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option 1: Two seperated furnances and seperated control2 R7 b( p+ N, z7 g# @
(for big house > 3000 ft) + o8 n, V X9 h/ Ooption 2: One furnance with Zone Control device 3 E5 m2 P+ K7 Q) |3 S: B- @
(three zones or fours zone will be good) - total efficiency will be higher% t9 j- T: }9 E1 I+ o2 j+ d
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? * m4 [# T0 Z! E% P4 u! [. e9 d8 u$ G+ A0 M/ a, I& E
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option 1: Two seperated furnances and seperated control5 N9 e$ _7 L; J/ n5 b: b( h T, g; G
(for big house > 3000 ft)0 X) I. t5 p* O6 e( @5 G
option 2: One furnance with Zone Control device % ?7 _5 s2 r9 r: j2 Z% e (three zone ... t S N9 N* `十年移民路_ 发表于 2011-3-29 06:36 [/quote]