Crown®
How to determine the date of production/manufacture or age of Crown® HVAC Systems.
The date of production/manufacture or age of Crown® HVAC equipment can be determined from the Bryan number or “Year built” date located on the data plate.
Parent Company: Velocity Boiler Works (Crown Boiler Co.), a subsidiary company of Burnham Holdings, Inc.
Sister or similar Brands: Bryan® | Burnham® | Crown® | New Yorker® | Thermal Solutions® | Thermo Pride® |U.S. Boiler®
Example Crown Series number styles/formats found:
- Style 1: Â 3/18/2010 (Series Number)
- Style 2:Â AI (Series Number)
- Style 2: 98023429 or 12122507P
Style 1:Â Â 3/18/2010
Description: The rating plates will list a “Series” number that reflects the Date of Manufacture. (See Rating Plate below).

Style 2:Â Â AI (Series Number)
Description: The rating plates will list the “Series” number that encodes the Date of Manufacture. (See Slide Chart Below).
The first letter represents Month of manufacture
The second letter represents Year of manufacture


Style 3:Â Â 98023429 or 12122507P
Description: This style is found on Crown Indirect Water Heaters. It is an eight (8) or nine (9) digit numerical serial number. The first two digits reflect the Year of Manufacture. (See below).

Page last updated: 14 Jan 2023