I can't find much information about this unit and Regency is horrible to communicate with. I need to know how much space should be between the baffle board and the metal lip that drops down from the top of the fire box. I am restoring this unit and don't want to block the airflow too much.
![[Hearth.com] old regency H2100M, 1991 help [Hearth.com] old regency H2100M, 1991 help](https://www.hearth.com/talk/data/attachments/155/155766-e7934d2f527a0afba33b65a78becb044.jpg?hash=FP-yWh7CzN)
![[Hearth.com] old regency H2100M, 1991 help [Hearth.com] old regency H2100M, 1991 help](https://www.hearth.com/talk/data/attachments/155/155767-03dfaca8d82ea5db9aa11e4bad57ef8e.jpg?hash=45BHRh2lrh)