Heat transfers from warm to cold. It does this until it reaches equilibrium. Equilibrium is when the 2 objects have the heat, which is usually cold.
Are there different ways that heat gets transferred?
And radiation is when heat from an object warms up another object that isn't touching it. The invisible heat waves are what is heating up the other object.
Yes, there are! There is convection, conduction, and radiation. Conduction happens when the two objects are touching. Convection happens when the heat is circulating, heat rises up, and cold sinks down, like in your house all the cool air is in the basement, and all the warm air is in the rooms that are higher up in the house.
So when I feel the heat from the candle while my hand is beside it, that would be radiation
But if I hold my hand above the candle flame, then that would be convection because the heat is rising up to my hand.