1#feinet2001 6 q+ t+ C: y7 S$ Y& l2 L. d- n 6 x- z! j4 G R5 t8 O% @option 1: Two seperated furnances and seperated control 1 ]' p+ P6 x: L2 a7 I4 C (for big house > 3000 ft)/ P$ x) x; l/ l: @' L$ \( ]1 i
option 2: One furnance with Zone Control device 8 S4 p4 F% D* a" j$ ]' u% ~3 ~
(three zones or fours zone will be good) - total efficiency will be higher. C2 F9 p- @2 ^