Course Description

A boiler is a closed pressure vessel that generates hot water or steam for space heating, humidification, or process loads. The fundamental principle is converting chemical energy from fuel-or electrical energy from resistance elements-into thermal energy. This thermal energy transfers to water, raising its temperature or converting it to steam. In HVAC systems, boilers typically supply hydronic heating coils, fan coil units, radiators, or air handling units. Unlike furnaces that heat air directly, boilers heat a fluid that is then distributed throughout a building. This makes boilers ideal for large, multi-zone buildings where even heat distribution is critical.

What you'll learn in this course?

• Identify the major types of boilers used in HVAC systems and their key components.

• Explain the fundamental principles of combustion, heat transfer, and boiler efficiency.

• Describe safe boiler startup, normal operation, and shutdown procedures.

• Implement routine maintenance tasks to extend boiler life and ensure reliability.

• Recognize common boiler faults, troubleshoot basic issues, and apply safety codes.

• Section 1: Boiler Fundamentals & Types (Slides 4-12)

• A boiler is a closed pressure vessel that generates hot water or steam for space heating, humidification, or process loads.

• The fundamental principle of boiler operation is converting chemical energy from fuel (or electrical energy) into thermal energy.

• This thermal energy is transferred to water, raising its temperature or converting it to steam.

• In HVAC systems, boilers typically supply hydronic heating coils, fan coil units, radiators, or air handling units.

Prerequisites

• Basic engineering knowledge and familiarity with HVAC or industrial utility systems