Question

The distance between the first stage regulator and the second stage regulator is 55 feet and the total propane load on the residence is 475,000 btu/hr. What is the minimum size Type L tubing that may be used?

Answer 1

To determine the minimum size Type L tubing that may be used, we need to calculate the propane load on the residence for a given length of tubing.

Step-by-step explanation:

To determine the minimum size Type L tubing that may be used, we need to calculate the propane load on the residence for a given length of tubing. This load can be determined using the formula:

Load = 1,000 x Length x Pressure Drop

In this case, the length is 55 feet and we need to calculate the pressure drop. Assuming a standard pressure drop of 0.5 psi per 100 feet, we can calculate:

Pressure Drop = (0.5/100) x Length

Substituting the values, we get:

Pressure Drop = (0.5/100) x 55 = 0.0275 psi

Now, we can calculate the propane load:

Load = 1,000 x 55 x 0.0275 = 1512.5 btu/hr

Therefore, the minimum size Type L tubing that may be used is 1,512.5 btu/hr.