Hydrogen mixing system

A system for mixing hydrogen gas and air comprising:

• a housing extending from a first end to a second end and defining a mixing chamber, the second end receiving the air;
• a tubular mixer provided in the mixing chamber and extending along a central axis from a first end to a second end, the mixer having an outer surface and an inner surface defining a central passage, the second end being closed by an end wall in a fluid-tight manner, the mixer having first fluid directing structure for directing the air and the hydrogen gas radially inward from the mixing chamber to the central passage to form a mixture of hydrogen gas and air;
• and
• a distributor secured to the first end of the housing and receiving the mixture of hydrogen gas and air from the first end of the mixer, the distributor including second fluid directing structure for directing the mixture radially outward to a burner to be ignited.