Portable Gas Heater

A portable gas heater, comprising a heater body, a gas burner, a gas supply arrangement arranged for connecting to a gas bottle which contains a gas supply, and a gas bottle positioning arrangement, wherein said heater body comprises a front panel, a door, two side panels, a top panel and a bottom panel connecting together to form said heater body, wherein said gas burner is mounted on said front panel of said heater body, wherein said gas supply arrangement is connected to said gas burner for providing a gas passage between said gas burner and the gas bottle, wherein said gas supply arrangement comprises a safety valve, a control button provided on said safety valve and a connecting tube, wherein the gas bottle is arranged for receiving inside said heater body to secure into position for providing gas supply, wherein said gas burner is an infrared burner which has two inner cavities, wherein said gas heater further comprises a pilot flame arrangement provided for the gas passage, wherein said pilot flame arrangement comprises a thermocouple, a pilot flame unit and an electrode rod operatively connecting with each other, wherein said pilot flame arrangement is mounted on said heater body at a position which is proximal to said gas burner, wherein said pilot flame unit of said pilot flame arrangement comprises a gas inlet connected to said safety valve, wherein said electrode rod of the pilot flame arrangement is connected to an ignition wire of said safety valve, wherein said pilot flame unit comprises a pilot fire nozzle, a mixing tube and a connector cooperatively connecting with each others.