Summary of Topics b2523_1_20110902_sum.htmlSubject 2523
Bulletin Dated: September 2, 2011
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:
1. Revision of the definition of hydronic heating appliance
2. Deletion of 23.10
3. Clarification of 120�F (49�C) reset requirements for water heaters