Hamilton® – Winchester®

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

The date of production/manufacture or age of Hamilton® or Winchester® brand HVAC equipment can be determined from the serial number located on the data plate.

Parent Company:  Hamilton Home Products

Example serial number styles/formats found:

  • Style 1:    01 01 101 2697 1000

Style 1:   01 01 101 2697 1000

Week of manufacture can be determined by using the 8th & 9th numerical digits.
Year of manufacture can be determined by using the 10th & 11th numerical digits.

Page last updated: 7/26/2017

Main Office:
8260 Howe Industrial Parkway, Suite F, Canal Winchester, OH 43110

Customer Service Phone:
(800) 879-0123

Customer Service Email:
info@hhpinc.net

Business Hours:
M-F 8:30 AM to 5:00 PM

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