heat up

Top connectors which heat up during the test are not burned on properly.

I shall order a barrel of flour at once, and heat up the big oven.

But how about occluded and absorbed gas in the filaments and so on when they heat up?

The soup is boiling, my son; the soup is boiling, but how slow is this fire to heat up!

Let all heat up in the oven for ten minutes, then sprinkle in some currants or sultanas.

I was still watching it heat up when I heard the noise behind me.

I heat up in church and cool off walking home, and cough at night.

And, in the summer, they nearly died with the heat up there; and in the winter with the cold.

But you can not heat up again an interest which has been so often cooled.

Without these safeguards, the overloaded electric line will heat up and may start a fire.