Elegant and efficient integration for optimal comfort all year round
In this charming duplex in the Rosemont–La Petite-Patrie neighborhood, our AirGreen team recently installed a Sharp ZU1 wall-mounted heat pump . This model, known for its R-32 technology and reliable performance down to -25°C , is an ideal choice for Montreal urban residences where thermal comfort and energy efficiency must coexist harmoniously.
An installation perfectly suited to a restricted space
The indoor unit was precisely installed above a French door opening onto the rear garden. This strategic positioning maximizes airflow in the main room while preserving the interior aesthetic.
Our technicians opted for a direct drilling through the wall to reduce the length of the refrigerant circuit, thus optimizing energy efficiency. The wiring and refrigerant pipes were carefully covered in white , ensuring a discreet and clean visual integration.
The Sharp ZU1 model: performance, reliability and efficiency
The Sharp ZU1 is part of the new generation of R-32 heat pumps, a more environmentally friendly and efficient refrigerant. Offering capacities ranging from 12,000 to 24,000 BTUs , this model excels in winter supplemental heating and summer cooling .
Thanks to its DC inverter compressor and intelligent eco mode , the ZU1 continuously adjusts its power according to the ambient temperature, reducing energy consumption without compromising comfort.
Technical challenges and solutions provided
Installing a wall-mounted unit in a room with low ceilings presented a particular challenge. The limited height between the ceiling and the door molding required a millimeter of clearance to ensure proper air circulation and access for future maintenance.
Our installers precisely adjusted the wall bracket and secured the pipes with a slight gravity slope , thus avoiding the need for a condensate pump. The result: a quiet, stable and efficient installation over the long term.
Quiet and lasting comfort
The Sharp ZU1 also stands out for its very low noise level , an essential feature in dense urban environments like Rosemont. The indoor unit emits just 19 dB(A) in silent mode—a real asset for summer nights or teleworking days.
Combined with its exclusive Sharp plasma cluster filter , it ensures superior air quality , reducing allergens and household odors.
Subsidies and economic benefits
As an Energy Star heat pump that performs down to −25°C, the Sharp ZU1 is eligible for several financial assistance programs, including Rénoclimat and Chauffez vert . These grants can significantly reduce the total installation cost , making the investment even more attractive for Montreal homeowners.
Why choose AirGreen for your HVAC installation in Montreal
At AirGreen , we prioritize careful, durable installations that are optimized for each residential environment. Our team understands the architectural features of Montreal plexes and homes , from typical exterior staircases to load-bearing brick walls , ensuring fast and safe interventions, even in tight spaces.
Each project is preceded by a complete thermal assessment to recommend the most appropriate model — guaranteeing comfort, energy efficiency and peace of mind .
Datasheet — Sharp ZU1 (R-32)
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Type : Single-zone wall-mounted heat pump
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Capacity : 12,000 to 24,000 BTU
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Operating temperature : up to −25°C
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Refrigerant : R-32
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Energy efficiency : SEER 25 / HSPF 12
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Indoor noise level : 19 to 42 dB(A)
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Eligible for subsidies : Yes (Rénoclimat, Chauffez vert)
Final result
The owner now enjoys constant comfort , summer and winter, with a high-energy efficiency unit and a design perfectly integrated into its interior .
This installation once again demonstrates the expertise of AirGreen , a leader in residential HVAC solutions in Greater Montreal .