What is a potential consequence of poor draft in a boiler system?

A potential consequence of poor draft in a boiler system is incomplete combustion and increased emissions. When the draft is insufficient, it restricts the flow of combustion air into the boiler. This inadequate air supply can prevent the fuel from burning completely, resulting in unburned fuel, which leads to the production of smoke and other harmful emissions, such as carbon monoxide and particulate matter. Incomplete combustion not only impacts air quality but can also decrease the overall efficiency of the boiler system, as energy that could be derived from the fuel is wasted.

While excessive fuel consumption and higher operational costs from repairs could also be associated with issues in a boiler system, they are typically secondary effects of incomplete combustion and poor draft. Decreased water quality is generally not directly linked to draft issues but could arise from other operational problems within the boiler system. Hence, the primary and most direct consequence of poor draft is the incomplete combustion and the resulting increase in emissions.