Dongfeng energy-saving furnace distribution department. Nanyang Dongfeng energy-saving stove distribution office is a supermarket specializing in selling stoves, where you can buy them. Nanyang, formerly known as Wan, is located in the southwest of Henan Province, at the junction of Henan, Hubei and Shaanxi provinces. It is a basin surrounded by mountains on three sides and open in the south. It is named because it is located in Funiu Shan Zhinan, north of Hanshui River.