Disclosed is a replaceable multifunctional heating table including a table frame, a heating assembly and an extension structure. A desktop plate is provided at an upper end of the table frame, and an installation hole is formed in a middle portion of the table plate. The heating assembly includes a combustion pipe provided inside the table frame and is corresponding to the installation hole. The extension structure includes a cover, a tea set and a grill. The cover is configured to cover the installation hole, the tea set is provided on the installation hole, and the grill is provided on the installation hole. One of the cover, the tea set and the grill is provided on the installation hole to make the replaceable multifunctional heating table have a plurality of usage modes.

An apparatus includes a high-pressure tank, a controller, a valve, controlled by the controller, and a heater.