In Rosemont–La Petite-Patrie, many apartment buildings and condominiums have flat roofs, a typical Montreal feature. This was exactly the case for this client who wanted to improve the comfort of his apartment while reducing his electricity bill. He contacted us for the installation of a high-performance and reliableSharp wall-mounted heat pump , capable of providing heating for a good part of the winter and gentle cooling in the summer.
We recommended the installation of a Sharp ZU1 wall-mounted heat pump, 18,000 BTU, Eco Inverter technology , perfectly suited to the building's configuration and the family's needs.
Why a Sharp wall-mounted heat pump for this project?
Sharp wall-mounted systems are particularly appreciated for:
-
their high energy efficiency thanks to Eco Inverter technology,
-
their reliability in heating during cold weather ,
-
their quiet operation , both indoors and outdoors,
-
and their comfort options such as the Plasmacluster ionizing function, ideal for improving indoor air quality.
In a neighbourhood like Rosemont–La Petite-Patrie, where homes are often terraced and backyards are limited, the wall-mounted solution with an outdoor unit on the flat roof is often the most logical: it frees up floor space, reduces the risk of vandalism and keeps neighbourhood noise at bay.
A typical building in Rosemont–La Petite-Patrie
The client's building is a flat-roofed, gravel-covered duplex, a common sight along the residential streets of Rosemont. The main constraints were:
-
Membrane roof that must not be punctured or damaged.
-
Limited ground space at the rear of the building.
-
Proximity to neighbors , requiring a discreet and quiet installation.
-
Adequate drainage is needed for defrost water in winter.
These realities naturally led us to install it on the flat roof , on an elevated structure, with particular attention paid to load distribution and membrane protection.
Details of the installation of the Sharp outdoor unit
The Sharp Eco Inverter outdoor unit was installed directly on the roof, but never in direct contact with the membrane:
-
We first positioned two treated wooden beams to distribute the weight over a larger area.
-
On top of that, we fixed a raised galvanized metal structure , specially designed to accommodate flat roof heat pump equipment.
-
This structure allows:
-
to raise the unit to protect it from snow accumulation,
-
to promote air circulation around the condenser,
-
and to avoid pressure points that could damage the roofing membrane.
-
We also have:
-
installed an electrical disconnect box in the immediate vicinity of the unit, conforming to standards,
-
Secure the cables and refrigeration connections on a rigid rail to prevent them from dragging on the roof.
-
checked the clearances around the fan and grilles to ensure optimal airflow in both cooling and heating modes.
The result: a clean, stable installation, accessible for maintenance, and perfectly suited to Montreal winters.
The interior unit: comfort and discretion
Inside, the Sharp wall-mounted head unit was installed in the main living area of the dwelling, in a strategic location allowing for:
-
uniform air distribution in the living room, dining room and kitchen,
-
a limitation of direct air currents on the occupants,
-
easy access to the filter for regular maintenance.
Thanks to Inverter technology , the heat pump doesn't simply switch on and off: it continuously adjusts its power to maintain a stable temperature, which results in:
-
fewer temperature variations,
-
a greater sense of comfort,
-
and a reduction in electricity consumption .
The Plasmacluster (ionizer) function helps reduce dust and certain allergens, an added benefit for families living in an urban environment like Rosemont–La Petite-Patrie.
Winter performance in Montreal
Even if the primary heating source is often electricity or another system, the Sharp ZU1 wall-mounted heat pump can handle a large portion of the heating needs during the fall, spring, and a good part of the winter:
-
It maintains efficient heating capacity at low temperatures .
-
It helps to reduce the energy consumption of electric baseboard heaters .
-
And it offers an attractive return on investment thanks to the energy savings accumulated over the seasons.
Mounted on the roof, the elevated unit, with sufficient clearance around the heat exchanger, promotes efficient automatic defrosting. We also considered the prevailing wind direction to prevent blown snow from covering the machine.
Aesthetics, quietness and respect for the neighborhood
One particularly appreciated feature of this type of installation:
-
From the street, the outdoor unit is practically invisible : it is concealed on the roof.
-
The noise level of the Sharp unit is very low, which reduces the risk of disturbance to immediate neighbors.
-
Inside, the wall-mounted head is compact, discreetly designed, and blends easily into the existing decor.
For a dense neighbourhood like Rosemont–La Petite-Patrie, this is an important advantage: the comfort of our clients should not come at the expense of their neighbours.
Maintenance, warranty and follow-up by AirGreen
As with all our Sharp wall-mounted heat pump installations in Greater Montreal, we provided the customer with:
-
manufacturer's warranty information on the compressor and parts,
-
our preventive maintenance recommendations (filter cleaning, outdoor unit inspection, snow removal),
-
as well as contact details to reach us quickly should you have any questions or require our services.
Our teams offer regular maintenance visits in order to:
-
check the refrigerant pressure,
-
inspect the electrical connections,
-
clean the heat exchangers,
-
and ensure the longevity of the system.
AirGreen: Your heat pump partner in Rosemont–La Petite-Patrie
This Sharp wall-mounted heat pump installation on a flat roof in Rosemont–La Petite-Patrie illustrates our way of working: analyze the building, respect the existing structure, protect the envelope, and offer a reliable, quiet and economical system.
Whether you own a multi-unit building, a condo, or a single-family home, we can:
-
assess your heating and air conditioning needs,
-
We can offer you a Sharp system or another recognized brand .
-
and to carry out a careful installation, in accordance with standards, designed for the real conditions of the Montreal climate.
Do you also want to enjoy the comfort of a Sharp wall-mounted heat pump in Rosemont–La Petite-Patrie or elsewhere in Greater Montreal?
Contact us: we will be happy to analyze your project and offer you the best solution for your building and budget.