NET

12 The king tore down the altars the kings of Judah had set up on the roof of Ahaz’s upper room, as well as the altars Manasseh had set up in the two courtyards of the Lord’s temple. He crushed them and threw the dust in the Kidron Valley.

Darby

12 And the king broke down the altars that were on the roof of the upper chamber of Ahaz, which the kings of Judah had made, and the altars that Manasseh had made in the two courts of the house of Jehovah, and he shattered them, [removing them] from thence, and cast the powder of them into the torrent of Kidron.

KJV

12 And the altars that [were] on the top of the upper chamber of Ahaz, which the kings of Judah had made, and the altars which Manasseh had made in the two courts of the house of the LORD, did the king beat down, and brake [them] down from thence, and cast the dust of them into the brook Kidron.