Indoor temperature should reach 18℃ after the beginning of heating.

　　The indoor temperature should reach 18℃, the standard temperature after the beginning of heating. Users can apply for temperature measurement and request a refund if the temperature is below 18℃ which is caused by heating enterprises.

　　The central heating area in Ji’nan this winter has covered 190 million square meters, 155 million square meters in the urban area. Besides, clean energy heating by industrial waste heat, natural gas and electricity now takes more than 40%.