He stuck a 100W positive temperature coefficient heater into the bottom of the block using silicone glue, and the heater heated the block up in around half an hour. He connected a temperature ...

It's also available in black. £34.99, VonHaus The 1500W PTC Space Heater features positive temperature coefficient ceramic technology, meaning it heats up quickly and efficiently, letting you ...

But now, it has a self-regulating heater built into the back of it. Otherwise known as a positive temperature coefficient, it can run heat up through the frame of the chair. And it actually works.

The heating provided by Dreo’s MC706 leverages its hyperamic technology and provides impressive heat regulation. This is achieved thanks to the positive-temperature coefficient heating element ...