A.O. Smith BTI 120 Water Heater User Manual


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MODEL BTI-250
Input: 250,000 Btu/hr Total Vent Height (Feet)
Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100
Input Btuh/hr Rise Vent Connector Diameter (Inches)
250,000 1 Ft 8 8 7 7 7 6 6 6
250,000 2 Ft 7 7 7 7 6 6 6 6
250,000 3 Ft 7 7 7 7 6 6 6 6
Number Combined Input
BTI 250 of Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)
2 500,000 9 9 9 8 8 7 7 7
3 750,000 12 12 10 10 10 9 8 8
4 1,000,000 14 14 12 12 10 10 9 9
MODEL BTI-275
Input: 275,000 Btu/hr Total Vent Height (Feet)
Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100
Input Btu/hr Rise Vent Connector Diameter (Inches)
275,000 1 Ft 8 8 7 7 6 6 6 6
275,000 2 Ft. 8 8 7 7 6 6 6 6
275,000 3 Ft 7 7 7 7 6 6 6 6
Number of Combined Input
BTI 275 Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)
2 550,000 10 9 9 8 8 8 7 7
3 825,000 12 12 12 10 9 9 8 8
4 1,100,000 14 14 14 12 12 10 9 9
MODEL BTI-310
Input: 310,000 Btu/hr Total Vent Height (Feet)
Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100
Input Btu/hr Rise Vent Connector Diameter (Inches)
310,000 1 Ft. 9 8 8 8 7 7 6 6
310,000 2 Ft. 8 8 8 7 7 7 6 6
310,000 3 Ft. 8 8 8 7 7 7 6 6
Number of Combined Input
BTI 310 Heaters in Thousands of Btu/hr Manifold & Common Vent Diameter
2 620,000 10 10 9 9 8 8 7 7
3 930,000 14 12 12 12 10 9 9 8
4 1,240,000 14 14 14 12 12 12 10 9
MODEL BTI-366, 400
Input: 366,000, 399,000 Btu/hr Total Vent Height (Feet)
Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100
Input Btu/hr Rise Vent Connector Diameter (Inches)
366,000 1 Ft 9 9 9 8 8 8 8 8
399,000 1 Ft 10 9 9 9 8 8 8 8
366,000 2 Ft 9 9 8 8 8 8 8 8
399,000 2 Ft 9 9 9 8 8 8 8 8
366,000 3 Ft 9 8 8 8 8 8 8 8
399,000 3 Ft 9 9 8 8 8 8 8 8
Number of Combined Input
BTI Heaters in Thousands of Btu/hr Manifold & Common Vent Diameter (Inches)
2 732,000 12 10 10 9 9 9 8 8
798,000 12 12 10 10 9 9 8 8
3 1,098,000 14 14 14 12 12 10 9 9
1,197,000 14 14 14 12 12 10 10 9
4 1,464,000 16 16 14 14 14 12 12 10
1,596,000 16 16 16 14 14 12 12 10
TECHNICAL DATA VENTING (Continued)
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