

If the boiler was manufactured from 1984 to 1999, the serial number ends in a four digit date code. If the boiler was manufactured from 2000 to present, the serial number ends in a six digit date code. Weil McLain Heating Boiler Age Decoder, at will decode the heating boiler's CP/Serial Number.

At the company's website you will find these instructions:Įnter the 7-digit CP/Serial Number of the boiler to obtain the manufacturing date and any associated information on the product. If the CP# is only 6 digits, enter a leading zero, e.g. When using off-site links like the one we give above, use your browser's 'back' button to return to this website.Ĭarson Dunlop Associates' Technical Reference Guide decodes equipment data tags Currently, no information is available for EG and EGH boilers.įor those models you'll need to call the manufacturer, found at WEIL McLAIN Manuals This look-up will not give manufacturing information for any other Weil-McLain product but boilers. The furnace in our photo is taking much of its 'return air' from the basement - a very expensive way to heat a home.
