USSC Hotblast 1357M Owner's Manual page 25

INSTALLATION A
COLD AIR
RETURN
FILTER BOX
INSTALLATION C
COLD AIR
RETURN
PLENUM TOP
(OPTIONAL)
FILTER BOX
Appendix
TO EXISTING
DUCT WORK
WARM AIR
EXISTING FURNACE
SOLID FUEL
FURNACE
COLD AIR
RETURN
TO EXISTING
DUCT WORK
EXISTING
FURNACE
SOLID FUEL
FURNACE
25
INSTALLATION B
PLENUM
COLLECTOR
BOX
FILTER BOX
WARM AIR
TO EXISTING
DUCT WORK
WARM AIR
EXISTING
FURNACE
SOLID FUEL
FURNACE