What is the maximum horizontal length of the chimney connector for natural draft appliances?

The correct answer indicates that the maximum horizontal length of the chimney connector for natural draft appliances is 10 feet. This is a critical guideline in ensuring the proper venting of combustion gases from the appliance to the outside atmosphere.

When dealing with natural draft appliances, it is essential to maintain specific lengths for horizontal runs of chimney connectors to prevent complications such as condensation, backdrafting, or inefficient venting, which could lead to safety hazards. A maximum length of 10 feet allows for optimal airflow and efficiency, ensuring that the gases rise adequately within the chimney system due to the natural draft created by the temperature difference.

Longer horizontal runs can disrupt the flow of combustion gases, potentially leading to incomplete combustion and the accumulation of harmful gases inside the home. Thus, understanding the limitations on chimney connector lengths is crucial for compliance with safety codes and ensuring mechanical efficiency in heating systems.