Goodman® HVAC age

How to determine the date of production/manufacture or age of Goodman® 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.

Parent Company: Operating as independent subsidiary of Daikin Group

Subsidiaries or other related brands: Goodman (GmC), Amana, Janitrol, Daikin

The date of production/manufacture or age of Goodman brand HVAC equipment can be determined from the ten character serial number located on the rating data plate.

Example serial number styles/formats found:

Style 1: 9704011000
Style 2: 5FU5472618P

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

Style 1: 9704811080

Year of manufacture can be determined by using the 1^st & 2^nd positions of the serial number

Month of manufacture can be determined by using the 3^rd & 4^th positions of the serial number

Style 2: 5FU5472618P

Year of manufacture can be determined by using the 3^rd position (2^nd letter) of the serial number

Month of manufacture can be determined by using the 2^nd position (1^st letter) of the serial number

Note: This style used on select Packaged Terminal Air Conditioners (PTAC systems) manufactured for Goodman under the Goodman brand name by Daikin Industries. All units will have the Letter "P" or "D" at the end of the serial number. This style ended shortly after 2012 acquisition of Goodman by Daikin.

Goodman® History¹

1954 - Harold V. Goodman forms air conditioning contractor business in Houston, Texas. Becomes one of the most successful HVAC contractors by late 1960's.
1975 - Company entered HVAC manufacturing with formation of Goodman Manufacturing, L.P. - started as manufacturer of flexible air ducts and plastic blade registers.
1982 - Acquired Janitrol and began manufacturing central air conditioning systems.
1986 - Expanded product offerings to include gas heating products.
1997 - Acquires Raytheon Appliances (predecessor of Amana Corporation).
2001 - Goodman separates the appliance and HVAC divisions.
2002 - Goodman sold the appliance division to Maytag (now Whirlpool), but retained the furnace and air conditioner division including Amana branded HVAC systems.
2004 - Goodman acquired by Apollo Managment, a private equity firm.
2007 - Goodman acquired by Hellman & Friedman, a private equity firm.
2012 - Daikin acquires Goodman Manufacturing.
2016 - Daikin completes 4.2 million square foot, state-of-the-art facility and consolidates Goodman's HVAC manufacturing, logistics, and customer support under one roof - Daikin Texas Technology Park campus, Houston, Texas.

¹Excerpts from https://www.goodmanmfg.com/about/history

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: 08/29/2023

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