! p+ Q$ v, {' q7 l6 s' Foption 1: Two seperated furnances and seperated control0 p3 I5 L/ D$ ~5 l8 ?6 Q
(for big house > 3000 ft) 3 j" V0 \) a2 P: `3 R! uoption 2: One furnance with Zone Control device ! A, d" w4 B* o- i; F (three zones or fours zone will be good) - total efficiency will be higher" n* ?4 z0 E) {3 _6 e
. F1 H2 T- ~' h# l) i! \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?7 [3 N$ x; E' w% f3 s
5 X, M9 Q! ~4 H4 e2 a \9 c% W
) Q1 o3 h1 |) Roption 1: Two seperated furnances and seperated control: F6 F+ l% ]# ~0 O8 K
(for big house > 3000 ft) & N5 a3 v+ N7 K yoption 2: One furnance with Zone Control device 0 F4 K6 B0 A2 ?' X- U2 r3 I* s5 d" F
(three zone ... ?9 [ s8 v. u+ [. x
十年移民路_ 发表于 2011-3-29 06:36 [/quote]