1#feinet2001 0 ^4 s4 T7 m8 _. C, `2 _% v ( O, y! C* f( I& b6 ]$ Doption 1: Two seperated furnances and seperated control 8 S _% Y: E% I6 v8 w' L* ~7 r. p/ i (for big house > 3000 ft) # R) S% P I4 f# C1 }1 z9 p) R3 ~% Loption 2: One furnance with Zone Control device 5 z$ y! u0 R3 @+ H, Y
(three zones or fours zone will be good) - total efficiency will be higher( t+ t1 Y1 i( O- y$ X
1 L( J, |' B+ I, V; \
Total cost is not big difference.