Triple Zone Heat Pump SHARP BU | Montreal, Laval, Longueuil, South Shore & North Shore
The Sharp BU 24 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 25,000 BTU/h at −8 °C, heats down to −27 °C and qualifies for a $3,000 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit, and the most powerful in its class at −8 °C.
Compared with the 59 multi-zone systems of 24,000 BTU we sell. Every number on this page carries its source.
Before the numbers, watch it run.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 88 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 59 multi-zone systems of 24,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
The Future of Home Heating and Air Conditioning Redefined by the SHARP BU Triple Zone Heat Pump.
In a world where home comfort and energy efficiency are more important than ever, AirGreen is at the forefront of innovation with the introduction of the SHARP BU Triple Zone Heat Pump. Specifically designed to meet the diverse needs of residents in Montreal, Laval, Longueuil, South Shore, and North Shore, this heat pump embodies a perfect fusion of cutting-edge technology and environmental care.
Plasmacluster Innovation: A Revolution for Indoor Air Quality
Plasmacluster: Purified Air Every Day
SHARP’s exclusive Plasmacluster technology is at the heart of the SHARP BU Triple Zone Heat Pump. This innovative technology generates positive and negative ions similar to those found in nature, providing an unprecedented indoor air purification solution. These ions effectively neutralize bacteria, viruses, mold, and allergens, ensuring a healthy home environment for you and your family.
- Neutralization of pathogens: Plasmacluster ions destroy the molecular structures of airborne viruses and bacteria, reducing the risk of disease transmission.
- Odor elimination: This technology also targets molecules responsible for unpleasant odors, such as tobacco, pets, or cooking smells, leaving your home fresh and welcoming.
Impact on Health and Well-being
Purified air has a direct impact on the health and well-being of household occupants. By reducing allergens and contaminants, people suffering from allergies, asthma, or other respiratory issues can experience a significant improvement in their quality of life.
R-32 Refrigerant: A Giant Leap Toward Sustainability
R-32: The Refrigerant of the Future
The choice of R-32 refrigerant for the SHARP BU Triple Zone Heat Pump reflects SHARP’s commitment to the environment. This next-generation refrigerant offers several advantages over traditional options like R-22 or R-410A:
- Increased energy efficiency: R-32 enables more efficient heat transfer, resulting in significant reductions in energy consumption and associated costs.
- Reduced environmental impact: With a much lower global warming potential (GWP) than traditional refrigerants, R-32 helps reduce the ecological footprint of heating and cooling systems.
- Ease of recycling: R-32 is easier to recover and recycle, promoting sustainable practices in the HVAC industry.
The Coanda Effect: A Revolution in Air Conditioning Comfort
At the core of SHARP technology is the Coanda effect, a phenomenon that revolutionizes air distribution in living spaces. Inspired by the natural tendency of fluids to follow the curve of nearby surfaces, this effect allows the SHARP BU Triple Zone Heat Pump to direct conditioned air along walls and ceilings, ensuring even temperature distribution. This unique process avoids the discomfort of direct airflow on room occupants, creating a more comfortable and pleasant indoor environment.
- Even air distribution: Thanks to the Coanda effect, the heat pump ensures a uniform distribution of warm or cool air, eliminating hot and cold spots for optimal comfort in every corner of the room.
- Avoids direct drafts: Air is directed so it does not blow directly on people, improving overall comfort and avoiding the discomfort associated with traditional air conditioning systems.
"HOT GAS PIPE" System (Patented): Optimal Performance in Cold Weather
The "HOT GAS PIPE" system, exclusive to SHARP, is specially designed to deliver exceptional heating performance even in the harshest winter conditions. Capable of operating efficiently down to -27°C, this system uses residual heat from the defrosting process to prevent ice formation on the outdoor unit, ensuring uninterrupted and efficient operation.
- Efficiency at low temperatures: Thanks to this technology, the SHARP heat pump outperforms competing models in cold climates, providing uncompromised comfort throughout the winter.
- Energy savings: By minimizing heat loss during defrosting, the "HOT GAS PIPE" system contributes to better energy efficiency and savings on heating costs.
Self-Cleaning Function: Unprecedented Air Quality
One of the most remarkable features of the SHARP BU Triple Zone Heat Pump is its ability to maintain exceptional indoor air quality through its self-cleaning function. Harnessing the power of Plasmacluster ions, this function prevents mold growth inside the unit, thereby reducing unpleasant odors and allergens in the air.
- Mold prevention: The self-cleaning function regularly initiates a purification cycle, preventing mold formation and ensuring healthier air.
- Reduced maintenance needs: By minimizing mold growth, this function extends the unit’s lifespan and decreases the frequency of maintenance interventions, providing users with added peace of mind.
Conclusion
The AirGreen SHARP BU Triple Zone Heat Pump stands as a cutting-edge solution in the world of home heating and air conditioning, marking a decisive shift toward an era of domestic comfort and environmental responsibility. With revolutionary technologies such as Plasmacluster for unparalleled indoor air quality, the use of R-32 refrigerant for energy efficiency and reduced ecological footprint, and the Coanda effect for optimized air distribution, this heat pump redefines industry standards. Moreover, its "HOT GAS PIPE" system ensures exceptional performance even in the most demanding climatic conditions, while the self-cleaning function promises air quality maintained without a trace of mold. By combining innovation, performance, and sustainability, the SHARP BU Triple Zone Heat Pump stands as the ultimate choice for those seeking to blend modern comfort with environmental respect in their homes. Its positive impact on quality of life and the ecosystem makes it a benchmark for future generations, reflecting AirGreen’s commitment to a greener, healthier future.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 25,000 BTU/h at −8 °C, 21,200 at −15 °C.
How many heads can I connect?
Up to 3 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 4 combinations, from 9+9+9 to 12 + 12 + 12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$3,000 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, cold climate, ID 3391682. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −27 °C.
Is it noisy?
Indoors, the reference head goes down to 23 dB(A). Outdoors, 50 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: included.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.