'Heat' in the Bible

They will hunger no longer, nor thirst anymore; nor will the sun beat down on them, nor any [scorching] heat;

Then the fourth angel poured out his bowl on the sun, and it was given power to scorch humanity with [raging] fire.

People were [severely] burned by the great heat; and they reviled the name of God who has power over these plagues, but they did not repent [of their sin] and glorify Him.