In accordance with principles described herein, portable heated pads for pets, and methods and systems for using the same, are provided that overcome some (or all) of the problems commonly associated with existing pet pads. These portable heated pads are easily transportable, and are preferably provided with cushion material. One or more heating elements, such as silver carbon paste or flexible graphite felt, are also provided in each portable heated pad. The heat settings of the one or more heating elements are controlled, for example, by one or more power switches, open loop temperature regulators, pressure push switches, sensor switches, and/or fuse circuits. A frame may also be used in connection with the portable heated pad. Various alternative embodiments are also disclosed.