In theory, yes, if it is insulated well enough. It all depends on the environment of the blanket. For example if the blanket is in direct contact with an aluminum cattrack (=big heat sink) it might not reach the desired temp or take much longer than with a wooden cattrack which conducts less heat. ...

I all.
Need advice. I have to order my first 2 heat blankets, my power limit is about 2600W so I wonder if a 2100mm*400mm blanket can reach 90°C with 1300W in a reasonable amount of time.
Thanks