Thermo-Dynamics-Boiler-Company serial 6245J
I don’t have the ThrermoDynamics data but here is their contact issue if it helps.
[FONT=Arial]DELAWARE, MARYLAND, NEW YORK (UPSTATE),
NEW JERSEY, PENNSYLVANIA[/FONT]
JOHN STACK SALES COMPANY[FONT=Arial][/FONT]
[FONT=arial, Arial, Helvetica]575 Wyoming Avenue[/FONT][FONT=arial, Arial, Helvetica], Suite A
[/FONT][FONT=arial, Arial, Helvetica]Wyoming[/FONT][FONT=arial, Arial, Helvetica], PA 18644
Phone (Toll Free): (888) 466-4328
Phone (Office): (570) 693-3050
Fax: (570) 693-2294[/FONT]
Thanks Chris. I called and they told me 1993. I then asked how they got to 1993 based on the serial and was put on hold for so long that I had to hang up. So this will remain one of lifes mysteries until I see another unit on an inspection and have to call again.