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option 1: Two seperated furnances and seperated control ( z, ?* t4 ~5 n) c (for big house > 3000 ft) ! C/ @# f, _3 H# |' C# uoption 2: One furnance with Zone Control device 2 B5 J- r0 X" y1 m
(three zones or fours zone will be good) - total efficiency will be higher 3 G# i0 ]5 P- U0 l7 \; ^2 q; ]! b) v& i9 n
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?* O t9 y( R8 K/ b1 U" O* X
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option 1: Two seperated furnances and seperated control 0 Z# \2 H& P, N) V# I W/ u (for big house > 3000 ft) 8 W. ]" K* ], loption 2: One furnance with Zone Control device . T6 I: Y- [: [* x1 ?
(three zone ... 6 K1 j4 v0 Q! [4 [' L十年移民路_ 发表于 2011-3-29 06:36 [/quote]