Portable gas heater

A portable gas heater, comprising:

• a heater body which comprises, a top panel, a front panel, a bottom panel, and two side panels;
• a gas burner mounted on said front panel of said heater body, wherein said gas burner has two inner cavities;
• a gas bottle positioning arrangement which is provided at said heater body for securely receiving a gas bottle inside said heater body to serves as a gas supply and is connected to said gas burner for providing a gas passage between said gas burner and said gas bottle, wherein said gas bottle positioning arrangement comprises a bottle positioning ring horizontally positioned and provided on inner sides of said side panels of said heater body for fitting a central curved portion of an upper part of a cylindrical body of said gas bottle, a bottle positioning bar having a Ω construction for biasing against a central horizontal portion of said upper part of said cylindrical body of said gas bottle, and a bottle positioning base mounted onto said bottom panel of said heater body, wherein said bottom positioning base comprises two positioning tubes and a resilient element on each of said positioning tubes, wherein said positioning bar two ends connected securely to said two positioning tubes of said bottle positioning base respectively, wherein said bottle positioning bar and said bottle positioning ring form a clipping and positioning unit through a spring action of said resilient element to secure said gas bottle into position when said gas bottle is disposed on said bottom panel of said heater body;
• a gas supply arrangement, which is arranged for connecting to said gas bottle, comprising a safety valve, a control button provided on said safety valve and two connecting tubes linked to said inner cavities of said gas burner respectively, wherein said control button is actuated among first, second, and third preset positions;
• and
• a pilot flame arrangement mounted on said heater body at a position which is proximal to said gas burner, 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 unit comprises a gas inlet connected to said safety valve, wherein said electrode rod 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, wherein in said first preset position of said control button, said electrode rod is electrified for igniting gas ejected at said pilot flame unit to generate a pilot light, wherein in said second preset position of said control button, said gas is injected into one of said inner cavities of said infrared burner through one of said connecting tubes, wherein in said third preset position of said control button, said gas is injected into said inner cavities of said infrared burner through said connecting tubes.