Installation of a SHARP ZHU1 Mini Split Heat Pump in Ville-Marie
Learn how AirGreen transformed a Ville-Marie home with a SHARP ZHU1 Mini Split Heat Pump, offering unmatched efficiency, air purification, and a $2,268 Hydro-Québec grant!
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.
A Cutting-Edge Heating and Cooling Solution for Urban Living
At AirGreen, we take pride in delivering high-performance HVAC solutions tailored to the unique needs of Montreal homes. Recently, we had the privilege of installing a SHARP ZHU1 Mini Split Heat Pump in the historic Ville-Marie borough of Montreal. This advanced unit is more than just a heating and cooling system; it represents a step forward in energy efficiency, comfort, and environmental responsibility. Here’s a detailed look at this installation project and why this system is an ideal choice for modern urban living.
The Installation: Where Heritage Meets Innovation
Located in one of Montreal’s most iconic districts, this installation required a careful balance of precision and aesthetics. The property, a charming brick-faced multi-unit residential building, is situated in the bustling heart of Ville-Marie. The client wanted an unobtrusive yet highly effective solution to address the year-round heating and cooling demands of their urban home.
We installed the 12,000 BTU SHARP ZHU1 Mini Split Heat Pump, which is specifically designed to operate efficiently in temperatures as low as -27°C. The outdoor unit was securely mounted on a wall bracket, ensuring minimal space usage and maximum durability. Meanwhile, the sleek indoor unit was strategically placed to provide optimal airflow while blending seamlessly with the interior design.
What Makes the SHARP ZHU1 a Standout Choice?
Unmatched Energy Efficiency and Environmental Benefits
The SHARP ZHU1 boasts an impressive 25.0 SEER rating, making it one of the most energy-efficient mini splits available. Equipped with the environmentally friendly R-32 refrigerant, this unit not only reduces greenhouse gas emissions but also lowers electricity consumption by approximately 10% compared to older refrigerants like R-22. For environmentally conscious homeowners, this is a significant advantage.
Exceptional Heating and Cooling Performance
This mini split delivers 12,000 BTU of cooling power and maintains its heating capacity at extreme temperatures. With its Energy Star® Cold Climate certification, the ZHU1 ensures reliable performance even during Montreal’s harsh winters. Unlike many other systems that falter in sub-zero conditions, this heat pump continues to provide consistent warmth at outdoor temperatures as low as -27°C.
Innovative Air Purification with Plasmacluster Technology
One of the standout features of this system is its Plasmacluster air purification technology. This cutting-edge feature neutralizes airborne viruses, allergens, and mold while eliminating unpleasant odors, ensuring that the indoor air remains fresh and healthy. For urban environments like Ville-Marie, where air quality can sometimes be a concern, this technology is a game-changer.
Quiet Operation for Urban Comfort
With a sound pressure level of just 22 dB(A) for the indoor unit, the ZHU1 operates almost silently. Whether you’re working from home, enjoying a quiet evening, or entertaining guests, the system ensures comfort without disrupting your peace.
The Grant Advantage: Making Sustainability Affordable
One of the most exciting aspects of this installation is that the SHARP ZHU1 Mini Split Heat Pump qualifies for a $2,268 LogisVert Grant from Hydro-Québec. This is the highest grant available for a 12,000 BTU unit, making it an exceptional value for homeowners looking to upgrade their HVAC systems while reducing upfront costs.
Technical Specifications: A Closer Look
- Cooling Capacity: 12,000 BTU
- Heating Capacity: -27°C
- Refrigerant: R-32
- Sound Pressure Level (Indoor): 22 / 44 dB(A)
- Sound Pressure Level (Outdoor): 49.0 dB(A)
- Dimensions (Indoor Unit): 41.42 x 9.80 x 12.44 inches
- Dimensions (Outdoor Unit): 30.72 x 10.59 x 21.25 inches
- Voltage: 220V
- Piping: 1/4 - 3/8
- Warranty: 10 years on compressor, parts, and labor
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we don’t just install HVAC systems—we tailor solutions to meet the specific needs of our clients. For this project in Ville-Marie, our team ensured that every aspect of the installation was executed to perfection. From selecting the ideal unit to optimizing its placement for maximum efficiency, we handled every detail with care and professionalism.
Our Commitment to Quality
- Precision Installation: We ensure that every component is installed securely and functions optimally.
- Customer Education: We take the time to explain the system’s features and maintenance requirements, empowering homeowners to get the most out of their investment.
- Sustainability: By partnering with brands like SHARP, we offer energy-efficient solutions that align with modern environmental standards.
Transforming Ville-Marie Homes with Innovative HVAC Solutions
The installation of the SHARP ZHU1 Mini Split Heat Pump in Ville-Marie is a testament to the possibilities of modern HVAC technology. This system not only meets the heating and cooling demands of urban living but also enhances indoor air quality, reduces energy consumption, and aligns with sustainable living practices.
Whether you’re renovating a historic property or upgrading your current HVAC system, AirGreen is here to help you find the perfect solution. Contact us today to learn more about our services and how we can transform your home into a haven of comfort and efficiency.
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.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
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.
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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).