| CPC F24C 3/042 (2013.01) [F24C 15/22 (2013.01); F23D 14/06 (2013.01)] | 19 Claims |

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1. A patio heater, comprising:
a base to be supported on a ground;
a stem protruding upwardly away from the base; and
a heat generating device secured to the stem, the heat generating device having:
a burner fluidly connected to a source of a fuel to be burned;
a diffusion sheet enclosing a combustion chamber, the burner located inside the combustion chamber and surrounded by the diffusion sheet;
a reflective shield located above the diffusion sheet; and
at least one reflective fin mounted to the diffusion sheet and extending away therefrom, an angle at which the at least one reflective fin intersects the diffuser sheet and being defined between the at least one reflective fin and the diffuser sheet ranges from 30 to 40 degrees.
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