Gas mixer

A gas mixer, which is adapted to communicate with at least one burner, comprising:

• a base having an inlet portion and a mixing portion, wherein the inlet portion has an air inlet, an air chamber, at least one gas inlet, and an opening, which communicate with each other;
• the air chamber is located between the air inlet and the opening, and has two opposite walls;
• the walls are inclined, and a distance between the walls gradually decreases in a direction from the air inlet to the opening;
• the gas inlet is located on one of the walls;
• the mixing portion has a mixing chamber communicating with the opening, and is also adapted to communicate with the burner;
• and
• a flow splitter provided in the air chamber and located between the gas inlet and the air inlet, wherein the flow splitter divides the air chamber into a first space and a second space;
• the first space communicates with the air inlet, and the second space communicates with the opening and the gas inlet;
• the flow splitter has at least one through hole facing one of the walls, and the first space communicates with the second space through the at least one through hole.