A boiler in which steam is made at a pressure not greater than 103 kilopascals is termed a:

The term that best describes a boiler in which steam is produced at a pressure not greater than 103 kilopascals is "Low-pressure boiler." Low-pressure boilers are specifically defined by their ability to operate below a certain pressure threshold. In many jurisdictions, the classification of low-pressure steam is set at pressures lower than 1 bar (approximately 100 kilopascals), which aligns with the question.

Understanding this classification is important because it affects the design, operation, safety requirements, and regulations governing the boiler. Low-pressure boilers are typically used in various applications, including space heating and hot water supply, where high-pressure steam is unnecessary.

The designation of a heating plant does not accurately reflect the pressure of the steam produced. While a heating plant may utilize low-pressure boilers, the term is broader and encompasses any installation designed for heating purposes, regardless of the pressure classification. High-pressure boilers, on the other hand, operate at thresholds above those typical for low-pressure units and would not apply in this scenario. Steam generators is a term that often refers to devices that produce steam from water but does not specifically denote the pressure classification.

Hence, associating the classification of low-pressure boilers with a boiler operating at or below 103 kilopascals aligns correctly