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option 1: Two seperated furnances and seperated control 2 S3 C' v4 n9 Z' v (for big house > 3000 ft) 4 A# R, d; g4 y g* A- Woption 2: One furnance with Zone Control device 7 S l- t6 K$ k0 V (three zones or fours zone will be good) - total efficiency will be higher ; C+ w4 N3 d( ^- N2 v" U6 ]% S. n: p7 B* F
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? P: M/ m' A4 T; F0 S& p! B: X. Z" }0 l# c
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option 1: Two seperated furnances and seperated control ^3 u- p# G" X F
(for big house > 3000 ft)5 ~# {: k( ? d8 }/ O0 c x
option 2: One furnance with Zone Control device - r% r) R" K+ g9 e+ F8 v) h (three zone ... N. P% s6 m8 G. r+ a9 G# @十年移民路_ 发表于 2011-3-29 06:36 [/quote]