 鲜花( 19)  鸡蛋( 0)
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1# feinet2001
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! R2 t, P$ i" qoption 1: Two seperated furnances and seperated control
6 K: T' R! E- m: N/ I f (for big house > 3000 ft)' ~1 ` a( r5 z$ C
option 2: One furnance with Zone Control device
3 A, @/ X" f! M$ y3 x- V. p, X% Y (three zones or fours zone will be good) - total efficiency will be higher L. x1 N6 E( g8 m7 x; u
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Total cost is not big difference. |
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