Heb. II, 14, tells us that the devil is to be destroyed. Who then will keep the fire of hell going?

The Catholic Answers

The text means that Christ will destroy the power of the devil over the souls of the redeemed. Satan will never be personally destroyed. And in any case he does not keep the fire of hell going. If Satan had anything to do with it that fire would have been destroyed long ago. He has never enjoyed it. However, the torments of hell are dependent upon the will of God.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty