The plate above the firebox. It controls a fire; it does not seal your house.
Regulates airflow while a fire is burning. What it does not do is stop conditioned air escaping up an idle chimney, because it was never gasketed. If your reason for looking at it is a draught or a heating bill, the component you actually want is a top-sealing damper at the flue outlet.
Damper work is part of what we do across Dallas–Fort Worth. CSIA-certified technicians, a photo report of what we actually saw, and a written quote before anything starts.
Free written quote. Same-week scheduling. 24/7 emergency response when you need it.
Active leak, animal in flue, post-fire damage, or smoke event? Real humans on the line 7 AM to 12 AM every day — replies in under 2 minutes. Tech dispatch within 2 hours during business hours, subject to crew availability after-hours.
Emergency line