Patent ID: 7654257

Claim:
A radiant tube heater assembly comprising a housing; an opening in one end of said housing; a burner in said housing aligned with said opening; a gas inlet extending into said housing and connected to said burner for introducing fuel into said burner; a blower in said housing for introducing combustion air into the housing for mixing with the fuel and for blowing a flame and the products of combustion through said opening; a U-shaped burner tube including a first leg having an open end connected to said housing around said opening for receiving the flame and the products of combustion, a U-shaped outer end remote from the housing, and a second leg extending from said U-shaped outer end toward said housing, said second leg having a closed end in close proximity to the housing; an exhaust tube coaxial with and extending through a major portion of said second leg of the burner tube and through said U-shaped outer end for discharging the products of combustion from the burner tube; and a reflector connected to said one end of said housing and extending around the top and sides of the burner tube for directing heat downwardly.