A heating unit used during extremely cold weather to assist the GSHP when it cannot provide all the heat required. 在寒冷氣候下地源熱泵不能提供需要的所有熱能時(shí)起輔助作用的熱設備。
And the energy-saving ground-source heat pump construction technology is utilized for the first time in Yueyang and will be promoted among other provinces and cities in China. 地源熱泵施工技術(shù)節能環(huán)保，在岳陽(yáng)屬于首次，在國內處于推廣階段。
