* t8 n, s$ t, E+ P: V% Q/ W+ Moption 1: Two seperated furnances and seperated control 3 I8 |* e! {- } b (for big house > 3000 ft) / q0 I6 B% f; e* o; [; x: Hoption 2: One furnance with Zone Control device ' }7 o+ b5 o* A# I
(three zones or fours zone will be good) - total efficiency will be higher - e$ o; X X. `, l5 t , n6 r8 r8 g$ P( G) c( zTotal 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? & p3 i- L* `! ?* @, Q4 Z 8 A2 P! U9 h7 z, ] 9 D R& @# A3 }option 1: Two seperated furnances and seperated control1 R$ H2 P) P1 c; c
(for big house > 3000 ft) % e+ `5 T4 i% L b/ u% zoption 2: One furnance with Zone Control device ) V4 C! P# g" f2 A (three zone ... 1 f! c. D; x' n% S十年移民路_ 发表于 2011-3-29 06:36 [/quote]