User Guide

11
MODEL BTR(C)-120
Input: 120,00Btuh Total Vent Height (Feet)
Draft Hood: 5” 6 8 10 15 20 30 50 100
Input Btuh Rise Vent Connector Diameter (inches)
120,000 1 Ft. 7 7 766666
120,000 2 Ft. 6 6 666665
123,000 3 Ft. 6 6 666555
Number Combined Input
of Heaters in Thousands of Btuh Manifold and Common Vent Diameter (In inches)
2 240 108877767
3 360 101010108877
4 480 12 12 12 10 10 10 8 8
MODEL BTR(C)-154
Input: 154,000 Btuh Total Vent Height (Feet)
Draft Hood: 6” 6 8 10 15 20 30 50 100
Input Btuh Rise Vent Connector Diameter (in inches)
154,000 1 Ft. 8 8 777777
154,000 2 Ft. 7 7 777666
154,000 3 Ft. 7 7 766666
Numbers Combined Input
of Heaters in Thousands of Btuh Manifold and Common Vent Diameter (in inches)
2 308 10101088777
3 462 12 12 12 10 10 10 8 8
4 618 14 14 12 12 12 10 10 10
MODEL BTR(C)-180, 197, 198, 199, 200
Input: 180,000, 190,000, 199,000 Btuh Total Vent Height (Feet)
Draft Hood: 6” 6 8 10 15 20 30 50 100
Input Btuh Rise Vent Connector Diameter (in inches)
180,000 1 Ft. 8 8 888777
190,000 - 8 888877
199,000 - - 888887
180,000 2 Ft. 8 8 777777
190,000 8 8 877777
199,000 8 8 887777
179,000 3 Ft. 7 7 777766
190,000 8 7 777766
197,000 8 7 777776
199,000 8 8 777776
Number of Combined Input
Heaters in Thousands of Btuh Manifold & Common Vent Diameter
358 101010108877
2 380 12 10 10 10 10 8 7 7
394/398 12 10 10 10 10 8 8 7
537 14 12 12 12 10 10 10 8
3 570 14 12 12 12 10 10 10 10
591/597 14 14 12 12 12 10 10 10
716 14 14 14 12 12 12 10 10
4 760 16 14 14 14 12 12 10 10
788/796 16 14 14 14 12 12 12 10
TYPE B GAS VENT
Multiple Gas Fired Tank-Type Heaters
When venting mutiple tank type heaters using Type B
vent pipe, follow the installation diagram (figure 8) and
tables below which give sizing and data based upon
NFPA 54/ANSI Z223. 1992.
TECHNICAL DATA VENTING, TABLE 3