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option 1: Two seperated furnances and seperated control ) ^) X) G, x/ C( { (for big house > 3000 ft): k r: A& l. n
option 2: One furnance with Zone Control device / M9 T+ _: p: k' `7 Y: O- L
(three zones or fours zone will be good) - total efficiency will be higher8 I! }9 N, ^: h
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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? - C( g2 D2 O7 K* C! g7 ^0 i9 a2 v$ t' P" U6 F
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option 1: Two seperated furnances and seperated control 4 r4 B q2 P6 [2 {/ D# q7 l (for big house > 3000 ft) ' g- s* a" j" Q6 doption 2: One furnance with Zone Control device ( D2 v, Y+ O9 B, p
(three zone ... : s. \7 L" ?3 r8 n. ?& C( m+ p; c5 u十年移民路_ 发表于 2011-3-29 06:36 [/quote]