UL 726 PDF
Price range: $72.36 through $144.72
Oil-Fired Boiler Assemblies
1 Scope
1.1 These requirements apply to oil-fired boiler assemblies.
1.2 Requirements for the installation and use of oil-burning equipment are included in the Standard of the National Fire Protection Association for the Installation of Oil-Burning Equipment, NFPA 31.
1.3 Deleted
Summary of Topics
This revision to UL 726 dated September 24, 2024 includes the following changes in requirements:
– Safety shut down on pressure limit on low pressure steam boilers: 13.2.2.
– Redundant LWCOs on low pressure steam boilers: 13.4.1, 13.4.2, and 13.4.5.
– Updates to align with ULSE style manual: Section 3A and Section 4.





