Zephyr ZMI-M90G - Manual (Page 5)

INSTALLATION
2
DUCTING
NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling,
attics or garages. All exhaust must be ducted to the outside.
Use Metal ductwork only.
Fasten all connections with sheet metal screws and tape all joints w/ certified Silver Tape or
Duct Tape.
Some Ducting Options:
WARNING: FIRE HAZARD
side wall cap
w/ gravity damper side wall cap
w/ gravity damper
Soffit or crawl space
Roof Pitch w/
Flashing & Cap