How old is my Laars unit?
Laars is part of Bradford White Corp. 2 serial formats sourced across boiler, water heater.
Serial number decoder for Laars
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: C00B01803
- Laars boiler serial numbers in the era not stated format encode the year as digits 2-3 (YY; 00 = 2000) and the month as letter 1 (A=Jan..M=Dec, I skipped) (source: building-center.org).
- Example: serial C00B01803 decodes to March 2000.
- Laars boiler serial numbers in the before 1999 format encode the year as digits 1-2 (19YY) and the not encoded (source: building-center.org).
- Example: serial 8408375 decodes to 1984.
- Laars's official lookup at laars.com returns warranty / registration lookup.
Decoder pages by product
Format eras
- before 1999 VERIFIED
#######Water Heater, Boiler - era not stated VERIFIED
A##A#####Boiler, Water Heater
Official lookup: the authority
Open the official Laars lookup takes serial number; returns warranty / registration lookup; URL verified live
This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.
What we could not confirm
- 9-char letter-month + YY + letter + 5 digits. Teledyne Laars era also used 7-digit YY##### serials. laars.com/support/warranty is registration only (no lookup).
Sources
- https://www.building-center.org/laars-hvac-age/
- https://www.building-center.org/teledyne-laars-water-heater-age/
- img: Laars-Date-of-Manufacture_Serial-Number-Nomenclature1.png
- img: TELEDYNE-Date-of-Manufacture-Serial-Number-Style-2.jpg
- https://www.laars.com/support/warrantyofficial