The following regions and building types in Finland are particularly suitable for the application of ERV (energy recovery ventilation) systems, mainly based on extreme 

climate, building regulations and environmental requirements:

I. Severe cold and high humidity areas

‌Near the Arctic Circle (such as Lapland)‌

- Extremely cold in winter (often below -30℃), ERV effectively recovers heat from the exhaust air, greatly reducing heating energy consumption.

- Long-term ice and snow environment leads to a large temperature difference between indoor and outdoor. ERV maintains humidity balance through full heat exchange 

to avoid excessive indoor drying.

‌Coastal cities (such as Helsinki and Turku)‌

- High humidity sea breeze environment is prone to induce condensation in buildings. ERV continuous ventilation can control humidity and prevent mold growth.

II. Specific building types

‌New passive house/ultra-low energy consumption building‌

- High airtightness design relies on mechanical ventilation, and ERV combined with heat recovery function meets the strict energy consumption standards of passive houses.

- Small apartments are suitable for unit ERV (such as combined HRV/ERV), and large apartments or entire buildings are suitable for centralized systems.

‌Old residential renovation‌

- Wall-mounted ERV (such as Enco ERU-W series) does not require complex pipes and can be directly installed on the exterior wall, which is suitable for the renovation of existing houses.

‌Public and commercial space‌

- Hotels, office buildings, hospitals and other places are densely populated, and ERV ensures air quality while reducing the risk of air-conditioning disease.

- High-rise buildings prefer to use independent pressurized air supply systems, and ERV can be integrated into smoke-proof designs to improve safety redundancy.

III. Key points of technical adaptation

‌Climate adaptability‌: Antifreeze ERVs must be selected throughout Finland, and some models must be equipped with preheating modules to prevent core icing.

‌System selection‌: ERV is better than HRV in cold regions because it has both moisture and heat recovery to avoid low indoor humidity in winter.