C. F. Keil and Franz Delitzsch on 2 Chronicles 29:7

2Ch 29:7

Even (גּם) the doors of the porch have they shut, and caused the service in the sanctuary, the lighting of the lamps, and the sacrifices of incense, to cease; see on 2Ch 28:24. The words, “and they brought not burnt-offerings in the sanctuary to the God of Israel,” do not imply the complete cessation of the legal sacrificial worship, but only that no burnt-offerings were brought to the God of Israel. Sacrifices offered upon the altar of burnt-offering built after a heathen pattern by Ahaz were not, in the eyes of the author of the Chronicle, sacrifices which were offered to the God of Israel; and it is also possible that even this sacrificial worship may have more and more decayed. קדשׁ, 2Ch 29:7, is the whole sanctuary, with the court of the priests.