They generate heat and create energy, not the other way around!

First you will need some type of fuel and something to generate heat.

But in general the sale seemed to generate little heat.

The power just generates heat, then, as should be normal.

It is also the same type of process the Sun uses to generate heat.

This increase in resistance from all three forces at the same time generates more heat.

I could no longer feel anything below my ankles, and had given up moving them around to generate heat.

However, others criticized the amount of heat generated by the new design.

Both sides, as so often in such debates, generated more heat than light.

To save energy costs, the heat generated by the computer within kept the building warm during in the winter.