Help please, house has had 3 additions and we are trying to figure out when the Boiler was installed. Somewhere between 85 and 2003.
Thanks,
Why dont you call them and ask them. It would help if you had the serial number
http://www.weil-mclain.com/images/img_contact_head.jpg
Headquarters
500 Blaine Street
Michigan City, IN 46360-2388
(219)879-6561
Series 4 is pre 1977. sorry I don’t have an exact date.