In Cambodia's hot and humid climate, the ERV (energy recovery ventilation) system is more applicable in the following places, and needs to be comprehensively judged  

in combination with local climate characteristics (high temperature and high humidity) and equipment functions (full heat exchange, energy saving and humidity control):

1. High-end hotels in seaside resorts

‌Sihanoukville Resort Hotel‌: High-end hotels in independent beach areas (such as Novotel Resort Hotel) are equipped with central air-conditioning systems, which need to 

maintain indoor air quality and reduce air-conditioning energy consumption. The ERV system can pre-cool/preheat the fresh air and recover energy, which is especially suitable 

for sea view rooms that need to be sealed and moisture-proof and ventilated.

‌Island luxury resort‌: Private resorts such as Koh Rong Samloem Island have high requirements for comfort and energy saving. ERV can meet the fresh air demand of enclosed 

spaces (such as villas with air conditioning) and reduce the surge in air conditioning load caused by the direct entry of humid and hot fresh air.

2. Modern urban commercial and public buildings

‌Phnom Penh high-end commercial buildings/office buildings‌: New commercial centers, large shopping malls or high-end office buildings in the capital generally use central air conditioning. 

The ERV system can be integrated with it to significantly reduce the dehumidification and cooling energy consumption caused by the introduction of a large amount of fresh air while ensuring indoor air quality.

‌Medical/Educational Institutions‌: Hospitals, international schools and other places with strict requirements on air cleanliness and temperature and humidity stability. ERV can provide filtered

 fresh air and reduce humidity fluctuations to create a healthy environment.

3. New large-scale infrastructure and complexes

‌Canal-related new facilities‌: New commercial areas or service facilities planned along the De Chong Funan Canal (to be started in 2024) can be pre-installed with modern ventilation systems. 

ERV is suitable for such infrastructure supporting buildings that require long-term operation and energy saving.

‌Urban emerging complexes‌: New large shopping malls or conference centers in Phnom Penh, Siem Reap and other places. ERV integration in the design stage can optimize energy management 

and meet the trend of green buildings.

Summary of key applicable factors

‌Climate adaptability‌: ERV full heat exchange core can effectively handle Cambodia's high temperature and high humidity fresh air (annual average of 25-32°C), recover energy and reduce humidity load, 

which is more energy-efficient than simple ventilation.

‌Building type‌: New/high-end buildings with good airtightness and central air conditioning or fresh air system are required (traditional Khmer ventilation buildings are not applicable).

‌Energy saving demand‌: The low operating cost advantage of less than 1 kWh of daily power consumption is suitable for long-term operation sites.

‌Maintenance ability‌: The filter element and heat exchange core need to be replaced regularly, and the owner is required to have maintenance conditions or service support.

Notes

‌Traditional houses/simple B&Bs‌: Natural ventilation can meet the needs, and installing an ERV system is not cost-effective.

‌Completely open space‌: No mechanical ventilation is required for beach bars, open-air restaurants, etc.

‌Unstable power area‌: Remote islands or villages lack stable power to support equipment operation.