Installation guide

Table 9--Minimum Vent Heights

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.

MiNiMUM VENT MiNiMUM VERTICAL VENT

FURNACE VENT FURNACE

DIAMETER HEIGHT

ORIENTATION ORIENTATION iNPUT (BTUH/HR) IN. (rnm)* FT. (M)**

Vent elbow left, then 154,000

132,000 5 (127) 12 (3.6)

Downfiow up Fig. 32 110,000(036/- 12 only)

Vent elbow right, 154,000

Horizontal Left then up Fig. 35 132,000 5 (127) 7 (.65)

Vent Elbow up 154,000

Horizontal Left Fig. 36 132,000 5 (127) 7 (,65)

Horizontal Left Vent elbow right

Fig. 37 154,000 5 (127) 7 (.65)

Vent elbow up then 110,000

Downfiow left Fig. 30 (036/-12 only) 5 (127) 10 (3.0)

Vent elbow up, then 110,000

Downfiow right Fig. 33 (036/-12 only) 5 (127) 10 (3.0)

4 in. (102 mm) inside casino or vent guard

** Including 4 in. (102 mm) vent section (s)

NOTE: All vent configurations must also meet National Fuel Gas Code (NFGC) venting requirements

NOTE: For all unlisted vent configurations, refer to National Fuel Gas Code (NFGC) venting requirements.

_ o_

SEE NOTES: 1,2,4,7,8,9

on the page following

these figures

Fig. 28 - Upflow Application-Vent Elbow Up

A03208

SEE NOTES: 1,2,3,4,7,8,9

on the pages following

these figures

A03209

Fig. 29 - Upflow Application-Vent Elbow Right