Assembly of a cast iron boiler ( Weil McLain, H.B. Smith etc)

[1hammer]

Do you need a ASME H Stamp to assemble a cast iron boiler.

 

[chicopee]

This is the clover leaf with the inserted H designating heating boiler applying to the manufacturers' nameplates. Not to my knowledge, however, the installers better know what they are doing with these CI sectional boilers.
Also, with a question like this, post it in the ASME mechanical code forum.