![]() This water heater is more likely to have been manufactured in 1987 (within 6-8 years of 1985 code revision) as opposed to 2007. This water heater cannot have been manufactured prior to 1985.Ģ. 1985 is the year revision for ANSI Z21.10.1a This code is typically revised every 6-8 years, which indicates two common sense considerations.ġ. ![]() The ANSI code date indicates compliance with ANSI Z21.10.1a- 1985. In the photo example below, the letter "D" represents both 19. The ANSI code date is the most common key indicator to assist with this determination ( see our sample style 1 photo below). In order to accurately determine which 20 year cycle the letter may represent, one must also look at other determining factors. Please note that it is common to encounter a Bradford White® water heater that may outwardly appear to be either year designation. The date of production/manufacture or age of Bradford White® Water Heater(s) can be determined from the serial number.īradford White® utilizes a rotating 20 year letter cycle ( e.g., the letter "M" represents both 19 year of manufacture).
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