Vermont Castings DVRT41 Homeowner's Installation And Operating Manual page 21

Typical Roof
Support
Application
Fig. 42 Venting supports.
Fig. 43 Minimum termination to roof clearance.
10006740
Typical Ceiling
Support
Application
FP1184
Min.
2' (610 mm)
FP1185
DVRT41Direct Vent Gas Fireplace
Fig. 44 Roof flashing.
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
21