My mom house gas hob has encounter some problem, like its harder to light it up and the gas valve blocked by carbon so the fire is un-even now.

- Budget can up to 3k, not looking to buy the best one but the option that provides the most value for my money
- Wet kitchen
- she cook almost everyday, Chinese cuisine.

Requirement: two burners, easy to clean, durable/reliable

can someone recommend some brand or model so I get an idea to start with ?