Using Table 2-1, what would the minimum vent diameter be for a 150,000 BTU/h furnace with a 10' single wall lateral connector?

For a 150,000 BTU/h furnace, the minimum vent diameter is crucial for ensuring proper venting that allows for safe and efficient operation of the furnace. Using the referenced Table 2-1, the venting requirements correlate with the input BTU rating of the appliance.

A 150,000 BTU/h furnace generally requires a venting diameter that ensures adequate airflow and minimizes the risk of backdrafts and blockages. The selection of a 5-inch vent diameter aligns with established standards for appliances of this capacity when considering the length of the lateral connector—in this case, 10 feet—which also affects the venting requirements.

Choosing this size helps maintain the right balance of draft performance needed for the furnace, optimizing combustion and efficiency. This is essential not only for the operation of the system but also for safety, reducing the potential for hazardous conditions due to improper venting.