COLD AIR RETURN
FILTER BOX
APPENDIX
INSTALLATION A
(U.S. ONLY)
TO EXISTING
DUCT WORK
WARM AIR
EXISTING
FURNACE
SOLID FUEL
FURNACE
24
COLD AIR RETURN
FILTER BOX
INSTALLATION A
(U.S. ONLY)
TO EXISTING
DUCT WORK
WARM AIR
EXISTING
FURNACE
SOLID FUEL
FURNACE
24