Oil furnace age

[ROBERT YOUNG]

Clare Brothers.
Model: OLB-503FD
Serial number: 194369
33063
Much thanks.

[Jack Feldmann]

I looked this up in my Prestons Guide 1965 - 2000 Edition, and this model number is not listed. It might be newer than 2000, or older than 1965. Any other date clues on tag?

[ROBERT YOUNG]

I looked this up in my Prestons Guide 1965 - 2000 Edition, and this model number is not listed. It might be newer than 2000, or older than 1965. Any other date clues on tag?
Thanks Jack.
I have to look tomorrow. I am on an another report and I have been wrestling with my OS for the past 2 days.:(

Here is what I was able to come up with seeing I could not come up with a date from the Building Intelligence Center.

Clare (also known as Clare Brothers) is a product line of oil furnaces, and is owned by International Comfort Products(ICP) (which in turn is owned by Carrier, which is a wholly-owned subsidiary of United Technologies Corporation). ICP markets furnaces under the brand names of Arcoaire, Clare, Comfortmaker, Dettson, Heil, KeepRite, Lincoln, and Tempstar. Clare makes residential furnaces and is headquartered in Canada. Clare does not have a public website.
Clare was founded in 1854. The company was later purchased by International Comfort Products, which in turn was purchased by Carrier in 1999. Unknown date of manufacturing.