Based on your experience operating an ERV ventilation system business in Toronto and your focus on international market demands, combined with Toronto's climate characteristics, 

the following is an analysis of suitable scenarios for installing ERV (Energy Recovery Ventilation) systems:

Residential Buildings

In Toronto, winters are cold and long, while summers are warm and humid. ERV systems are particularly suitable due to their humidity control capabilities. For newly built or renovated homes, 

especially passive houses or energy-efficient homes with high airtightness designs, ERV effectively recovers heat from exhaust air while controlling indoor humidity, preventing excessively dry 

air in winter or excessively high humidity in summer. For homes with existing whole-house humidification systems, HRV (Heat Recovery Ventilation) is also a viable option, but ERV has a greater advantage 

in humidity management.

Commercial and Public Buildings

Commercial buildings (such as office buildings and schools) and public facilities (such as community centers) are typically densely populated and have high requirements for indoor air quality and 

energy consumption. ERV systems ensure continuous ventilation while reducing heating/cooling energy consumption, making them suitable for long-term operational needs in Toronto's climate. 

Centralized ERV systems are particularly suitable for large buildings, optimizing space utilization by uniformly addressing the ventilation needs of multiple areas.

Installation Recommendations

**Equipment Selection:** Prioritize ERV equipment with high energy efficiency and low noise levels, and ensure the installation team is familiar with system commissioning (e.g., airflow balancing, 

humidity sensor calibration).

**System Design:** Choose a modular (suitable for small or dispersed spaces) or centralized (suitable for large buildings) solution based on the building layout, and allow sufficient maintenance space.

**Marketing:** Focus on promoting the humidity control advantages of ERVs to new Toronto residential developers, green building certification projects (e.g., LEED), or high-humidity-sensitive locations 

(e.g., gyms, swimming pools).

For further information on Toronto building codes or specific project examples, please provide more detailed requirements for precise analysis.