Red Seal Oil Heat System Technician Practice Exam 2025 – The Comprehensive Guide for Exam Success!

A draft inducer fan plays a crucial role in maintaining the efficiency and safety of an oil heating system by helping to create and maintain the correct draft. Draft refers to the flow of air and exhaust gases through the combustion chamber and flue. By assisting in this process, the draft inducer fan ensures that sufficient air is supplied to the burner for complete combustion of the oil. This not only maximizes heat output but also minimizes the production of harmful emissions such as carbon monoxide.

Maintaining the proper draft is essential for optimizing combustion; if draft levels are too low, it can lead to incomplete combustion, resulting in a waste of fuel and potential safety hazards. The inducer fan effectively creates a negative pressure that helps draw flue gases out of the combustion chamber and through the chimney or venting system, thus promoting a steady and efficient operation of the heating system.