Which of the following is not one of the five main types of boilers according to TDLR?

The classification of boilers typically includes five main types based on their design and function. The types usually recognized are:

1. Heating boilers: These are designed to provide hot water or steam for space heating.

2. Electric boilers: These utilize electrical energy to generate steam or hot water, and they play a significant role in specific applications, especially where fossil fuels are not desired for environmental or safety reasons.

3. Steam generating boilers: Specifically designed to produce steam for power generation or various industrial processes.

4. High-pressure boilers: These are used to generate steam at high pressures and temperatures for industrial applications.

5. Nuclear boilers: While less common, these are designed to utilize nuclear reactions to produce heat, which in turn generates steam.

In this context, the answer identifies that "Electric boiler" is not one of the five main types recognized by TDLR as a primary classification. It’s important to understand that while electric boilers do exist and serve practical purposes, they may be classified differently within regulations or categories based on operational characteristics, safety, and design limitations.

Nuclear boilers, heating boilers, and steam generator boilers are explicitly included in the main types due to their significant role in energy generation and heating applications across various industries. Electric boilers, while valid