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Bosch & Buderus Water Heaters & Manuals

Bosch water heater age decoders, water heater manual sources.

In this article series we give details of how to de-code water heater age for all water heater brand. We also discuss the conditions, maintenance, and factors that affect how long a water heater can be expected to last.

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Bosch Water Heater Age & Manuals

Bosch water heater data tag (C) Daniel Friedman at InspectApedia.comA Bosch Water Heater Co tankless water heater data tagis shown here.

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Bosch Water Heater Age Decoder

Depending on the age of your Bosch water heater, the dates of production or manufacture are found at different points in the serial number that you will find on the water heater's data tag - as given in the Bosch Serial Number reference guide PDF provided later on this page.

Two Bosch water heater serial number formats are common but you will already notice that these commonly-used Bosch age decoder formats do not exactly match the serial number of the LPG firedBosch tankless water heater data tag shown.

All-Numeric: 12345678 where 123 encodes production monty and year encoded by a table available from Bosch and replicated below.

What you will notice is that for each year the company uses a 3-digit code that incrases by 1 for each month of that year. So for 1996, of the 3 digit code 86 = 1996 and the months suffix 1 - 12 as shown in the table below.

For 1998 the year begins with 861 = 1998 January of 1998 while 872 = 1998 December

Similarly for 2002 the year begins with 381 = 2002 January while 392 = 2002 December

Bosch Water Heater All-Numeric Serial Number Decoder

  Year
Month 1998 1999 2000 2001 2002 2004 2004 2005 2006 2007 2008 2009
Jan 861 961 081 181 281 381 481 581 681 781 881 981
Feb 862 962 082 182 282 382 482 582 682 782 882 982
Mar 863 963 083 183 283 383 483 583 683 783 883 983
Apr 864 964 084 184 284 384 484 584 684 784 884 984
May 865 965 085 185 285 385 485 585 685 785 885 985
Jun 866 966 086 186 286 386 486 586 686 786 886 986
Jul 867 967 087 187 287 387 487 587 687 787 887 987
Aug 868 968 088 188 288 388 488 588 688 788 888 988
Sep 869 969 089 189 289 389 489 589 689 789 889 989
Oct 870 970 090 190 290 390 490 590 690 790 890 990
Nov 871 971 091 191 291 391 491 591 691 791 891 991
Dec 872 972 092 192 292 392 492 592 692 792 892 992

...

Alpha-Numeric: AB123456789 where 123 encodes production month and year encoded by a table available from Bosch and encoding year and month just as for the table given above.

Use the same table above once you've piced out the three nnn digits after the first pair of alphabetic characters such as AB shown abovce.

Bosch Water Heater Technical Support & Water Heater Manuals

Also see

Buderus Water Heater Information

Buderus water heater at InspectApedia.com

For Buderus water heater age determination, use the same serial number decoding as given above.


...

Continue reading  at WATER HEATER LIFE or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

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