Reply To: soot marks from radiators Home › Forums › Public Forums › General Plumbing › soot marks from radiators › Reply To: soot marks from radiators 9 Jan 2001 at 5:09 am #289593 fourth yearParticipant This has been a problem for ages. Even baseboard radiation can have the problem if it is not installed properly. It is dust not soot. The same as a hot air system can get at its registers.
