Burner with integral mixer

A burner for an appliance having a blower, comprising:

• an inner tube extending along a centerline from a first end to a second end and defining a central passage, wherein openings extend radially through the inner tube to the central passage;
• an outer tube extending along a centerline from a first end to a second end and defining a central passage for receiving the inner tube, wherein openings extend radially through the outer tube to the central passage thereof;
• an end cap closing the second ends in a fluid-tight manner;
• a mixing system extending into the first end of the inner tube, comprising:
• a venturi having a central passage in fluid communication with the central passage of the tube;
• a gas supply tube having a first end for receiving fuel and a second end extending into the venturi;
• and
• a fuel nozzle extending into the second end of the gas supply tube and including radially extending openings for delivering the fuel to the central passage of the venturi, wherein air from the blower is received in a radial space between the venturi and the fuel nozzle such that the air is mixed with the fuel flowing through the radial openings in the fuel nozzle and delivered as a mixture of air and fuel to the central passage of the inner tube.