User Manual

10
Spruce Use, Care, and Installation Guide
SPRUCE
INSERT
PRO
Installation Instructions
Ducting Options
► Use single wall rigid metal ductwork only.
► Fasten all connections with sheet metal screws and tape all joints w/ certified Silver Tape or Duct
Tape.
Fire Hazard: NEVER exhaust air or terminate ductwork into
spaces between walls, crawl spaces, ceilings, attics, or garages.
All exhaust must be ducted to the outside, unless using the
recirculating option.
WARNING
Side wall cap
w/ gravity damper
Side wall cap
w/ gravity damper
Roof pitch w/
flashing & cap
Sot or crawl space