Which of the following is NOT a requirement of a good boiler?

A good boiler is designed with various critical requirements to ensure efficiency, safety, and reliability during operation. The correct choice is that destruction of materials is not a requirement of a good boiler. Instead, a well-functioning boiler should minimize wear and tear on materials to ensure longevity and consistent performance.

A good boiler requires a simple design to facilitate easier maintenance and to enhance operational reliability. A complex design may lead to more frequent issues and increased difficulty in troubleshooting and repairs.

Responsiveness to demands is essential for a boiler, as it must be capable of adjusting to varying load demands efficiently. This adaptability ensures that steam or hot water is provided consistently based on the immediate needs of the system it supports.

Safe operation is paramount in boiler systems. A good boiler must include numerous safety features to prevent accidents and ensure the safe handling of high-pressure steam or hot water, protecting both the system and those who operate it.

In summary, while a boiler must meet the standards of simplicity, responsiveness, and safety, it should not be associated with the destruction of materials, which contradicts the principles of efficient and safe operation.