Installation & Operation Manual
14
2
Venting
Vent Materials:
Category II/IV Vent Material Suppliers:
Category II/IV flue pipe materials and vent adapters (see FIG. 2-1) can be obtained from the following manufacturers:
Heat-Fab Inc.,
Saf-T CI Vent with AL29-4C stainless steel
Protech Systems Inc.,
Fas N Seal Vent with AL29-4C stainless steel
Flex-L International Inc.,
StaR 34 Vent with AL29-4C stainless steel
Metal-Fab Inc.,
Corr/Guard Vent with AL29-4C stainless steel
Z-Flex,
Z-Vent with AL29-4C stainless steel
Or other listed Category IV vent systems suitable for a condensing, positive pressure, gas fired appliance.
A Category IV flue
MUST
have all vent joints and seams sealed gastight and have provisions for a drain to properly collect and
dispose of condensate that may occur in the venting system.
*
Figure 2-1_Category IV Vent Adapter
Increaser
Connector
Figure 2-2_Category IV to II Conversion Kit
TABLE - 2A
FLUE ADAPTER SIZES
MODEL
FLUE ADAPTER SIZE
VWH0500
4"
VWH0750
5"
VWH1000
6"
VWH1500
6"
VWH2000
8"
TABLE - 2B
CATEGORY IV TO CATEGORY II
CONVERSION KITS
MODEL
FLUE SIZE
KIT NUMBER
VWH0500
4" to 7"
9910116000
VWH0750
5" to 9"
9910116001
VWH1000
6" to 10"
9910116002
VWH1500
6" to 8"
9910116003
VWH2000
8" to 10"
9910116004
*
Note:
The manufacturer of the selected vent material can also provide a vent adapter to connect the vent material to the VF Series
vent connection.
