Fully Modulating Gas-Fired Hydronic and Combination Boiler/Water Heaters
Design certified and tested by International Approval Services (American & Canadian Gas Associations)
Material specifications per Section IV, ASME code
Maximum working pressure - water 30 P.S.I., ASME rated
Hydrostatic test pressure at factory - 60 P.S.I.
Natural or propane gas
Minimum gas supply pressure - 4" w.c.