Patent ID: 7424887

Claim:
A panel radiator, comprising: an oblong radiation panel body having upper and lower ends; and an oblong, rectangular steam generation unit that has a length shorter than a length of said radiation panel body and that is located on a lower part of said radiation panel body, said steam generation unit having a combustion unit and a heat exchange unit, said combustion unit adapted to directly heat a liquid working fluid and being provided on one side of said rectangular steam generation unit to permit a pressure difference to be formed in said steam generation unit based on a thermal gradient; left and right steam introduction pipes on an upper end of said steam generation unit respectively coupled with a lower end of left and right steam introduction headers of said radiation panel body, one of said left and right steam introduction headers opening into said lower end of said radiation panel body and the other one opening only into said upper end of said radiation panel body, said steam introduction header opening only into said upper end of said radiation panel body extending from said side of said rectangular steam generation unit in which said combustion unit is provided; and a heat pipe constituted by the steam generation unit and panel body upon depressurization.