1#feinet2001 2 q: ?! b+ y4 Q8 V x, k' P" h& N' G K- s# b# @
option 1: Two seperated furnances and seperated control * m+ r. N* I1 i+ W (for big house > 3000 ft) ; ?/ }, N! q+ n2 j4 Q% x8 q! Joption 2: One furnance with Zone Control device . R: Y7 _; m9 G: a$ M; t7 @' k
(three zones or fours zone will be good) - total efficiency will be higher % C+ M/ Q+ @8 t' r8 t8 M( q+ x, f) h3 N3 E: S# [& Q
Total cost is not big difference.