Sources learnt from Hefei Natural Gas Group, equipments for natural gas will be installed in the north district of Hefei city from September 24 to 25, and a total of over 30,000 residents will benefit from it. The installment is the largest in scale with the most natural gas users since the gas was introduced to Hefei last year. Local residents could dial the blue flame hot line -5133333 around the clock for consultations. (Wang Jing)