Saying that all appliances turn energy to heat is true, but saying that all appliances do is turn energy in to heat is not. While heat is still a byproduct, lots of appliances make things move as well.

Why stop at appliances? By that logic, humans are nothing more than self-propelled heaters. The whole universe is nothing but shifting pockets of heat like the ripples of a pond bouncing back and forth until they all disappear.

Such nihilism.

False. My water filter pitcher does not turn energy into heat.

(Ok, fine, it uses gravity to move the water through a filter, which technically converts some of the potential energy of the water into heat through friction, but that’s not something the pitcher does, that’s something the earth does that the pitcher uses to its advantage.)