A centralized heat recovery system is one in which the heat recovery unit is located in one central location, typically in a mechanical room or similar space. This type of system is usually used in larger buildings or complexes, and is designed to serve multiple rooms or spaces. It is typically more complex and requires more maintenance than a decentralized system.
A decentralized heat recovery system, on the other hand, has the heat recovery unit located within or near the space that it is serving. This type of system is typically used in smaller buildings or spaces, and is designed to serve one or a few rooms or spaces. It is typically simpler and requires less maintenance than a centralized system.
A decentralized heat recovery system is more suitable for smaller residential buildings or commercial spaces, while a centralized system is typically used in large commercial or industrial buildings.