
GSA
Gas-Fired Steam Boilers –
Boiler Manual
31
Part Number 550-110-738/0703
15 Ratings
Notes
1. Based on standard test procedures prescribed by the United States Department of
Energy.
2. Net I=B=R ratings are based on net installed radiation of sufficient quantity for the
requirements of the building and nothing need be added for normal piping and pickup.
Ratings are based on a piping and pickup allowance of 1.333. An additional allowance
should be made for unusual piping and pickup loads.
3. See information at right for model number suffixes. Letters shown are model number
suffixes. An “N” after the model number designates natural gas. An “L” designates
propane gas.
4. Contact your local dealer regarding information and parts for high altitude applications.
DOE