With a plate surface of nearly 2 square feet (~1745 cm²) the new AHP-2700CPV Cold/Hot Plate offers 690 Watts of cooling capacity. Ideal for cooling or heating by direct contact, the AHP-2700CPV can be ...

The rig uses a big metal plate as a heat sink over the campfire ... The peltier elements will have to cope with 100C to 130C approx working temperature, but that’s no biggy.

The peltier plate he’s using draws 12v at about 3.5 amps — so about 50W — and if you don’t heat sink it properly you could burn it out in a matter of seconds.