Gas-fired induced draft hot water boiler (72 pages)
Summary of Contents for Crown Boiler BWC150
Page 5
National Fuel Gas Code Standard for Controls and Safety Devices for Automatically Fired Boilers I=B=R...
Page 7
National Fuel Gas Code Example: A BWC225 and a water heater are to be installed in a room measuring 6ft – 3 in x 7ft with an 8 ft ceiling. The water heater has an input of 30000 BTU/hr: Total input in thousands of BTU/hr = (225000 BTU/hr + 30000 BTU/hr) / 1000 = 255 MBTU/hr Volume of room = 6.25 ft x 7 ft x 8 ft = 350 ft3 6LQFH LV OHVV WKDQ WKH ERLOHU URRP LV D FRQ¿QHG VSDFH...
Page 9
Example: A 3” vent system is planned for a horizontally vented BWC150 which has the following components: 2 ft vertical pipe 1 90 elbow 5 ft horizontal pipe 1 90 elbow 3 ft horizontal pipe 1 45 elbow 4 ft horizontal pipe 1 termination elbow...
Page 10
The Vent Option #1 column in Table 6.2a describes a horizontal direct vent system using 3” vent pipe. From this FROXPQ ZH VHH WKDW D %:& PD\ KDYH D YHQW OHQJWK RI XS WR IW 7KH ¿UVW HOERZ DQG WKH WHUPLQDWLRQ HOERZ are not considered.