Zephyr Essentials Pisa ZPI-E24AG Guide D'utilisation, D'entretien Et D'installation page 9

WARNING FIRE HAZARD
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 single wall rigid Metal ductwork only.
Ducting Options Example
ductless
recirculating
roof pitch w/
flashing & cap
soffit or crawl space
7
side wall cap
w/ gravity damper
ductless
recirculating
soffit