zone capability, it’s designed to provide superior comfort in every season. And with the backing of significant government grants and an outstanding 10-10-10 warranty, this system is a smart, sustainable investment for any homeowner.
At AirGreen, we’re proud to offer this cutting-edge solution to our customers in Montreal, Laval, Longueuil, and beyond. If you’re looking for a reliable, energy-efficient heat pump installation, trust us to deliver professional service and unmatched expertise every time.
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 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.
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).