A thermally driven power generator having a base and a heat source placed within the base. The thermally driven power generator further having a heat collector is adapted to collect the heat from the heat source through a plurality of fins and a heat sink adapted to release heat into the environment. The thermally driven power generator further having a thermal electric power generation module is sandwiched between the heat collector and a heat sink; the thermal electric power generation module is designed to convert heat collected by the heat collector to electrical power. A tray assembly for a thermally driven power generator, the tray assembly having: a transport tray; and a magnetic element integrated with the transport tray, the magnetic element designed to attract a wick keeper of a candle such that the wick is held in place.