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option 1: Two seperated furnances and seperated control * E" @! S# Q$ i$ O$ N (for big house > 3000 ft)9 A( i! n- b) q" \
option 2: One furnance with Zone Control device & C! Y. R8 O& j. z0 @
(three zones or fours zone will be good) - total efficiency will be higher ) N2 N; j: C; J } 3 ]% j) w% p% Q- t9 ]8 ]! B# _; D; E. B& ATotal 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? & H6 E. y) q/ M7 d ) v' J1 F( v# n8 W; p , h1 P. }& K& h' g% `5 U6 aoption 1: Two seperated furnances and seperated control ' b0 H* r- Q {' K1 M (for big house > 3000 ft) 5 e3 N! v" S/ x" G+ Ioption 2: One furnance with Zone Control device . V" c9 I' [: j7 l (three zone ... # W; f/ q" E4 D0 w* a+ U! w十年移民路_ 发表于 2011-3-29 06:36 [/quote]