Napoleon Castlemore GDS26-1 Manuel D'installation Et D'opération page 12

venting
EN
REAR VENT
20" (50.8cm)
MAXIMUM
* See "VENTING" section
12
W415-2360 / A / 10.31.19
29 1/8"
(74cm)
MINIMUM
PLUS RISE*
16" (40.6cm)
MINIMUM
40 FT
(12m)
MAXIMUM
3 FT
(1m)
MINIMUM