What is the minimum size of a manhole found on a boiler?

The minimum size of a manhole found on a boiler is specified to ensure that individuals can safely access the interior for maintenance, inspection, or repairs. The size and dimensions are regulated to accommodate the average person's body size, allowing for easy entry and egress without compromising safety.

Choosing the size of 11"x15" meets these requirements, balancing accessibility while also complying with industry standards. By ensuring that the manhole is adequately sized, it reduces the risk of accidents and ensures that operators can work effectively within the boiler’s confined spaces.

Larger sizes, such as those offered in other choices, can provide additional space but are not generally considered the minimum requirement. The minimum sizes, therefore, are designed to fulfill safety and operational standards without being excessively large.