Had a slight glow in the middle of my secondary tubes this evening about 20 minutes after lighting the stove. I’ve attached a photo. I just happened to look at the stove at the right angle and catch it. I opened the door and they cooled down. Burning very dry red oak. Bad or normal? At the time, stove top was around 500 with the fan on
![B1885EF9-9677-4A98-9A65-F4DC8C60F48A.jpeg B1885EF9-9677-4A98-9A65-F4DC8C60F48A.jpeg](https://www.hearth.com/talk/data/attachments/274/274618-f3e31183978a6ecd358b5e59b913652e.jpg)
![B1885EF9-9677-4A98-9A65-F4DC8C60F48A.jpeg B1885EF9-9677-4A98-9A65-F4DC8C60F48A.jpeg](https://www.hearth.com/talk/data/attachments/274/274618-f3e31183978a6ecd358b5e59b913652e.jpg)