Weak flames or uneven burning suggest clogged burner ports, low gas pressure

https://pub-5df9a8a2b16f43199e21df9d0525737c.r2.dev/gas-log-fireplace/index.html

Weak flames or uneven burning suggest clogged burner ports, low gas pressure, or improper air-to-gas mix that can lead to soot and inefficiency.