Clearances from the tops of boilers to the ceiling should comply with what?

Clearances from the tops of boilers to the ceiling should comply with Table 1004.3.1 because this table provides specific regulations regarding the required clearances based on the type of boiler and its installation. These requirements are designed to ensure safety, facilitate maintenance, and prevent fire hazards. Compliance with this table is crucial because it reflects the standardized practices established by the code, which helps to ensure that installations are safe and effective.

Manufacturer's guidelines, while important, might vary between different boiler models and are often influenced by specific design features. Local building codes may incorporate elements from various codes, but they could also have their own unique requirements that may not be as precise as those given in the standardized table. UL (Underwriters Laboratories) standards pertain to safety testing and certification, but might not cover installation clearances in detail. Therefore, relying on Table 1004.3.1 provides a consistent and code-compliant approach to determining these necessary clearances.