If the furthest appliance is 32 feet away with a BTU/hr rating of 84,000 BTU/hr, what size pipe is required?

To determine the appropriate size of the pipe needed to supply gas to an appliance rated at 84,000 BTU/hr located 32 feet away, it's essential to consider the pressure drop that occurs over distance and ensure that there is sufficient gas flow.

For propane, the sizing of piping is influenced by factors such as the BTU rating of the appliance, the distance from the gas supply, and the number of fittings or bends that would restrict flow. Based on standard tables for propane piping, which provide guidance on how much gas can be delivered through different sizes of pipes over various distances, the correct nominal size must be sufficient to handle the maximum demand of the appliance while maintaining adequate pressure and flow.

In this case, a 1/2 inch nominal iron pipe typically has the capacity to supply appliances with a BTU rating around this range over 32 feet, depending on the specific table being used and the actual pressure of the gas supply. A 1/2 inch pipe would allow enough gas to flow to meet the 84,000 BTU/hr requirement adequately while ensuring that the pressure drop remains within acceptable limits.

Choosing a larger diameter, such as 3/4 inch or 1 inch, would also meet the flow requirements, but it