What is dirty gas and how does it affect my gas appliance?

What is dirty gas?

Dirty gas refers to gas that contains impurities. These impurities can come from the LPG itself or from the quality of the pigtails, which are the connectors for the gas. The impurities and degradation of pigtails can cause problems for gas regulators and valves in gas geysers and other gas appliances.

Causes and Effects of Dirty Gas

• Impurities in LPG: These impurities, such as oil, moisture, or chemicals, can degrade the plastic materials in pigtails, affecting their performance and integrity.
• Degradation of Pigtails: Poor-quality pigtails, or those that have worn out over time, can produce oily residues that harm the gas system.

Prevention Tips

1. Use High-Quality Pigtails: Choose gas pigtails designed for LPG use and inspect them regularly.
2. Purging Gas Cylinders: Before connecting a new gas cylinder, release some gas into the open air to expel impurities. Be cautious as gas is flammable.
3. Install a Gas Filter: A gas strainer filter can trap contaminants, protecting your appliances and extending their lifespan.

Warranty Information
Dewhot’s warranty does not cover damages caused by dirty gas because it is not considered a manufacturing defect. However, if future evidence suggests a manufacturing issue, Dewhot will review its warranty policy.

Gas Retailer Responsibility
Gas retailers are not responsible for dirty gas, as it is beyond their control. While some retailers claim they have not encountered dirty gas, the issue is sporadic and can happen in batches.

Not All Appliances are Affected
Not all gas appliances are equally affected by dirty gas. Appliances with internal gas proportional valves, like constant temperature and fan-forced gas geysers, are more vulnerable. Gas hobs and appliances without these valves are less likely to be damaged.

Support Reputable Retailers
Always buy your gas cylinders from reputable retailers. Ensure the cylinder has a branded seal that matches the brand of the cylinder to avoid illegal refills and potential contamination.

Conclusion
Taking simple precautionary measures like purging gas cylinders, using high-quality pigtails, and installing gas filters can help protect your gas appliances from dirty gas and ensure their long-term functionality.

Disclaimer
This information is based on current understanding and may evolve as new insights emerge. Always consult experts and conduct specific tests for more detailed guidance.