■用途

　　冬季隨著環(huan)(huan)境溫(wen)(wen)(wen)度(du)(du)的降低(di)，中(zhong)央空調的制(zhi)熱效率也隨之降低(di)，當環(huan)(huan)境溫(wen)(wen)(wen)度(du)(du)與標準(zhun)工(gong)況(kuang)溫(wen)(wen)(wen)度(du)(du)相差校大(標準(zhun)工(gong)況(kuang)室(shi)外溫(wen)(wen)(wen)度(du)(du)為(wei)7℃)溫(wen)(wen)(wen)度(du)(du)低(di)于(yu)4℃時(shi)，中(zhong)央空調將不能提(ti)供房間所需的溫(wen)(wen)(wen)度(du)(du)，為(wei)了補(bu)充不足的熱量，就(jiu)需要在原有(you)供熱設(she)備(bei)的基礎上增加輔(fu)助加熱器。

■優點

　　熱效率高、安全(quan)性(xing)(xing)高、結構(gou)合理、防腐性(xing)(xing)強，使用壽命(ming)長等。