So something like this heat-powered stove-top fan can come in handy. Such fans, which use Peltier devices to power a small electric motor, are readily available commercially. [bongodrummer ...

Peltier effect modules, also known as solid-state heat pumps, used to be exotic tech but are now quite common. They are actually the reverse of the Kelvin effect. Thermocouples exploit the Kelvin ...

“When a current is supplied, heat is pumped from the cold sink to the hot sink by the Peltier effect ... efficient system comprised of four heat pipe tubes with water as working fluid ...