& k. D8 e) F" h: J+ aoption 1: Two seperated furnances and seperated control' e4 G. F: Z; o9 E( f5 H# k8 f7 Y
(for big house > 3000 ft) 2 V0 ~) L' {6 {option 2: One furnance with Zone Control device 0 q; y! q) `/ b J- Z* x7 Y- T (three zones or fours zone will be good) - total efficiency will be higher4 L) z# G( ^9 ~4 D j
8 V7 t8 r2 n. T$ J# a
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?% u( q# T" m# d
- M+ y$ ~7 Z! x
9 A& w0 b, Q; q- b! a2 O! S! N6 ]& r
option 1: Two seperated furnances and seperated control3 M F$ h& y+ E) @
(for big house > 3000 ft)( M0 m+ Z, ~$ Q- D, I
option 2: One furnance with Zone Control device 8 d8 k. M d% E# d; e! e* k: W
(three zone ...+ j2 N: r$ Y* U# x2 h7 H* K( S
十年移民路_ 发表于 2011-3-29 06:36 [/quote]