kozy heat BIR-20-L, Installation And Operation Manual, Page: 23 / 50

#BIR-20-L R.5 June 2020 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 23
6.4 Vertical Terminations
NOTE: Attic insulation shields may be insulated using unfaced
insulation products listed as non-combustible per ASTM E 136.
The vent configurations listed below are shown with rigid pipe.
Flexible pipe may be used for approved venting configurations by vent
manufacturers listed in Section 6.1 Approved Vent Systems on page
21.Refer to vent manufacturer’s instructions.
Minimum / Maximum Vertical Venting:
3’ (914mm) minimum vertical length / 50’ (15.24m) maximum vertical
termination cap
Table 6.2, Recommended Restriction for Vertical Terminations
Fuel Vent
Configurations
Baffle Positions Restrictor Setting
Natural Gas Minimum
Vertical
Setting (5) Install Restrictor
Remove knockout(s)
Natural Gas Maximum
Vertical
Setting (5) Install Restrictor
Remove knockout(s)
Propane Minimum
Vertical
Setting (5) Install Restrictor
Remove knockout(s)
Propane Maximum
Vertical
Setting (5) Install Restrictor
Remove knockout(s)
DIAG.1 VERTICAL TERMINATIONS
36”
(914mm)
50’
(15.24m)
VERTICAL
TERMINATION CAP