LG DLEX8000W Owner's Manual page 21

Venting requirement
Ductwork
Recommended
4"
(10.2 cm)
4"
(10.2 cm)
Use Only for Short
Run Installations
2 1 / "
2
(6.35 cm)
NOTE
ROUTING AND CONNECTING DUCTWORK
NOTE
Follow the guidelines below to maximize drying performance and
reduce lint buildup and condensation in the ductwork.
Ductwork and fittings are NOT included and must be purchased
separately.
the dryer.
reduce condensation and lint buildup on duct surfaces.
INSTALLATION INSTRUCTIONS
21