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option 1: Two seperated furnances and seperated control ) V% H# c" p2 J" F (for big house > 3000 ft)* d, x$ W2 [" E! B
option 2: One furnance with Zone Control device 7 G F! w* e6 H$ ~$ u } (three zones or fours zone will be good) - total efficiency will be higher % `" x% Z$ \7 P- F# z5 R& t) v7 j0 C( F [$ D8 X+ R8 P7 u
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?9 w/ l2 d& m q
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option 1: Two seperated furnances and seperated control& ^6 f, ~5 R9 _5 L
(for big house > 3000 ft) * Y& N: G, C. w( Boption 2: One furnance with Zone Control device / E7 @6 y: v9 c# |0 S (three zone ... , M+ @" q/ I) P# {) y* h& B, D十年移民路_ 发表于 2011-3-29 06:36 [/quote]