CSA 4.3B-2000
Addenda 2 to ANSI Z21.10.3-1998/CSA 4.3-M98 and ANSI Z21.10.3A-2000/CSA 4.3A-M00, Gas Water Heaters – Volume III – Storage Water Heaters with Input Ratings Above 75,000 Btu Per Hour, Circulating and Instantaneous
standard by CSA Group, 01/17/2001