Changing Orifice From Natural Gas To Propane Chart
Introduction
When it comes to changing your gas appliance from natural gas to propane or vice versa, one of the most important things to consider is the size of the orifice. An orifice is a small opening that controls the flow of gas into the burner. The size of the orifice must be adjusted to match the type of gas being used, otherwise, the appliance will not function properly.
Why Change the Orifice?
The orifice size must be changed when switching from natural gas to propane or from propane to natural gas because the two gases have different burning characteristics. Natural gas requires a larger orifice because it has a lower pressure and a lower heating value than propane. Propane requires a smaller orifice because it has a higher pressure and a higher heating value than natural gas.
How to Determine the Correct Orifice Size
To determine the correct orifice size, you will need to consult a conversion chart. This chart will provide you with the correct orifice size based on the type of gas being used, the BTU rating of the appliance, and the diameter and thread pitch of the orifice.
Orifice Size Conversion Chart
Below is a sample orifice size conversion chart for converting from natural gas to propane. The chart provides the orifice size in inches, the drill size, and the BTU rating for different appliance types.
Converting from Propane to Natural Gas
If you need to convert your appliance from propane to natural gas, you will need to use a different orifice size conversion chart. This chart will provide you with the correct orifice size based on the same factors as the propane to natural gas chart.
How to Change the Orifice
Changing the orifice is a relatively simple process that can be done with a few basic tools. Here are the steps to follow:
- Turn off the gas supply to the appliance.
- Remove the burner and locate the orifice.
- Use a wrench or pliers to unscrew the orifice from the burner.
- Replace the orifice with the correct size for the type of gas being used.
- Screw the new orifice into place and tighten it with a wrench or pliers.
- Replace the burner and turn on the gas supply.
- Test the appliance to make sure it is functioning properly.
Conclusion
Changing the orifice from natural gas to propane or from propane to natural gas is an important step in ensuring that your gas appliance functions properly. By using an orifice size conversion chart and following the proper steps, you can easily make the necessary adjustments and enjoy your appliance with the type of gas that best suits your needs.