Ace the New York Low Pressure Boiler COF Test 2026 – Power Up Your Certification Journey!

Question: 1 / 400

What is meant by "draft" in relation to a boiler?

The amount of fuel consumed

The flow of air and combustion gases in the boiler system

Draft refers to the flow of air and combustion gases in the boiler system. It is vital for the proper operation of a boiler, as it affects the efficiency of combustion and the removal of flue gases. A good draft ensures that air is drawn into the burner for combustion and that the products of combustion are effectively expelled from the boiler. This flow is influenced by the design of the chimney or flue, ambient temperature, and atmospheric pressure.

Inadequate draft can lead to combustion inefficiencies, which can cause incomplete combustion, increased emissions, and potentially hazardous situations due to the buildup of gases. Conversely, excessive draft can disturb combustion stability and lead to higher operational costs. Understanding how draft works is essential for maintaining safe and efficient boiler operation.

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The pressure difference in the boiler

The temperature of exhaust gases

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