According to some embodiments, an apparatus for warming a patient on a thermalpad includes a heating element to heat a surface of the thermal pad. A power unitis operable to provide power to the heating element. Respective ones of a pluralityof sensors are coupled to detect temperature at select portions of the surfaceof the thermal pad, while a heating element sensor is coupled to detect a temperatureof the heating element. A temperature control circuit board is embedded withinthe thermal pad and is electrically coupled to the plurality of sensors and theheating element sensor. The temperature control circuit board is operable tolimit a temperature at the surface of the thermal pad to a safe temperature basedon the temperature detected by the plurality of sensors and the heating elementsensor.
