以下是引用selcoon在2006-10-26 13:17:00的发言：

以下是引用iamflying在2006-10-26 0:39:00的发言 ：
each apartment can be different. You can call local utility company, and provide the address.  They usually can give you the average for last winter for that apartment.  That can be a very good reference unless no one lives there last winter.

多谢，真是非常有用的办法，按照你说的打电话过去问，以前的用户年平均一个月100，冬天要150，不知道以前的用户是不是24小时恒温的加热。

You have to keep  the heat on for all winter long, the most you can do is to lower the temperature for a little bit when you are out for the day.

Never shut off the heat completely during winter time since the water can freeze in the piples and break them, which can cause a disaster and costs tons of money to repair.