What must be done to orifices when converting from natural gas to LP gas?

When converting from natural gas to LP (liquefied petroleum) gas, it is necessary to replace the orifices. This is because natural gas and LP gas have different characteristics, including varying pressures and gas densities. Natural gas typically operates at a higher volume and lower pressure compared to LP gas, which requires a different size of orifice to ensure proper gas flow and combustion.

Using the original orifices designed for natural gas can lead to inefficient burners that may not function properly or could even become dangerous due to improper gas feeding. Therefore, replacing the orifices with ones specifically designed for LP gas ensures that the appliance operates safely and efficiently in its new configuration.