Using tables from the National Fuel Gas Code or our Sizing & Application Guide, determine the diameter of venting required. The Sizing & Application Guide also offers tips on good design including multi-appliance system sizing and design. The System Design and Installation Guide is an additional resource.
The tee cap provides closure for the branch of the trunk of the tee.
Model | Size |
---|---|
3ETC | 3" |
4ETC | 4" |
5ETC | 5" |
6ETC | 6" |
7RTC | 7" |
8RTC | 8" |
9RTC | 9" |
10RTC | 10" |
Model | Size | A | B |
---|---|---|---|
3ET | 3" | 7 1/8" | 4 1/8" |
4ET | 4" | 8 7/8" | 4 5/8" |
5ET | 5" | 10" | 5 1/4" |
6ET | 6" | 11 1/2" | 5 3/4" |
7RT | 7" | 13" | 6 1/2" |
8RT | 8" | 14" | 6 7/8" |
9RT | 9" | 15" | 7 3/4" |
10RT | 10" | 16" | 8 1/16" |
12RT | 12" | 17 9/16" | 9 3/4" |
14RT | 14" | 24" | 11 3/4" |
16RT | 16" | 26" | 13" |
18RT | 18" | 28 1/2" | 14 1/4" |
20RT | 20" | 30" | 15 1/2" |
22RT | 22" | 33" | 16 3/4" |
24RT | 24" | 36" | 18" |
26RT | 26" | 38" | 19" |
28RT | 28" | 40" | 20" |
30RT | 30" | 42" | 21" |