1. AN AUTOMATIC TEMPERATURE OPERATED EVAPORATOR DEVICE, COMPRISING IN COMBINATION, (A) A LIQUID RECEIVER HAVING AN INLET OPENING THERETO PROXIMATE TO THE BOTTOM THEREOF, AND A LIQUID VAPOR OUTLET THEREFROM PROXIMATE TO THE TOP THEREOF, (B) AN ELECTRICALLY ENERGIZABLE HEATER ELEMENT MECHANICALLY SUPPORTED BY AND DISPOSED WITHIN SAID LIQUID RECEIVER ABOVE THE ELEVATION OF THE RECEIVER INLET OPENING, SAID HEATER ELEMENT BEING ELECTRICALLY AND SUBSTANTIALLY THERMALLY INSULATED FROM DIRECT CONTACT WITH SAID LIQUID RECEIVER AND HAVING ELECTRICAL ENERGIZATION TERMINALS PROJECTING EXTERNALLY OF THE RECEIVER FOR CONNECTION TO A SOURCE OF ELECTRICAL ENERGY, (C) A THERMALLY HIGHLY CONDUCTIVE HEAT TRANSFER PLATE MECHANICALLY INTIMATELY SECURED TO SAID RECEIVER HEATER IN BROAD AREA CONTACT THEREWITH FOR GOOD HEAT TRANSFER THEREBETWEEN TO THEREBY INCREASE THE EFFECTIVE AREA OF HEAT TRANSFER BETWEEN THE LIQUID IN SAID RECEIVER AND SAID HEATER ELEMENT, SAID HEAT TRANSFER PLATE HAVING A FLANGE PORTION POSITIONED ADJACENT TO AN APERTURE IN A WALL OF SAID RECEIVER WHICH FLANGE