# j0 P/ l' u' G f$ ]! uoption 1: Two seperated furnances and seperated control* E& s# Z$ D$ w8 P# m
(for big house > 3000 ft) . o% R+ p# I( k/ b* t9 ?* Z+ coption 2: One furnance with Zone Control device 3 e. _4 x; y& ]8 U& k4 h (three zones or fours zone will be good) - total efficiency will be higher6 O4 I4 n$ V9 K
. h) |. E# q+ L# q0 m; C8 R
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? 5 k0 I' t$ @. w6 n- d1 i) Q# m( a0 a x! |) E n q
+ Q; v: ]. V) t0 |option 1: Two seperated furnances and seperated control + U+ h1 q) M8 T1 m4 B; c" b! a, ? (for big house > 3000 ft) & u2 ^+ l$ U( c toption 2: One furnance with Zone Control device & g2 F9 U' Y8 X: T( @" F$ F, H& u, I (three zone ...+ x7 X9 M+ [( V4 C! n1 ]3 ~& |! Z
十年移民路_ 发表于 2011-3-29 06:36 [/quote]