I have also always used a heating pad without any problems. Heating bulbs on the other hand, get Mom too hot and can explode. I have never heard of a microwave heating device that holds the temp. for that long. The microwave ones I have maybe hold an hour and it's really hot at first and then not warm enough. I do use the microwave ones for feeding baby birds when I remove them from the incubator, but all I need is heat for about 10 minutes or less. |