General Survey on Residents' Awareness and Satisfaction Degree toward District Heat Supply for Houses

在本研究的第一部分，我们从安全、健康、便利和经济的角度对东京23区实行集中供热和供冷的7个区高层住宅区的居民满意度进行了问卷调查。结果表明，居民对安全的满意度极高。家家户户都没有热源机，居民们很满意。从满意度到方便性，居民使用小区供热供冷终端设备比较方便。从经济满意度来看，有部分地区居民对供热收费不满意的比例超过50%。但居民对经济的满意程度与家庭供热费用之间没有相关性。当他们获得了足够的区域供热和供冷优势时，即使每月支付的金额很高，他们也对热费感到满意。在本研究的第二部分，我们对一栋楼一台热源机的“建筑中央系统”和一套住房一台热源机的“户型中央系统”的居民居住满意度进行了问卷调查。它们之间的一个很大的区别是每个住房单元的门前或阳台前是否有热源机。回答“我不在乎热源机的存在”的居民在房屋单元中央系统中占52%，在大厦中央系统中占72%。大楼中央系统中80%的住户对供暖收费不满意。

In the 1st part of this research, we did the questionnaire survey concerning the residents' satisfaction degree seen from the view point of safety, health, convenience, and economy in the high rise housing complex in seven districts where the district heating and cooling were introduced in Tokyo 23 wards. As a result, residents' satisfaction degree to safety was extremely high. The residents are satisfied with the fact that each household does not have the heat source machine. It is easy for the residents to use terminal devices of the district heating and cooling from the viewpoint of satisfaction degree to convenience. From the viewpoint of satisfaction degree to economy, there were districts where the residents who were dissatisfied with the heat charge exceeded 50%. However, there was no correlation between the residents' satisfaction degree to the economy and heat charge of their households. When they obtain enough advantages of district heating and cooling, they are satisfied with the heat charge even if the amounts they paid every month are high. In the 2nd part of this research, we did the questionnaire survey of satisfaction degree of residents living in apartment houses with "Building Central System" which has one heat source machine in one building and in apartment houses with "Housing Unit Central System" which has one heat source machine in one housing unit. A large difference between them is whether there is a heat source machine in front of a door or verandas of each housing unit. Residents who answered "I do not care the existence of heat source machine" were 52% in the Housing Unit Central System, and 72% of residents in the Building Central System. 80% of residents of the households in the Building Central System were dissatisfied with the heat charge.