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Bosch® HVAC age

How to determine the date of production/manufacture or age of Bosch® brand HVAC Systems.

The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.

See also: Estimated Useful Service Life Expectancies

Parent Company: Bosch Thermotechnology Corp. a Subsidiary of Advanced Thermal Technologies

Subsidiaries or other related brands: Bosch® | Buderus® | FHP® | Chromalox® | Worcester®

The date of production/manufacture or age of Bosch brand HVAC equipment can be determined from the serial number located on the rating data plate of most modern/current systems

Example serial number styles/formats found:

Style 1a: 3540-112-000001-T111M01973
Style 1b: 2940-455-00015-7735003001
Style 1c: 399A-760-000051-3498752683
Style 1d: 35201740001328733925719
Style 2: 63036333-00-7080-3241
Style 3: 253000-08217-01241-7747019703

Legend: Year is RED; Month is GREEN; Week is BLUE

Style 1a: 3540-112-000001-T111M01973

Year and Month of manufacture can be determined by using 3-digit code located in the 5^th - 7^th positions of the serial number combined. (see chart below)

Style 1b: 2940-455-00015-7735003001

Year and Month of manufacture can be determined by using 3-digit code located in the 5^th - 7^th positions of the serial number combined. (see chart below)

Style 1c: 399A-760-000051-3498752683

Year and Month of manufacture can be determined by using 3-digit code located in the 5^th - 7^th positions of the serial number combined. (see chart below)

Style 1d: 35201740001328733925719

Year and Month of manufacture can be determined by using 3-digit code located in the 5^th - 7^th positions of the serial number combined. (see chart below)

Style 1 Manufacture Date Code Chart:

Year and Month of manufacture can be determined by using 3-digit code located in the 5^th - 7^th positions of the serial number combined. (see chart below)

This style is used with most current model systems, and has been used since 2010.

The manufacture date is always the 5th-7th combined digits of the serial number regardless of dash locations or omission of the dashes.

Style 2: 63036333-00-7080-3241

We are currently unable to determine the Year of manufacture from this style serial number.

This style was used with "legacy" model systems (no longer in production or under warranty), and was used prior to 2010.

You may be able to gather further information from Bosch Technical Support

If you have pertinent information to help us complete this style information, please contact us!

Style 3: 253000-08217-01241-7747019703

We are currently unable to determine the Year of manufacture from this style serial number.

This style was used with "legacy" model systems (no longer in production or under warranty), and was used prior to 2010.

You may be able to gather further information from Bosch Technical Support

If you have pertinent information to help us complete this style information, please contact us!

Bosch Service Parts website provides a model & serial number lookup tool for warranty and parts information, which may assist in determining the age or manufacture date of some systems.

Bosch® History¹

¹Coming soon

Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC/R equipment. Users relying on this information do so at their own risk.

Page last updated: 09/21/2023

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