![earth-air](https://s3future.com/wp-content/uploads/2023/07/earth-air-1.jpg)
A WHITEPAPER ON
EARTH-AIR HEAT EXCHANGER SYSTEM
S3Future - A sustainable not for profit private initiative
The building sector is responsible for 40% of primary energy consumption, with heating/cooling covering the most significant portion. Thus, passive heating/cooling applications have gained significant ground during the last three decades, with many research activities on the subject.