What is the maximum length of a Natural Draft horizontal chimney connector for Fuel oil?

The maximum length of a natural draft horizontal chimney connector for fuel oil is indeed 10 feet. This specification is crucial because it ensures effective venting of combustion gases and maintains proper draft conditions. A horizontal chimney connector serves as a conduit for exhaust gases to move from the appliance to the chimney, and longer connectors could create issues such as insufficient draft, increased back pressure, or condensation of combustion gases, which could lead to corrosion and performance issues.

While connectors longer than 10 feet are often discouraged, regulations specify that 10 feet is the maximum length to achieve optimal functioning and safety standards. This guideline helps maintain the efficiency of the heating system while also ensuring the safety of the installation, mitigating risks associated with poor ventilation.