Abstract: A heating device for warming the contents of bottles and other containers. The device has a casing in which a radiant heater is mounted and a container-receiving cylindrical insert in the casing in heat transfer relationship to the radiant heater. The insert is removable from the casing through an opening in the casing top to facilitate cleaning. The insert has an imperforate lower portion capable of intercepting and trapping any product which may drip or run down the container side and openings in an upper portion allowing air to circulate into convective heat transfer with the container. The closed base of the insert has a raised seat which spaces the bottom of the container above the insert base to allow air to circulate across the bottom of the insert and to prevent any product collected in the insert from soiling the container.