Two-chamber gas burner device

A two-chamber gas burner which includes a case body having a cavity opened through an opening, a burner plate directly covering the opening of the case body, and a plate unit connected to the burner plate through an upper surface of the burner plate, comprising:

• a first chamber provided inside the cavity;
• at least one second chamber which is substantively smaller than said first chamber, provided and received in said first chamber, wherein said at least one second chamber is complement to said first chamber and is supplementary to said first chamber and each said second chamber is unrestricted to a particular position in said first chamber;
• wherein said plate unit comprises a first plate member and a second plate member, wherein said first plate member is provided directly onto said burner plate such that said burner plate for said first chamber is biased by said first plate member directly and is mounted securely onto said case body, wherein said second plate member is provided on top of said burner plate and said first plate member such that said second plate member is biased against said burner plate through said first plate member to securely mounting said burner plate for said second chamber into position.