如何查看Hot Water Tank热水器的生产日期
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Hot Water Tank热水器也是房屋买卖需要考虑的因素，一般使用寿命为10-15年，可以从序列号推断出生产日期，以下是几个常用的品牌的例子：
1，GSW
Style 1: 0331263882（03是生产年份，31是生产周）
Style 2: U1117 F700633（11是生产年份，17是生产周）
2，Rheem and Ruud
Example: 1209D1234 （09是生产年份，12是生产月）
3，American and AO Smith
Style 1: 2008–present:
Example: 16051234567 （16是生产年份，05是生产周）
Style 1：Pre-2008:
M = Month of manufacture
A = January | B = February | C = March | D = April | E = May | F = June | G = July | H = August | J = September | K = October | L = November | M = December
YY = Year of manufacture
Example: 4D051234567 （05是生产年份，D是生产月）
4，Bradford White
YM*******
Y = Year of manufacture
A = 1984 or 2004 | B = 1985 or 2005 | C = 1986 or 2006 | D = 1987 or 2007 | E = 1988 or 2008 | F = 1989 or 2009 | G = 1990 or 2010 | H = 1991 or 2011 | J = 1992 or 2012 | K = 1993 or 2013 | L = 1994 or 2014 | M = 1995 or 2015 | N = 1996 or 2016 | P = 1997 or 2017 | S = 1998 or 2018 | T = 1999 or 2019 | W = 2000 | X = 2001 | Y = 2002 | Z = 2003
M = Month of manufacture
A = January | B = February | C = March | D = April | E = May | F = June | G = July | H = August | J = September | K = October | L = November | M = December
Example: KH6511396 （K是生产年份，H是生产月）