Nigeria is suitable for installing ERV (Energy Recovery Ventilation) systems in the following scenarios, taking into account local climate characteristics and building requirements:

High-Density Urban Buildings

Cities like Lagos are densely populated, with high building ventilation demands. ERV systems can efficiently recover energy and reduce air conditioning loads. 

Local policies support energy transition, and photovoltaic energy storage can be used to power the system.

High-Temperature and High-Humidity Environments

Nigeria's tropical climate is hot and humid year-round. The heat exchange function of ERVs can reduce the humidity of fresh air, minimizing condensation while maintaining indoor air quality.

Commercial and Public Facilities

Exhibition centers, shopping malls, and other large venues use ERVs for energy-efficient ventilation. Similar systems are already being used in professional venues, 

as evidenced by HVAC technology trends at the Lagos International Exhibition.

Residential and High-End Apartments

Modern residential buildings in cities like the capital, Abuja, tend to use imported fresh air systems (such as the Lanshe ERV series). 

Their heat exchange technology is adapted to the local climate, and installation requires careful attention to duct design and maintenance space.

Industrial and Energy Facilities

Industrial buildings such as turbine rooms can utilize streamlined rooftop ventilators in combination with ERVs to utilize natural ventilation and reduce energy consumption, 

while also complying with local wind load and seismic requirements.

Notes:

During installation, avoid placing vents too close together (recommended >1000mm) to prevent air short-circuiting.

Outdoor equipment must be rainproof, such as with a NEMA 3R or higher rating.

Maintenance space must be reserved for easy filter replacement.