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option 1: Two seperated furnances and seperated control' ~7 s2 R; q) x, f$ J& ^
(for big house > 3000 ft) - d2 E0 |6 L! O; D1 n( i' xoption 2: One furnance with Zone Control device + z+ O& A% S! m& H
(three zones or fours zone will be good) - total efficiency will be higher. c# u, H, }, [
3 f( m% `7 S# c% l% S! `3 A3 V FTotal 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?4 D7 Q! j( b/ b" y2 w- @
6 d* Q+ t# h" k4 o; ` ) S( P1 H. ?4 d! n, u2 d$ Loption 1: Two seperated furnances and seperated control 9 x3 W+ A9 ?; `" h4 k. q5 \ (for big house > 3000 ft)8 c" L' i- H: r
option 2: One furnance with Zone Control device 9 p h- y3 m' X3 `; ^ (three zone ... : ]; f- S7 j# y十年移民路_ 发表于 2011-3-29 06:36 [/quote]