Janitrol gas fired boiler ser.# 20698.
Sorry, I believe its model 7-22. Picture came out blurry.
Any chance that there was a zero before the first number (2)? Janitrol is now Goodman and the first two numbers of the serial is the year…but this is apparently not the case. Tough one.
Thanks for trying, i will note that it is an old unit and age cannot be confirmed.