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option 1: Two seperated furnances and seperated control! T: m$ {0 l+ B( | o
(for big house > 3000 ft) , y U o7 ?. }0 ?1 i2 ^option 2: One furnance with Zone Control device L% c; {6 w2 M% I* d (three zones or fours zone will be good) - total efficiency will be higher+ E9 V' F5 D- R* ?
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Total cost is not big difference.
Zone Control device, 会不会象他们说的,互相影响呢? 如果房子盖好后,再自行安装,容易实现吗?: R7 q5 B' u: ]" c1 m
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option 1: Two seperated furnances and seperated control 0 @$ t. i2 W/ i4 G. U X) g (for big house > 3000 ft) # {$ h9 [( }+ {0 [" o; ~option 2: One furnance with Zone Control device , J$ @# }, \/ y) H% F (three zone ...9 J3 J* Y( c4 M* I# G' v
十年移民路_ 发表于 2011-3-29 06:36 [/quote]