An accessory Vent Guard Kit, KGAVG0101DFG is REQUIRED
for downflow applications for use where the vent exits through the
lower portion of the furnace casing door. Refer to the Vent Guard
Kit Instructions for complete details.
The horizontal portion of the venting system shall maintain a
minimum of 1/4-in. upward slope per linear ft and it shall be
rigidly supported every 5 ft or less with metal hangers or straps to
ensure there is no movement after installation.
SIDEWALL VENTING
This furnace is not approved for direct sidewall horizontal venting
without the use of an add-on power venter.
Caution!! For the following applications, use the minimum vertical vent sections as specified below.
For all other applications, follow exclusively the National Fuel Gas Code.
FURNACE ORIENTATION
VENT ORIENTATION
FURNACE INPUT(BTU/HR)
VENT MINIMUM
DIAMETER (IN.)*
MINIMUM VERTICAL VENT HEIGHT (FT)**
Downflow
Vent elbow left, then up
Fig. 38
154,000
132,000
110,000(036/-12 only)
5
12
Horizontal Left
Vent elbow right,
then up
Fig. 41
154,000
132,000
5
7
Horizontal Left
Vent Elbow up
Fig. 42
154,000
132,000
5
7
Horizontal Left
Vent elbow right
Fig. 43
154,000
5
7
Downflow
Vent elbow up then left
Fig. 36
110,000
(036/-12 only)
5
10
Downflow
Vent elbow up, then right
Fig. 39
110,000
(036/-12 only)
5
10
NOTE: All vent configurations must also meet National Fuel Gas Code Venting requirements NFGC.
*4 in. inside casing or vent guard
**Including 4 in. vent section(s)
SEE NOTES: 1,2,4,7,8,9
A02069
Fig. 44—Horizontal Right Application-Vent Elbow
Right
SEE NOTES: 1,2,4,5,7,8,9
A02070
Fig. 45—Horizontal Right Application-Vent Elbow Left
then Up
Fig. 46—Horizontal Right Application-Vent Elbow Left
A02068
SEE NOTES: 1,2,4,5,7,8,9
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