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option 1: Two seperated furnances and seperated control( A5 b; z- r& L: ?# k7 @0 z
(for big house > 3000 ft) 0 I; P8 I; X4 g6 m/ I0 V8 j* ~option 2: One furnance with Zone Control device % Z, ^2 t4 y; l$ N
(three zones or fours zone will be good) - total efficiency will be higher! H! u% u7 ~( c. Q- ?( u6 H
. Q6 K/ M( {: T& h4 F8 ]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?3 H- g) X+ s: s5 q! W+ c0 ~
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option 1: Two seperated furnances and seperated control ) U0 \' d o2 x( o+ P3 x# e (for big house > 3000 ft)2 Q$ T+ n: c) Z& k
option 2: One furnance with Zone Control device + \6 g x# x9 j# D (three zone ... - ]; K; I' P: ^十年移民路_ 发表于 2011-3-29 06:36 [/quote]