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VII. Venting (continued)
Table 10: Combustion Air and Flue Gas Flow Rates
AMP
Vent
Model
Dia. (In.)
1000
1250
8
1500
2000
2500
10
3000
3500
12
4000
Notes:
Flow rates are based on the combustion of natural gas.
Table 11: Approved Vent Manufacturers and Materials
Make
Heat Fab
Z-Flex (Nova Flex Group)
DuraVent
Centrotherm
*Factory supplied flue connection. Adapters are required to transition to alternate vent
materials or manufacturers.
Table 12: Stainless Steel and CPVC Vent Adapters
Vent Diameter (in.)
8
10
12
At Maximum Input Rate
Flue Gas Flow,
Combustion Air,
ACFM @ 35%
Excess Air, 180
F
Excess Air, 60
0
282
352
423
564
705
846
987
1129
Material
Stainless Steel
Stainless Steel/
Polypropylene
Polypropylene
Polypropylene
Stainless Steel to CPVC
Thermal Solutions Part #
109510-01
109510-02
109510-03
Flue Gas Flow,
SCFM @ 35%
ACFM @ 35%
F
Excess Air, 180
0
212
265
318
424
531
637
743
849
Model
Saf-T Vent EZ Seal*
Z-Vent/Z-DENS
PolyPro Single Wall Rigid
InnoFlue SW Rigid
Heat Fab to Z-Vent
Z-Flex Part #
2SVSHF08
2SVSHF10
2SVSHF12
23
At Minimum Input Rate
Combustion Air,
SCFM @ 35%
F
Excess Air, 60
0
56
42
70
53
84
63
113
85
141
106
169
127
197
148
225
170
F
0
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