It was like heaping coals of fire on my head.

Indeed he was, as the saying goes, on coals of fire for my account.

Her hand burned like a coal of fire as she lifted him into the other wind.

He was heaping coals of fire on my head, so to speak.

In the reddish sunlight, it might have been a coal of fire.

Miles didn't pause in burying the dead coals of last night's fire.

But her eyes on me were like coals of fire!

And your care of me is like coals of fire on my head!

The eyes were red as coals of living fire.

An' his eyes was like black coals of fire.