Can condensate leakage from the induced-draft fan housing cause corrosion of the primary heat exchanger?

The statement is false. Condensate leakage from the induced-draft fan housing does not cause corrosion of the primary heat exchanger. The primary heat exchanger typically operates at high temperatures and is designed to handle heat and may be constructed from materials that are resistant to corrosion, such as stainless steel or galvanized steel.

In HVAC systems, particularly those involving gas-fired appliances, the induced-draft fan is designed to help exhaust combustion gases. If there is any leakage of condensate, it is likely to occur within the venting or exhaust system, away from the heat exchanger itself. Additionally, modern heat exchangers often have built-in mechanisms for draining any condensation that may form, which prevents prolonged exposure to moisture that can lead to corrosion.

The risk of corrosion in the heating system is more commonly associated with other factors such as improper maintenance, the presence of acidic condensate in certain types of appliances, and other systemic issues rather than the condensate leakage from the fan housing.