建筑节能是一项复杂的系统工程,涉及规划设计、建设施工、建筑节能产品等多个环节,甚至延伸到整个建筑的全周期。降低居住建筑日常运转耗能是建筑节能的主要有效途径之一。本文重点探讨生活用水系统在设计阶段用水设备和器具的选型、施工中的费用和设备运行的工况。 Building energy efficiency is a complex system engineering, involving many aspects of planning and design, construction and construction, energy-saving building products, and even extended to the entire building of the whole cycle. Reducing the daily energy consumption of residential buildings is one of the main effective ways to save energy. This article focuses on domestic water system in the design phase of water equipment and equipment selection, construction costs and equipment operating conditions.