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option 1: Two seperated furnances and seperated control . N7 B! u# \7 r2 Z c" k (for big house > 3000 ft)7 p0 @* D3 F9 f; x# Z, @# `6 j# y
option 2: One furnance with Zone Control device # s7 d7 N0 w5 W; [3 S) i2 R (three zones or fours zone will be good) - total efficiency will be higher: ^2 M$ e6 ~1 R
$ Q% O. x' x' G! T4 E7 BTotal 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? R& \1 A6 V" X4 T( M) D3 u# Q
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option 1: Two seperated furnances and seperated control # p8 j. q, S$ {( I (for big house > 3000 ft) 2 A' [7 N5 `: loption 2: One furnance with Zone Control device / V! \4 t) _+ k9 i% t5 ^
(three zone ...$ W' ^$ [+ I1 a6 ]3 \
十年移民路_ 发表于 2011-3-29 06:36 [/quote]