回複：我家有個也封口，天冷室內暖汽會從那裏往外包跑，燒壁爐不會增加多少熱能，等於燒錢

you are talking about the old style furnace, the new furnace will heat up your whole house with fan carry the hot air around

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• YES ,MY HOUSE IS 54 YEAR OLD -motorcycle- ♂ (0 bytes) () 01/05/2012 postreply 10:45:37