High temperature water - source heat pump can reclaim loss - grade heat that is produced when energy - changed device such as boiler is operating , anti the return water of district heating supply system is heated 摘要利用高溫水源熱泵設備可回收鍋爐等能量轉化設備產生大量的低溫馀熱,提高其溫度用于直接供熱。