In Japan, winter is the season of fire disasters. According to Tokyo Fire Department, they counted 748 fires caused by heaters during 2009-2013 in Tokyo, and electric heaters were most dangerous heaters to cause fires. The following shows the number of fires caused by heaters, by the type of heater.
Figure : What Heater Causes Fires in Tokyo 2009-2013
|Type of heater||Number of fires|
Source is a public relations paper "Tokyo Shobo (とうきょう消防) No. 16", issued by Tokyo Fire Department on 2015 Feb. 22.