Summary of Topics b2523_1_20120726_sum.htmlSubject 2523
Bulletin Dated: July 26, 2012
SUMMARY OF TOPICS
The following changes in requirements to the Standard for Solid Fuel-Fired Hydronic Heating Appliances, Water Heaters and Boilers, UL 2523, are being proposed for preliminary review and comment only:
1. For Preliminary Review Only: ANSI/ASME pressure vessel stamps