From China in Transition blog:
More than 10,000 people in Urumqi, Xinjiang, found their home freezing after the heat was stopped on Saturday. A coal-burning furnace providing heat for the area stopped working after heat company workers fed it with coals of poor quality. The company purchased these bad coals from some small coal mines, when its contract coal provider was short of supply, Xinhua reported.
The heat break lasted for nearly 96 hours, leaving thousands of people fighting cold in rooms of temperature lower than 10 degree Celsius, or about 50 degree Fahrenheit, while the out-door temperature was way below the freezing point. Some electronic heaters thus were sold out in many local stores during these days. The heat was resumed late Wednesday night. [Full Text]