The fire won't burn because the flue is blocked up.因烟道堵塞火烧不起来.The flue has become sooted up.烟道里都是黑灰.If the flue overdraws, all the heat goes right up the chimney.如果风管抽风过度的话, 热量就会从烟囱直接跑掉了....
If the flue overdraws, all the heat goes right up the chimney.如果风管抽风过度的话, 热量就会从烟囱直接跑掉了.The flue has become sooted up.烟道里都是黑灰.The fire won't burn because the flue is blocked up.因烟道堵塞火烧不起来.Flue gas desulfurization is ...