Specifications are subject to change without notice.
27
441 01 3400 02
Caution!! For the following applications, use the minimum vertical vent heights as specified below. For all other applications,
follow exclusively the National Fuel Gas Code.
FURNACE
ORIENTATION
VENT ORIENTATION
FURNACE INPUT
(BTUH/HR)
MIN. VENT
DIAMETER
IN. (mm)*
MIN. VERTICAL VENT
HEIGHT
FT. (M)**
Downflow
Vent elbow left, then up
Fig.
32
154,000 132,000
110,000
5 (127)
12 (3.6)
Horizontal Left
Vent elbow right, then up
Fig.
35
154,000 132,000
5 (127)
7 (2.1)
Horizontal Left
Vent Elbow up
Fig.
37
154,000 132,000
5 (127)
7 (2.1)
Horizontal Left
Vent elbow right
Fig.
36
154,000
5 (127)
7 (2.1)
Downflow
Vent elbow up then left Fig. 30
110,000
5 (127)
10 (3.0)
Downflow
Vent elbow up, then right
Fig. 33
110,000
5 (127)
10 (3.0)
NOTE: All vent configurations must also meet National Fuel Gas Code venting requirements NFGC
*4 in. (102 mm) inside casing or vent guard
**Including 4 in. (102 mm) vent section(s)
SEE NOTES: 1,2,4,7,8,9
on the page following
these figures
A03208
Fig. 28 -- Upflow Application--Vent Elbow Up
SEE NOTES: 1,2,3,4,7,8,9
on the pages following
these figures
A03209
Fig. 29 -- Upflow Application--Vent Elbow Right